Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc vfs updates from Al Viro: "Assorted misc bits and pieces. There are several single-topic branches left after this (rename2 series from Miklos, current_time series from Deepa Dinamani, xattr series from Andreas, uaccess stuff from from me) and I'd prefer to send those separately" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (39 commits) proc: switch auxv to use of __mem_open() hpfs: support FIEMAP cifs: get rid of unused arguments of CIFSSMBWrite() posix_acl: uapi header split posix_acl: xattr representation cleanups fs/aio.c: eliminate redundant loads in put_aio_ring_file fs/internal.h: add const to ns_dentry_operations declaration compat: remove compat_printk() fs/buffer.c: make __getblk_slow() static proc: unsigned file descriptors fs/file: more unsigned file descriptors fs: compat: remove redundant check of nr_segs cachefiles: Fix attempt to read i_blocks after deleting file [ver #2] cifs: don't use memcpy() to copy struct iov_iter get rid of separate multipage fault-in primitives fs: Avoid premature clearing of capabilities fs: Give dentry to inode_change_ok() instead of inode fuse: Propagate dentry down to inode_change_ok() ceph: Propagate dentry down to inode_change_ok() xfs: Propagate dentry down to inode_change_ok() ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2016-10-10 13:04:49 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2016-10-10 13:04:49 -0700
commit: abb5a14fa20fdd400995926134b7be9eb8ce6048 (patch)
tree: 085add41cae3193b8c8293d25b453fd1ecae0c19 /fs
parent: 911f9dab301e8583143c7e75b552eadd434ea0a8 (diff)
parent: e55f1d1d13e7f1c364672d667d78fd1f640ab9f9 (diff)
download: linux-abb5a14fa20fdd400995926134b7be9eb8ce6048.tar.gz
linux-abb5a14fa20fdd400995926134b7be9eb8ce6048.tar.bz2
linux-abb5a14fa20fdd400995926134b7be9eb8ce6048.zip
103 files changed, 557 insertions, 448 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 5b6a1743ea17..b3c2cc79c20d 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -276,32 +276,26 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
 	switch (handler->flags) {
 	case ACL_TYPE_ACCESS:
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			retval = posix_acl_equiv_mode(acl, &mode);
-			if (retval < 0)
+			struct iattr iattr;
+
+			retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
+			if (retval)
 				goto err_out;
-			else {
-				struct iattr iattr;
-				if (retval == 0) {
-					/*
-					 * ACL can be represented
-					 * by the mode bits. So don't
-					 * update ACL.
-					 */
-					acl = NULL;
-					value = NULL;
-					size = 0;
-				}
-				/* Updte the mode bits */
-				iattr.ia_mode = ((mode & S_IALLUGO) |
-						 (inode->i_mode & ~S_IALLUGO));
-				iattr.ia_valid = ATTR_MODE;
-				/* FIXME should we update ctime ?
-				 * What is the following setxattr update the
-				 * mode ?
+			if (!acl) {
+				/*
+				 * ACL can be represented
+				 * by the mode bits. So don't
+				 * update ACL.
 				 */
-				v9fs_vfs_setattr_dotl(dentry, &iattr);
+				value = NULL;
+				size = 0;
 			}
+			iattr.ia_valid = ATTR_MODE;
+			/* FIXME should we update ctime ?
+			 * What is the following setxattr update the
+			 * mode ?
+			 */
+			v9fs_vfs_setattr_dotl(dentry, &iattr);
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 8b1999b528e9..aa639bb1f289 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1094,7 +1094,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct p9_wstat wstat;
 
 	p9_debug(P9_DEBUG_VFS, "\n");
-	retval = inode_change_ok(d_inode(dentry), iattr);
+	retval = setattr_prepare(dentry, iattr);
 	if (retval)
 		return retval;
 
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index eeabcb0bad12..0e6ad3019711 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -558,7 +558,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 
 	p9_debug(P9_DEBUG_VFS, "\n");
 
-	retval = inode_change_ok(inode, iattr);
+	retval = setattr_prepare(dentry, iattr);
 	if (retval)
 		return retval;
 
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index 335055d828e4..f57baaa511aa 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -303,7 +303,7 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr)
 	unsigned int ia_valid = attr->ia_valid;
 	int error;
 	
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 
 	/*
 	 * we can't change the UID or GID of any file -
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index 0fdb0f5b2239..1aa243502c7f 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -219,7 +219,7 @@ affs_notify_change(struct dentry *dentry, struct iattr *attr)
 
 	pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);
 
-	error = inode_change_ok(inode,attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		goto out;
 
diff --git a/fs/aio.c b/fs/aio.c
index 4fe81d1c60f9..1157e13a36d6 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -274,14 +274,17 @@ __initcall(aio_setup);
 static void put_aio_ring_file(struct kioctx *ctx)
 {
 	struct file *aio_ring_file = ctx->aio_ring_file;
+	struct address_space *i_mapping;
+
 	if (aio_ring_file) {
 		truncate_setsize(aio_ring_file->f_inode, 0);
 
 		/* Prevent further access to the kioctx from migratepages */
-		spin_lock(&aio_ring_file->f_inode->i_mapping->private_lock);
-		aio_ring_file->f_inode->i_mapping->private_data = NULL;
+		i_mapping = aio_ring_file->f_inode->i_mapping;
+		spin_lock(&i_mapping->private_lock);
+		i_mapping->private_data = NULL;
 		ctx->aio_ring_file = NULL;
-		spin_unlock(&aio_ring_file->f_inode->i_mapping->private_lock);
+		spin_unlock(&i_mapping->private_lock);
 
 		fput(aio_ring_file);
 	}
diff --git a/fs/attr.c b/fs/attr.c
index 42bb42bb3c72..a19a64d41e7e 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -17,19 +17,22 @@
 #include <linux/ima.h>
 
 /**
- * inode_change_ok - check if attribute changes to an inode are allowed
- * @inode:	inode to check
+ * setattr_prepare - check if attribute changes to a dentry are allowed
+ * @dentry:	dentry to check
  * @attr:	attributes to change
  *
  * Check if we are allowed to change the attributes contained in @attr
- * in the given inode.  This includes the normal unix access permission
- * checks, as well as checks for rlimits and others.
+ * in the given dentry.  This includes the normal unix access permission
+ * checks, as well as checks for rlimits and others. The function also clears
+ * SGID bit from mode if user is not allowed to set it. Also file capabilities
+ * and IMA extended attributes are cleared if ATTR_KILL_PRIV is set.
  *
  * Should be called as the first thing in ->setattr implementations,
  * possibly after taking additional locks.
  */
-int inode_change_ok(const struct inode *inode, struct iattr *attr)
+int setattr_prepare(struct dentry *dentry, struct iattr *attr)
 {
+	struct inode *inode = d_inode(dentry);
 	unsigned int ia_valid = attr->ia_valid;
 
 	/*
@@ -44,7 +47,7 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
 
 	/* If force is set do it anyway. */
 	if (ia_valid & ATTR_FORCE)
-		return 0;
+		goto kill_priv;
 
 	/* Make sure a caller can chown. */
 	if ((ia_valid & ATTR_UID) &&
@@ -77,9 +80,19 @@ int inode_change_ok(const struct inode *inode, struct iattr *attr)
 			return -EPERM;
 	}
 
+kill_priv:
+	/* User has permission for the change */
+	if (ia_valid & ATTR_KILL_PRIV) {
+		int error;
+
+		error = security_inode_killpriv(dentry);
+		if (error)
+			return error;
+	}
+
 	return 0;
 }
-EXPORT_SYMBOL(inode_change_ok);
+EXPORT_SYMBOL(setattr_prepare);
 
 /**
  * inode_newsize_ok - may this inode be truncated to a given size
@@ -202,6 +215,21 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de
 			return -EPERM;
 	}
 
+	/*
+	 * If utimes(2) and friends are called with times == NULL (or both
+	 * times are UTIME_NOW), then we need to check for write permission
+	 */
+	if (ia_valid & ATTR_TOUCH) {
+		if (IS_IMMUTABLE(inode))
+			return -EPERM;
+
+		if (!inode_owner_or_capable(inode)) {
+			error = inode_permission(inode, MAY_WRITE);
+			if (error)
+				return error;
+		}
+	}
+
 	if ((ia_valid & ATTR_MODE)) {
 		umode_t amode = attr->ia_mode;
 		/* Flag setting protected by i_mutex */
@@ -217,13 +245,11 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de
 	if (!(ia_valid & ATTR_MTIME_SET))
 		attr->ia_mtime = now;
 	if (ia_valid & ATTR_KILL_PRIV) {
-		attr->ia_valid &= ~ATTR_KILL_PRIV;
-		ia_valid &= ~ATTR_KILL_PRIV;
 		error = security_inode_need_killpriv(dentry);
-		if (error > 0)
-			error = security_inode_killpriv(dentry);
-		if (error)
+		if (error < 0)
 			return error;
+		if (error == 0)
+			ia_valid = attr->ia_valid &= ~ATTR_KILL_PRIV;
 	}
 
 	/*
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 53bb7af4e5f0..247b8dfaf6e5 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -79,11 +79,9 @@ static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			ret = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (ret < 0)
+			ret = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (ret)
 				return ret;
-			if (ret == 0)
-				acl = NULL;
 		}
 		ret = 0;
 		break;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 33fe03551105..e62fd50237e4 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3161,7 +3161,6 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
 				    struct btrfs_trans_handle *trans, int mode,
 				    u64 start, u64 num_bytes, u64 min_size,
 				    loff_t actual_len, u64 *alloc_hint);
-int btrfs_inode_check_errors(struct inode *inode);
 extern const struct dentry_operations btrfs_dentry_operations;
 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 void btrfs_test_inode_set_ops(struct inode *inode);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index fea31a4a6e36..4843cb994835 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2040,7 +2040,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 		 * flags for any errors that might have happened while doing
 		 * writeback of file data.
 		 */
-		ret = btrfs_inode_check_errors(inode);
+		ret = filemap_check_errors(inode->i_mapping);
 		inode_unlock(inode);
 		goto out;
 	}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ca01106795ea..92346a403a89 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5072,7 +5072,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
 	if (btrfs_root_readonly(root))
 		return -EROFS;
 
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
@@ -10544,21 +10544,6 @@ out_inode:
 
 }
 
-/* Inspired by filemap_check_errors() */
-int btrfs_inode_check_errors(struct inode *inode)
-{
-	int ret = 0;
-
-	if (test_bit(AS_ENOSPC, &inode->i_mapping->flags) &&
-	    test_and_clear_bit(AS_ENOSPC, &inode->i_mapping->flags))
-		ret = -ENOSPC;
-	if (test_bit(AS_EIO, &inode->i_mapping->flags) &&
-	    test_and_clear_bit(AS_EIO, &inode->i_mapping->flags))
-		ret = -EIO;
-
-	return ret;
-}
-
 static const struct inode_operations btrfs_dir_inode_operations = {
 	.getattr	= btrfs_getattr,
 	.lookup		= btrfs_lookup,
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index a87675ffd02b..1379e59277e2 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4329,7 +4329,7 @@ static int __process_new_xattr(int num, struct btrfs_key *di_key,
 	int ret;
 	struct send_ctx *sctx = ctx;
 	struct fs_path *p;
-	posix_acl_xattr_header dummy_acl;
+	struct posix_acl_xattr_header dummy_acl;
 
 	p = fs_path_alloc();
 	if (!p)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ef9c55bc7907..8a84ebd8e7cc 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3961,7 +3961,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans,
 			 * i_mapping flags, so that the next fsync won't get
 			 * an outdated io error too.
 			 */
-			btrfs_inode_check_errors(inode);
+			filemap_check_errors(inode->i_mapping);
 			*ordered_io_error = true;
 			break;
 		}
@@ -4198,7 +4198,7 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
 	 * without writing to the log tree and the fsync must report the
 	 * file data write error and not commit the current transaction.
 	 */
-	ret = btrfs_inode_check_errors(inode);
+	ret = filemap_check_errors(inode->i_mapping);
 	if (ret)
 		ctx->io_err = ret;
 process:
diff --git a/fs/buffer.c b/fs/buffer.c
index 9c8eb9b6db6a..7dad8713fac8 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1078,7 +1078,7 @@ grow_buffers(struct block_device *bdev, sector_t block, int size, gfp_t gfp)
 	return grow_dev_page(bdev, block, index, size, sizebits, gfp);
 }
 
-struct buffer_head *
+static struct buffer_head *
 __getblk_slow(struct block_device *bdev, sector_t block,
 	     unsigned size, gfp_t gfp)
 {
@@ -1109,7 +1109,6 @@ __getblk_slow(struct block_device *bdev, sector_t block,
 			free_more_memory();
 	}
 }
-EXPORT_SYMBOL(__getblk_slow);
 
 /*
  * The relationship between dirty buffers and dirty pages:
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index ce5f345d70f5..e7f16a77a22a 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -253,6 +253,8 @@ static void cachefiles_drop_object(struct fscache_object *_object)
 	struct cachefiles_object *object;
 	struct cachefiles_cache *cache;
 	const struct cred *saved_cred;
+	struct inode *inode;
+	blkcnt_t i_blocks = 0;
 
 	ASSERT(_object);
 
@@ -279,6 +281,10 @@ static void cachefiles_drop_object(struct fscache_object *_object)
 		    _object != cache->cache.fsdef
 		    ) {
 			_debug("- retire object OBJ%x", object->fscache.debug_id);
+			inode = d_backing_inode(object->dentry);
+			if (inode)
+				i_blocks = inode->i_blocks;
+
 			cachefiles_begin_secure(cache, &saved_cred);
 			cachefiles_delete_object(cache, object);
 			cachefiles_end_secure(cache, saved_cred);
@@ -292,7 +298,7 @@ static void cachefiles_drop_object(struct fscache_object *_object)
 
 	/* note that the object is now inactive */
 	if (test_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags))
-		cachefiles_mark_object_inactive(cache, object);
+		cachefiles_mark_object_inactive(cache, object, i_blocks);
 
 	dput(object->dentry);
 	object->dentry = NULL;
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 2fcde1a34b7c..cd1effee8a49 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -160,7 +160,8 @@ extern char *cachefiles_cook_key(const u8 *raw, int keylen, uint8_t type);
  * namei.c
  */
 extern void cachefiles_mark_object_inactive(struct cachefiles_cache *cache,
-					    struct cachefiles_object *object);
+					    struct cachefiles_object *object,
+					    blkcnt_t i_blocks);
 extern int cachefiles_delete_object(struct cachefiles_cache *cache,
 				    struct cachefiles_object *object);
 extern int cachefiles_walk_to_object(struct cachefiles_object *parent,
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 3f7c2cd41f8f..c6ee4b5fb7e6 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -261,10 +261,9 @@ requeue:
  * Mark an object as being inactive.
  */
 void cachefiles_mark_object_inactive(struct cachefiles_cache *cache,
-				     struct cachefiles_object *object)
+				     struct cachefiles_object *object,
+				     blkcnt_t i_blocks)
 {
-	blkcnt_t i_blocks = d_backing_inode(object->dentry)->i_blocks;
-
 	write_lock(&cache->active_lock);
 	rb_erase(&object->active_node, &cache->active_nodes);
 	clear_bit(CACHEFILES_OBJECT_ACTIVE, &object->flags);
@@ -707,7 +706,8 @@ mark_active_timed_out:
 
 check_error:
 	_debug("check error %d", ret);
-	cachefiles_mark_object_inactive(cache, object);
+	cachefiles_mark_object_inactive(
+		cache, object, d_backing_inode(object->dentry)->i_blocks);
 release_dentry:
 	dput(object->dentry);
 	object->dentry = NULL;
diff --git a/fs/ceph/acl.c b/fs/ceph/acl.c
index 4f67227f69a5..987044bca1c2 100644
--- a/fs/ceph/acl.c
+++ b/fs/ceph/acl.c
@@ -95,11 +95,9 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			ret = posix_acl_equiv_mode(acl, &new_mode);
-			if (ret < 0)
+			ret = posix_acl_update_mode(inode, &new_mode, &acl);
+			if (ret)
 				goto out;
-			if (ret == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
@@ -127,6 +125,11 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 			goto out_free;
 	}
 
+	if (ceph_snap(inode) != CEPH_NOSNAP) {
+		ret = -EROFS;
+		goto out_free;
+	}
+
 	if (new_mode != old_mode) {
 		newattrs.ia_mode = new_mode;
 		newattrs.ia_valid = ATTR_MODE;
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index dd3a6dbf71eb..082e82dcbaa4 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1905,13 +1905,6 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
 	int inode_dirty_flags = 0;
 	bool lock_snap_rwsem = false;
 
-	if (ceph_snap(inode) != CEPH_NOSNAP)
-		return -EROFS;
-
-	err = inode_change_ok(inode, attr);
-	if (err != 0)
-		return err;
-
 	prealloc_cf = ceph_alloc_cap_flush();
 	if (!prealloc_cf)
 		return -ENOMEM;
@@ -2124,7 +2117,17 @@ out_put:
  */
 int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 {
-	return __ceph_setattr(d_inode(dentry), attr);
+	struct inode *inode = d_inode(dentry);
+	int err;
+
+	if (ceph_snap(inode) != CEPH_NOSNAP)
+		return -EROFS;
+
+	err = setattr_prepare(dentry, attr);
+	if (err != 0)
+		return err;
+
+	return __ceph_setattr(inode, attr);
 }
 
 /*
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 9dcf974acc47..c9c00a862036 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -41,6 +41,16 @@ cifs_uniqueid_to_ino_t(u64 fileid)
 
 }
 
+static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
+{
+	dentry->d_fsdata = (void *) time;
+}
+
+static inline unsigned long cifs_get_time(struct dentry *dentry)
+{
+	return (unsigned long) dentry->d_fsdata;
+}
+
 extern struct file_system_type cifs_fs_type;
 extern const struct address_space_operations cifs_addr_ops;
 extern const struct address_space_operations cifs_addr_ops_smallbuf;
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 95dab43646f0..4ead72a001f9 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -392,8 +392,7 @@ extern int CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 			unsigned int *nbytes, char **buf,
 			int *return_buf_type);
 extern int CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
-			unsigned int *nbytes, const char *buf,
-			const char __user *ubuf, const int long_op);
+			unsigned int *nbytes, const char *buf);
 extern int CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms,
 			unsigned int *nbytes, struct kvec *iov, const int nvec);
 extern int CIFSGetSrvInodeNumber(const unsigned int xid, struct cifs_tcon *tcon,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index d47197ea4ab6..f82d2823622f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1228,7 +1228,6 @@ OldOpenRetry:
 	inc_rfc1001_len(pSMB, count);
 
 	pSMB->ByteCount = cpu_to_le16(count);
-	/* long_op set to 1 to allow for oplock break timeouts */
 	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
 			(struct smb_hdr *)pSMBr, &bytes_returned, 0);
 	cifs_stats_inc(&tcon->stats.cifs_stats.num_opens);
@@ -1768,8 +1767,7 @@ CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms,
 
 int
 CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
-	     unsigned int *nbytes, const char *buf,
-	     const char __user *ubuf, const int long_op)
+	     unsigned int *nbytes, const char *buf)
 {
 	int rc = -EACCES;
 	WRITE_REQ *pSMB = NULL;
@@ -1838,12 +1836,7 @@ CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 		cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4);
 	if (buf)
 		memcpy(pSMB->Data, buf, bytes_sent);
-	else if (ubuf) {
-		if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) {
-			cifs_buf_release(pSMB);
-			return -EFAULT;
-		}
-	} else if (count != 0) {
+	else if (count != 0) {
 		/* No buffer */
 		cifs_buf_release(pSMB);
 		return -EINVAL;
@@ -1867,7 +1860,7 @@ CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms,
 	}
 
 	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
-			 (struct smb_hdr *) pSMBr, &bytes_returned, long_op);
+			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
 	cifs_stats_inc(&tcon->stats.cifs_stats.num_writes);
 	if (rc) {
 		cifs_dbg(FYI, "Send error in write = %d\n", rc);
@@ -3334,7 +3327,7 @@ CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
 #ifdef CONFIG_CIFS_POSIX
 
 /*Convert an Access Control Entry from wire format to local POSIX xattr format*/
-static void cifs_convert_ace(posix_acl_xattr_entry *ace,
+static void cifs_convert_ace(struct posix_acl_xattr_entry *ace,
 			     struct cifs_posix_ace *cifs_ace)
 {
 	/* u8 cifs fields do not need le conversion */
@@ -3358,7 +3351,7 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
 	__u16 count;
 	struct cifs_posix_ace *pACE;
 	struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src;
-	posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt;
+	struct posix_acl_xattr_header *local_acl = (void *)trgt;
 
 	if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION)
 		return -EOPNOTSUPP;
@@ -3396,9 +3389,11 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
 	} else if (size > buflen) {
 		return -ERANGE;
 	} else /* buffer big enough */ {
+		struct posix_acl_xattr_entry *ace = (void *)(local_acl + 1);
+
 		local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
 		for (i = 0; i < count ; i++) {
-			cifs_convert_ace(&local_acl->a_entries[i], pACE);
+			cifs_convert_ace(&ace[i], pACE);
 			pACE++;
 		}
 	}
@@ -3406,7 +3401,7 @@ static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen,
 }
 
 static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace,
-				     const posix_acl_xattr_entry *local_ace)
+				     const struct posix_acl_xattr_entry *local_ace)
 {
 	__u16 rc = 0; /* 0 = ACL converted ok */
 
@@ -3431,7 +3426,7 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
 {
 	__u16 rc = 0;
 	struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data;
-	posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL;
+	struct posix_acl_xattr_header *local_acl = (void *)pACL;
 	int count;
 	int i;
 
@@ -3459,7 +3454,7 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
 	}
 	for (i = 0; i < count; i++) {
 		rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i],
-					&local_acl->a_entries[i]);
+			(struct posix_acl_xattr_entry *)(local_acl + 1));
 		if (rc != 0) {
 			/* ACE not converted */
 			break;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 4716c54dbfc6..789ff1df2d8d 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -40,7 +40,7 @@ renew_parental_timestamps(struct dentry *direntry)
 	/* BB check if there is a way to get the kernel to do this or if we
 	   really need this */
 	do {
-		direntry->d_time = jiffies;
+		cifs_set_time(direntry, jiffies);
 		direntry = direntry->d_parent;
 	} while (!IS_ROOT(direntry));
 }
@@ -802,7 +802,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 
 	} else if (rc == -ENOENT) {
 		rc = 0;
-		direntry->d_time = jiffies;
+		cifs_set_time(direntry, jiffies);
 		d_add(direntry, NULL);
 	/*	if it was once a directory (but how can we tell?) we could do
 		shrink_dcache_parent(direntry); */
@@ -862,7 +862,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
 	if (flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET))
 		return 0;
 
-	if (time_after(jiffies, direntry->d_time + HZ) || !lookupCacheEnabled)
+	if (time_after(jiffies, cifs_get_time(direntry) + HZ) || !lookupCacheEnabled)
 		return 0;
 
 	return 1;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 579e41b350a2..42b99af74e0a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2478,7 +2478,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
 	size_t cur_len;
 	unsigned long nr_pages, num_pages, i;
 	struct cifs_writedata *wdata;
-	struct iov_iter saved_from;
+	struct iov_iter saved_from = *from;
 	loff_t saved_offset = offset;
 	pid_t pid;
 	struct TCP_Server_Info *server;
@@ -2489,7 +2489,6 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
 		pid = current->tgid;
 
 	server = tlink_tcon(open_file->tlink)->ses->server;
-	memcpy(&saved_from, from, sizeof(struct iov_iter));
 
 	do {
 		unsigned int wsize, credits;
@@ -2551,8 +2550,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
 			kref_put(&wdata->refcount,
 				 cifs_uncached_writedata_release);
 			if (rc == -EAGAIN) {
-				memcpy(from, &saved_from,
-				       sizeof(struct iov_iter));
+				*from = saved_from;
 				iov_iter_advance(from, offset - saved_offset);
 				continue;
 			}
@@ -2576,7 +2574,7 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
 	struct cifs_sb_info *cifs_sb;
 	struct cifs_writedata *wdata, *tmp;
 	struct list_head wdata_list;
-	struct iov_iter saved_from;
+	struct iov_iter saved_from = *from;
 	int rc;
 
 	/*
@@ -2597,8 +2595,6 @@ ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from)
 	if (!tcon->ses->server->ops->async_writev)
 		return -ENOSYS;
 
-	memcpy(&saved_from, from, sizeof(struct iov_iter));
-
 	rc = cifs_write_from_iter(iocb->ki_pos, iov_iter_count(from), from,
 				  open_file, cifs_sb, &wdata_list);
 
@@ -2631,13 +2627,11 @@ restart_loop:
 			/* resend call if it's a retryable error */
 			if (rc == -EAGAIN) {
 				struct list_head tmp_list;
-				struct iov_iter tmp_from;
+				struct iov_iter tmp_from = saved_from;
 
 				INIT_LIST_HEAD(&tmp_list);
 				list_del_init(&wdata->list);
 
-				memcpy(&tmp_from, &saved_from,
-				       sizeof(struct iov_iter));
 				iov_iter_advance(&tmp_from,
 						 wdata->offset - iocb->ki_pos);
 
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index b87efd0c92d6..7ab5be7944aa 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1951,7 +1951,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
 
 	cifs_dbg(FYI, "Update attributes: %s inode 0x%p count %d dentry: 0x%p d_time %ld jiffies %ld\n",
 		 full_path, inode, inode->i_count.counter,
-		 dentry, dentry->d_time, jiffies);
+		 dentry, cifs_get_time(dentry), jiffies);
 
 	if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
 		rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
@@ -2154,7 +2154,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
 		attrs->ia_valid |= ATTR_FORCE;
 
-	rc = inode_change_ok(inode, attrs);
+	rc = setattr_prepare(direntry, attrs);
 	if (rc < 0)
 		goto out;
 
@@ -2294,7 +2294,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM)
 		attrs->ia_valid |= ATTR_FORCE;
 
-	rc = inode_change_ok(inode, attrs);
+	rc = setattr_prepare(direntry, attrs);
 	if (rc < 0) {
 		free_xid(xid);
 		return rc;
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 062c2375549a..d031af8d3d4d 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -399,7 +399,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
 	io_parms.offset = 0;
 	io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE;
 
-	rc = CIFSSMBWrite(xid, &io_parms, pbytes_written, pbuf, NULL, 0);
+	rc = CIFSSMBWrite(xid, &io_parms, pbytes_written, pbuf);
 	CIFSSMBClose(xid, tcon, fid.netfid);
 	return rc;
 }
diff --git a/fs/compat.c b/fs/compat.c
index be6e48b0a46c..bd064a2c3550 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -54,20 +54,6 @@
 #include <asm/ioctls.h>
 #include "internal.h"
 
-int compat_log = 1;
-
-int compat_printk(const char *fmt, ...)
-{
-	va_list ap;
-	int ret;
-	if (!compat_log)
-		return 0;
-	va_start(ap, fmt);
-	ret = vprintk(fmt, ap);
-	va_end(ap);
-	return ret;
-}
-
 /*
  * Not all architectures have sys_utime, so implement this in terms
  * of sys_utimes.
@@ -562,7 +548,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
 		goto out;
 
 	ret = -EINVAL;
-	if (nr_segs > UIO_MAXIOV || nr_segs < 0)
+	if (nr_segs > UIO_MAXIOV)
 		goto out;
 	if (nr_segs > fast_segs) {
 		ret = -ENOMEM;
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 9d153b6a1d72..5ffba186f352 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -927,7 +927,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 	}
 	mutex_unlock(&crypt_stat->cs_mutex);
 
-	rc = inode_change_ok(inode, ia);
+	rc = setattr_prepare(dentry, ia);
 	if (rc)
 		goto out;
 	if (ia->ia_valid & ATTR_SIZE) {
diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 9dc4c6dbf3c9..5e68daee5fe4 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1034,7 +1034,7 @@ int exofs_setattr(struct dentry *dentry, struct iattr *iattr)
 	if (unlikely(error))
 		return error;
 
-	error = inode_change_ok(inode, iattr);
+	error = setattr_prepare(dentry, iattr);
 	if (unlikely(error))
 		return error;
 
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 42f1d1814083..e725aa0890e0 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -190,15 +190,11 @@ ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 		case ACL_TYPE_ACCESS:
 			name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
 			if (acl) {
-				error = posix_acl_equiv_mode(acl, &inode->i_mode);
-				if (error < 0)
+				error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+				if (error)
 					return error;
-				else {
-					inode->i_ctime = CURRENT_TIME_SEC;
-					mark_inode_dirty(inode);
-					if (error == 0)
-						acl = NULL;
-				}
+				inode->i_ctime = CURRENT_TIME_SEC;
+				mark_inode_dirty(inode);
 			}
 			break;
 
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 1e72d425fd3b..6831534924e1 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -1652,7 +1652,7 @@ int ext2_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, iattr);
+	error = setattr_prepare(dentry, iattr);
 	if (error)
 		return error;
 
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index c6601a476c02..dfa519979038 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -193,15 +193,11 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
 	case ACL_TYPE_ACCESS:
 		name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
 		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
+			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (error)
 				return error;
-			else {
-				inode->i_ctime = ext4_current_time(inode);
-				ext4_mark_inode_dirty(handle, inode);
-				if (error == 0)
-					acl = NULL;
-			}
+			inode->i_ctime = ext4_current_time(inode);
+			ext4_mark_inode_dirty(handle, inode);
 		}
 		break;
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index cd918823b352..9c064727ed62 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5078,7 +5078,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 	int orphan = 0;
 	const unsigned int ia_valid = attr->ia_valid;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index 1e29630f49c1..6fe23af509e1 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -212,12 +212,10 @@ static int __f2fs_set_acl(struct inode *inode, int type,
 	case ACL_TYPE_ACCESS:
 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
 		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
+			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (error)
 				return error;
 			set_acl_inode(inode, inode->i_mode);
-			if (error == 0)
-				acl = NULL;
 		}
 		break;
 
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index f8b4fe05385d..90455974c2ae 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -680,7 +680,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int err;
 
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 883103593f33..01177ecdeab8 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1525,7 +1525,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	pgoff_t index = 0, end = ULONG_MAX;
 	struct pagevec pvec;
-	int ret2 = 0, ret = 0;
+	int ret2, ret = 0;
 
 	pagevec_init(&pvec, 0);
 
@@ -1554,10 +1554,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
 		cond_resched();
 	}
 
-	if (unlikely(test_and_clear_bit(AS_ENOSPC, &NODE_MAPPING(sbi)->flags)))
-		ret2 = -ENOSPC;
-	if (unlikely(test_and_clear_bit(AS_EIO, &NODE_MAPPING(sbi)->flags)))
-		ret2 = -EIO;
+	ret2 = filemap_check_errors(NODE_MAPPING(sbi));
 	if (!ret)
 		ret = ret2;
 	return ret;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index f70185668832..c09ab4e108e5 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -450,7 +450,7 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
 			attr->ia_valid &= ~TIMES_SET_FLAGS;
 	}
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	attr->ia_valid = ia_valid;
 	if (error) {
 		if (sbi->options.quiet)
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 92b7363dafa9..4afdc3f36470 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -21,6 +21,17 @@
 #include <linux/namei.h>
 #include "fat.h"
 
+static inline unsigned long vfat_d_version(struct dentry *dentry)
+{
+	return (unsigned long) dentry->d_fsdata;
+}
+
+static inline void vfat_d_version_set(struct dentry *dentry,
+				      unsigned long version)
+{
+	dentry->d_fsdata = (void *) version;
+}
+
 /*
  * If new entry was created in the parent, it could create the 8.3
  * alias (the shortname of logname).  So, the parent may have the
@@ -33,7 +44,7 @@ static int vfat_revalidate_shortname(struct dentry *dentry)
 {
 	int ret = 1;
 	spin_lock(&dentry->d_lock);
-	if (dentry->d_time != d_inode(dentry->d_parent)->i_version)
+	if (vfat_d_version(dentry) != d_inode(dentry->d_parent)->i_version)
 		ret = 0;
 	spin_unlock(&dentry->d_lock);
 	return ret;
@@ -759,7 +770,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
 out:
 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
 	if (!inode)
-		dentry->d_time = dir->i_version;
+		vfat_d_version_set(dentry, dir->i_version);
 	return d_splice_alias(inode, dentry);
 error:
 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
@@ -823,7 +834,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
 	clear_nlink(inode);
 	inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
 	fat_detach(inode);
-	dentry->d_time = dir->i_version;
+	vfat_d_version_set(dentry, dir->i_version);
 out:
 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
 
@@ -849,7 +860,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
 	clear_nlink(inode);
 	inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
 	fat_detach(inode);
-	dentry->d_time = dir->i_version;
+	vfat_d_version_set(dentry, dir->i_version);
 out:
 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
 
diff --git a/fs/file.c b/fs/file.c
index 6b1acdfe59da..69d6990e3021 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -23,12 +23,12 @@
 #include <linux/rcupdate.h>
 #include <linux/workqueue.h>
 
-int sysctl_nr_open __read_mostly = 1024*1024;
-int sysctl_nr_open_min = BITS_PER_LONG;
+unsigned int sysctl_nr_open __read_mostly = 1024*1024;
+unsigned int sysctl_nr_open_min = BITS_PER_LONG;
 /* our min() is unusable in constant expressions ;-/ */
 #define __const_min(x, y) ((x) < (y) ? (x) : (y))
-int sysctl_nr_open_max = __const_min(INT_MAX, ~(size_t)0/sizeof(void *)) &
-			 -BITS_PER_LONG;
+unsigned int sysctl_nr_open_max =
+	__const_min(INT_MAX, ~(size_t)0/sizeof(void *)) & -BITS_PER_LONG;
 
 static void *alloc_fdmem(size_t size)
 {
@@ -163,7 +163,7 @@ out:
  * Return <0 error code on error; 1 on successful completion.
  * The files->file_lock should be held on entry, and will be held on exit.
  */
-static int expand_fdtable(struct files_struct *files, int nr)
+static int expand_fdtable(struct files_struct *files, unsigned int nr)
 	__releases(files->file_lock)
 	__acquires(files->file_lock)
 {
@@ -208,7 +208,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
  * expanded and execution may have blocked.
  * The files->file_lock should be held on entry, and will be held on exit.
  */
-static int expand_files(struct files_struct *files, int nr)
+static int expand_files(struct files_struct *files, unsigned int nr)
 	__releases(files->file_lock)
 	__acquires(files->file_lock)
 {
@@ -243,12 +243,12 @@ repeat:
 	return expanded;
 }
 
-static inline void __set_close_on_exec(int fd, struct fdtable *fdt)
+static inline void __set_close_on_exec(unsigned int fd, struct fdtable *fdt)
 {
 	__set_bit(fd, fdt->close_on_exec);
 }
 
-static inline void __clear_close_on_exec(int fd, struct fdtable *fdt)
+static inline void __clear_close_on_exec(unsigned int fd, struct fdtable *fdt)
 {
 	if (test_bit(fd, fdt->close_on_exec))
 		__clear_bit(fd, fdt->close_on_exec);
@@ -268,10 +268,10 @@ static inline void __clear_open_fd(unsigned int fd, struct fdtable *fdt)
 	__clear_bit(fd / BITS_PER_LONG, fdt->full_fds_bits);
 }
 
-static int count_open_files(struct fdtable *fdt)
+static unsigned int count_open_files(struct fdtable *fdt)
 {
-	int size = fdt->max_fds;
-	int i;
+	unsigned int size = fdt->max_fds;
+	unsigned int i;
 
 	/* Find the last open fd */
 	for (i = size / BITS_PER_LONG; i > 0; ) {
@@ -291,7 +291,7 @@ struct files_struct *dup_fd(struct files_struct *oldf, int *errorp)
 {
 	struct files_struct *newf;
 	struct file **old_fds, **new_fds;
-	int open_files, i;
+	unsigned int open_files, i;
 	struct fdtable *old_fdt, *new_fdt;
 
 	*errorp = -ENOMEM;
@@ -391,7 +391,7 @@ static struct fdtable *close_files(struct files_struct * files)
 	 * files structure.
 	 */
 	struct fdtable *fdt = rcu_dereference_raw(files->fdt);
-	int i, j = 0;
+	unsigned int i, j = 0;
 
 	for (;;) {
 		unsigned long set;
@@ -477,11 +477,11 @@ struct files_struct init_files = {
 	.file_lock	= __SPIN_LOCK_UNLOCKED(init_files.file_lock),
 };
 
-static unsigned long find_next_fd(struct fdtable *fdt, unsigned long start)
+static unsigned int find_next_fd(struct fdtable *fdt, unsigned int start)
 {
-	unsigned long maxfd = fdt->max_fds;
-	unsigned long maxbit = maxfd / BITS_PER_LONG;
-	unsigned long bitbit = start / BITS_PER_LONG;
+	unsigned int maxfd = fdt->max_fds;
+	unsigned int maxbit = maxfd / BITS_PER_LONG;
+	unsigned int bitbit = start / BITS_PER_LONG;
 
 	bitbit = find_next_zero_bit(fdt->full_fds_bits, maxbit, bitbit) * BITS_PER_LONG;
 	if (bitbit > maxfd)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index f7c84ab835ca..a430c19607f4 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1604,9 +1604,10 @@ int fuse_flush_times(struct inode *inode, struct fuse_file *ff)
  * vmtruncate() doesn't allow for this case, so do the rlimit checking
  * and the actual truncation by hand.
  */
-int fuse_do_setattr(struct inode *inode, struct iattr *attr,
+int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
 		    struct file *file)
 {
+	struct inode *inode = d_inode(dentry);
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	FUSE_ARGS(args);
@@ -1621,7 +1622,7 @@ int fuse_do_setattr(struct inode *inode, struct iattr *attr,
 	if (!fc->default_permissions)
 		attr->ia_valid |= ATTR_FORCE;
 
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
@@ -1758,7 +1759,7 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
 	if (!attr->ia_valid)
 		return 0;
 
-	ret = fuse_do_setattr(inode, attr, file);
+	ret = fuse_do_setattr(entry, attr, file);
 	if (!ret) {
 		/*
 		 * If filesystem supports acls it may have updated acl xattrs in
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index b7beb67bf005..abc66a6237fd 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2810,7 +2810,7 @@ static void fuse_do_truncate(struct file *file)
 	attr.ia_file = file;
 	attr.ia_valid |= ATTR_FILE;
 
-	fuse_do_setattr(inode, &attr, file);
+	fuse_do_setattr(file_dentry(file), &attr, file);
 }
 
 static inline loff_t fuse_round_up(loff_t off)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 24ada5dc4dae..0dfbb136e59a 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -961,7 +961,7 @@ bool fuse_write_update_size(struct inode *inode, loff_t pos);
 int fuse_flush_times(struct inode *inode, struct fuse_file *ff);
 int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);
 
-int fuse_do_setattr(struct inode *inode, struct iattr *attr,
+int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
 		    struct file *file);
 
 void fuse_set_initialized(struct fuse_conn *fc);
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 363ba9e9d8d0..2524807ee070 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -92,17 +92,11 @@ int __gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	if (type == ACL_TYPE_ACCESS) {
 		umode_t mode = inode->i_mode;
 
-		error = posix_acl_equiv_mode(acl, &mode);
-		if (error < 0)
+		error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (error)
 			return error;
-
-		if (error == 0)
-			acl = NULL;
-
-		if (mode != inode->i_mode) {
-			inode->i_mode = mode;
+		if (mode != inode->i_mode)
 			mark_inode_dirty(inode);
-		}
 	}
 
 	if (acl) {
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index fb3a810b506f..7efd1d19d325 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1936,7 +1936,7 @@ static int gfs2_setattr(struct dentry *dentry, struct iattr *attr)
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
 		goto out;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		goto out;
 
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index c6a32415735b..09cce23864da 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -605,7 +605,7 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
 	struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
 	int error;
 
-	error = inode_change_ok(inode, attr); /* basic permission checks */
+	error = setattr_prepare(dentry, attr); /* basic permission checks */
 	if (error)
 		return error;
 
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 19462d773fe2..c43ef397a3aa 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -245,7 +245,7 @@ static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/hfsplus/posix_acl.c b/fs/hfsplus/posix_acl.c
index ab7ea2506b4d..9b92058a1240 100644
--- a/fs/hfsplus/posix_acl.c
+++ b/fs/hfsplus/posix_acl.c
@@ -65,8 +65,8 @@ int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
 	case ACL_TYPE_ACCESS:
 		xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			err = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (err < 0)
+			err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (err)
 				return err;
 		}
 		err = 0;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 90e46cd752fe..44aa96ba1df8 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -812,7 +812,7 @@ static int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
 
 	int fd = HOSTFS_I(inode)->fd;
 
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index d3bcdd975700..b3be1b5a62e2 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -189,6 +189,11 @@ static sector_t _hpfs_bmap(struct address_space *mapping, sector_t block)
 	return generic_block_bmap(mapping, block, hpfs_get_block);
 }
 
+static int hpfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len)
+{
+	return generic_block_fiemap(inode, fieinfo, start, len, hpfs_get_block);
+}
+
 const struct address_space_operations hpfs_aops = {
 	.readpage = hpfs_readpage,
 	.writepage = hpfs_writepage,
@@ -214,4 +219,5 @@ const struct file_operations hpfs_file_ops =
 const struct inode_operations hpfs_file_iops =
 {
 	.setattr	= hpfs_setattr,
+	.fiemap		= hpfs_fiemap,
 };
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index 1f3c6d76200b..b9c724ed1e7e 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -273,7 +273,7 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr)
 	if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size)
 		goto out_unlock;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		goto out_unlock;
 
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 7337cac29e9e..2c0c3a017a6a 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -670,7 +670,7 @@ static int hugetlbfs_setattr(struct dentry *dentry, struct iattr *attr)
 
 	BUG_ON(!inode);
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/inode.c b/fs/inode.c
index 7e3ef3af3db9..a3c7ba7f6b59 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1021,13 +1021,17 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
 {
 	struct hlist_head *head = inode_hashtable + hash(sb, hashval);
 	struct inode *inode;
-
+again:
 	spin_lock(&inode_hash_lock);
 	inode = find_inode(sb, head, test, data);
 	spin_unlock(&inode_hash_lock);
 
 	if (inode) {
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
 		return inode;
 	}
 
@@ -1064,6 +1068,10 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
 		destroy_inode(inode);
 		inode = old;
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
 	}
 	return inode;
 
@@ -1091,12 +1099,16 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino)
 {
 	struct hlist_head *head = inode_hashtable + hash(sb, ino);
 	struct inode *inode;
-
+again:
 	spin_lock(&inode_hash_lock);
 	inode = find_inode_fast(sb, head, ino);
 	spin_unlock(&inode_hash_lock);
 	if (inode) {
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
 		return inode;
 	}
 
@@ -1131,6 +1143,10 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino)
 		destroy_inode(inode);
 		inode = old;
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
 	}
 	return inode;
 }
@@ -1266,10 +1282,16 @@ EXPORT_SYMBOL(ilookup5_nowait);
 struct inode *ilookup5(struct super_block *sb, unsigned long hashval,
 		int (*test)(struct inode *, void *), void *data)
 {
-	struct inode *inode = ilookup5_nowait(sb, hashval, test, data);
-
-	if (inode)
+	struct inode *inode;
+again:
+	inode = ilookup5_nowait(sb, hashval, test, data);
+	if (inode) {
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
+	}
 	return inode;
 }
 EXPORT_SYMBOL(ilookup5);
@@ -1286,13 +1308,18 @@ struct inode *ilookup(struct super_block *sb, unsigned long ino)
 {
 	struct hlist_head *head = inode_hashtable + hash(sb, ino);
 	struct inode *inode;
-
+again:
 	spin_lock(&inode_hash_lock);
 	inode = find_inode_fast(sb, head, ino);
 	spin_unlock(&inode_hash_lock);
 
-	if (inode)
+	if (inode) {
 		wait_on_inode(inode);
+		if (unlikely(inode_unhashed(inode))) {
+			iput(inode);
+			goto again;
+		}
+	}
 	return inode;
 }
 EXPORT_SYMBOL(ilookup);
@@ -1536,16 +1563,36 @@ sector_t bmap(struct inode *inode, sector_t block)
 EXPORT_SYMBOL(bmap);
 
 /*
+ * Update times in overlayed inode from underlying real inode
+ */
+static void update_ovl_inode_times(struct dentry *dentry, struct inode *inode,
+			       bool rcu)
+{
+	if (!rcu) {
+		struct inode *realinode = d_real_inode(dentry);
+
+		if (unlikely(inode != realinode) &&
+		    (!timespec_equal(&inode->i_mtime, &realinode->i_mtime) ||
+		     !timespec_equal(&inode->i_ctime, &realinode->i_ctime))) {
+			inode->i_mtime = realinode->i_mtime;
+			inode->i_ctime = realinode->i_ctime;
+		}
+	}
+}
+
+/*
  * With relative atime, only update atime if the previous atime is
  * earlier than either the ctime or mtime or if at least a day has
  * passed since the last atime update.
  */
-static int relatime_need_update(struct vfsmount *mnt, struct inode *inode,
-			     struct timespec now)
+static int relatime_need_update(const struct path *path, struct inode *inode,
+				struct timespec now, bool rcu)
 {
 
-	if (!(mnt->mnt_flags & MNT_RELATIME))
+	if (!(path->mnt->mnt_flags & MNT_RELATIME))
 		return 1;
+
+	update_ovl_inode_times(path->dentry, inode, rcu);
 	/*
 	 * Is mtime younger than atime? If yes, update atime:
 	 */
@@ -1612,7 +1659,8 @@ static int update_time(struct inode *inode, struct timespec *time, int flags)
  *	This function automatically handles read only file systems and media,
  *	as well as the "noatime" flag and inode specific "noatime" markers.
  */
-bool atime_needs_update(const struct path *path, struct inode *inode)
+bool __atime_needs_update(const struct path *path, struct inode *inode,
+			  bool rcu)
 {
 	struct vfsmount *mnt = path->mnt;
 	struct timespec now;
@@ -1638,7 +1686,7 @@ bool atime_needs_update(const struct path *path, struct inode *inode)
 
 	now = current_fs_time(inode->i_sb);
 
-	if (!relatime_need_update(mnt, inode, now))
+	if (!relatime_need_update(path, inode, now, rcu))
 		return false;
 
 	if (timespec_equal(&inode->i_atime, &now))
@@ -1653,7 +1701,7 @@ void touch_atime(const struct path *path)
 	struct inode *inode = d_inode(path->dentry);
 	struct timespec now;
 
-	if (!atime_needs_update(path, inode))
+	if (!__atime_needs_update(path, inode, false))
 		return;
 
 	if (!sb_start_write_trylock(inode->i_sb))
diff --git a/fs/internal.h b/fs/internal.h
index 859178692ce4..f4da3341b4a3 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -121,6 +121,15 @@ extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
 extern void inode_add_lru(struct inode *inode);
 extern int dentry_needs_remove_privs(struct dentry *dentry);
 
+extern bool __atime_needs_update(const struct path *, struct inode *, bool);
+static inline bool atime_needs_update_rcu(const struct path *path,
+					  struct inode *inode)
+{
+	return __atime_needs_update(path, inode, true);
+}
+
+extern bool atime_needs_update_rcu(const struct path *, struct inode *);
+
 /*
  * fs-writeback.c
  */
@@ -157,7 +166,7 @@ extern void mnt_pin_kill(struct mount *m);
 /*
  * fs/nsfs.c
  */
-extern struct dentry_operations ns_dentry_operations;
+extern const struct dentry_operations ns_dentry_operations;
 
 /*
  * fs/ioctl.c
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index bc2693d56298..2a0f2a1044c1 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -233,9 +233,10 @@ int jffs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	case ACL_TYPE_ACCESS:
 		xprefix = JFFS2_XPREFIX_ACL_ACCESS;
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			rc = posix_acl_equiv_mode(acl, &mode);
-			if (rc < 0)
+			umode_t mode;
+
+			rc = posix_acl_update_mode(inode, &mode, &acl);
+			if (rc)
 				return rc;
 			if (inode->i_mode != mode) {
 				struct iattr attr;
@@ -247,8 +248,6 @@ int jffs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 				if (rc < 0)
 					return rc;
 			}
-			if (rc == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index ae2ebb26b446..3773b24b4db0 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -193,7 +193,7 @@ int jffs2_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct inode *inode = d_inode(dentry);
 	int rc;
 
-	rc = inode_change_ok(inode, iattr);
+	rc = setattr_prepare(dentry, iattr);
 	if (rc)
 		return rc;
 
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 21fa92ba2c19..3a1e1554a4e3 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -78,13 +78,11 @@ static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
 	case ACL_TYPE_ACCESS:
 		ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			rc = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (rc < 0)
+			rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (rc)
 				return rc;
 			inode->i_ctime = CURRENT_TIME;
 			mark_inode_dirty(inode);
-			if (rc == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 7f1a585a0a94..cf62037b8a04 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -103,7 +103,7 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct inode *inode = d_inode(dentry);
 	int rc;
 
-	rc = inode_change_ok(inode, iattr);
+	rc = setattr_prepare(dentry, iattr);
 	if (rc)
 		return rc;
 
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 63b925d5ba1e..df21f5b75549 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -122,7 +122,7 @@ int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr)
 		return -EINVAL;
 
 	mutex_lock(&kernfs_mutex);
-	error = inode_change_ok(inode, iattr);
+	error = setattr_prepare(dentry, iattr);
 	if (error)
 		goto out;
 
diff --git a/fs/libfs.c b/fs/libfs.c
index 74dc8b9e7f53..2b3c3ae70153 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -394,7 +394,7 @@ int simple_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, iattr);
+	error = setattr_prepare(dentry, iattr);
 	if (error)
 		return error;
 
diff --git a/fs/locks.c b/fs/locks.c
index 90ec67108b22..8cc218d7a039 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -138,6 +138,11 @@
 #define IS_LEASE(fl)	(fl->fl_flags & (FL_LEASE|FL_DELEG|FL_LAYOUT))
 #define IS_OFDLCK(fl)	(fl->fl_flags & FL_OFDLCK)
 
+static inline bool is_remote_lock(struct file *filp)
+{
+	return likely(!(filp->f_path.dentry->d_sb->s_flags & MS_NOREMOTELOCK));
+}
+
 static bool lease_breaking(struct file_lock *fl)
 {
 	return fl->fl_flags & (FL_UNLOCK_PENDING | FL_DOWNGRADE_PENDING);
@@ -806,7 +811,7 @@ posix_test_lock(struct file *filp, struct file_lock *fl)
 {
 	struct file_lock *cfl;
 	struct file_lock_context *ctx;
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 
 	ctx = smp_load_acquire(&inode->i_flctx);
 	if (!ctx || list_empty_careful(&ctx->flc_posix)) {
@@ -1211,7 +1216,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request,
 int posix_lock_file(struct file *filp, struct file_lock *fl,
 			struct file_lock *conflock)
 {
-	return posix_lock_inode(file_inode(filp), fl, conflock);
+	return posix_lock_inode(locks_inode(filp), fl, conflock);
 }
 EXPORT_SYMBOL(posix_lock_file);
 
@@ -1251,7 +1256,7 @@ static int posix_lock_inode_wait(struct inode *inode, struct file_lock *fl)
 int locks_mandatory_locked(struct file *file)
 {
 	int ret;
-	struct inode *inode = file_inode(file);
+	struct inode *inode = locks_inode(file);
 	struct file_lock_context *ctx;
 	struct file_lock *fl;
 
@@ -1597,7 +1602,7 @@ EXPORT_SYMBOL(lease_get_mtime);
 int fcntl_getlease(struct file *filp)
 {
 	struct file_lock *fl;
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 	struct file_lock_context *ctx;
 	int type = F_UNLCK;
 	LIST_HEAD(dispose);
@@ -1605,7 +1610,7 @@ int fcntl_getlease(struct file *filp)
 	ctx = smp_load_acquire(&inode->i_flctx);
 	if (ctx && !list_empty_careful(&ctx->flc_lease)) {
 		spin_lock(&ctx->flc_lock);
-		time_out_leases(file_inode(filp), &dispose);
+		time_out_leases(inode, &dispose);
 		list_for_each_entry(fl, &ctx->flc_lease, fl_list) {
 			if (fl->fl_file != filp)
 				continue;
@@ -1638,7 +1643,8 @@ check_conflicting_open(const struct dentry *dentry, const long arg, int flags)
 	if (flags & FL_LAYOUT)
 		return 0;
 
-	if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
+	if ((arg == F_RDLCK) &&
+	    (atomic_read(&d_real_inode(dentry)->i_writecount) > 0))
 		return -EAGAIN;
 
 	if ((arg == F_WRLCK) && ((d_count(dentry) > 1) ||
@@ -1653,7 +1659,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr
 {
 	struct file_lock *fl, *my_fl = NULL, *lease;
 	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = dentry->d_inode;
 	struct file_lock_context *ctx;
 	bool is_deleg = (*flp)->fl_flags & FL_DELEG;
 	int error;
@@ -1769,7 +1775,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
 {
 	int error = -EAGAIN;
 	struct file_lock *fl, *victim = NULL;
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 	struct file_lock_context *ctx;
 	LIST_HEAD(dispose);
 
@@ -1811,7 +1817,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
 int generic_setlease(struct file *filp, long arg, struct file_lock **flp,
 			void **priv)
 {
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 	int error;
 
 	if ((!uid_eq(current_fsuid(), inode->i_uid)) && !capable(CAP_LEASE))
@@ -1859,7 +1865,7 @@ EXPORT_SYMBOL(generic_setlease);
 int
 vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv)
 {
-	if (filp->f_op->setlease)
+	if (filp->f_op->setlease && is_remote_lock(filp))
 		return filp->f_op->setlease(filp, arg, lease, priv);
 	else
 		return generic_setlease(filp, arg, lease, priv);
@@ -2008,7 +2014,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
 	if (error)
 		goto out_free;
 
-	if (f.file->f_op->flock)
+	if (f.file->f_op->flock && is_remote_lock(f.file))
 		error = f.file->f_op->flock(f.file,
 					  (can_sleep) ? F_SETLKW : F_SETLK,
 					  lock);
@@ -2034,7 +2040,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
  */
 int vfs_test_lock(struct file *filp, struct file_lock *fl)
 {
-	if (filp->f_op->lock)
+	if (filp->f_op->lock && is_remote_lock(filp))
 		return filp->f_op->lock(filp, F_GETLK, fl);
 	posix_test_lock(filp, fl);
 	return 0;
@@ -2158,7 +2164,7 @@ out:
  */
 int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, struct file_lock *conf)
 {
-	if (filp->f_op->lock)
+	if (filp->f_op->lock && is_remote_lock(filp))
 		return filp->f_op->lock(filp, cmd, fl);
 	else
 		return posix_lock_file(filp, fl, conf);
@@ -2220,7 +2226,7 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd,
 	if (file_lock == NULL)
 		return -ENOLCK;
 
-	inode = file_inode(filp);
+	inode = locks_inode(filp);
 
 	/*
 	 * This might block, so we do it before checking the inode.
@@ -2372,7 +2378,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd,
 	if (copy_from_user(&flock, l, sizeof(flock)))
 		goto out;
 
-	inode = file_inode(filp);
+	inode = locks_inode(filp);
 
 	/* Don't allow mandatory locks on files that may be memory mapped
 	 * and shared.
@@ -2455,6 +2461,7 @@ out:
 void locks_remove_posix(struct file *filp, fl_owner_t owner)
 {
 	int error;
+	struct inode *inode = locks_inode(filp);
 	struct file_lock lock;
 	struct file_lock_context *ctx;
 
@@ -2463,7 +2470,7 @@ void locks_remove_posix(struct file *filp, fl_owner_t owner)
 	 * posix_lock_file().  Another process could be setting a lock on this
 	 * file at the same time, but we wouldn't remove that lock anyway.
 	 */
-	ctx =  smp_load_acquire(&file_inode(filp)->i_flctx);
+	ctx =  smp_load_acquire(&inode->i_flctx);
 	if (!ctx || list_empty(&ctx->flc_posix))
 		return;
 
@@ -2481,7 +2488,7 @@ void locks_remove_posix(struct file *filp, fl_owner_t owner)
 
 	if (lock.fl_ops && lock.fl_ops->fl_release_private)
 		lock.fl_ops->fl_release_private(&lock);
-	trace_locks_remove_posix(file_inode(filp), &lock, error);
+	trace_locks_remove_posix(inode, &lock, error);
 }
 
 EXPORT_SYMBOL(locks_remove_posix);
@@ -2498,12 +2505,12 @@ locks_remove_flock(struct file *filp, struct file_lock_context *flctx)
 		.fl_type = F_UNLCK,
 		.fl_end = OFFSET_MAX,
 	};
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 
 	if (list_empty(&flctx->flc_flock))
 		return;
 
-	if (filp->f_op->flock)
+	if (filp->f_op->flock && is_remote_lock(filp))
 		filp->f_op->flock(filp, F_SETLKW, &fl);
 	else
 		flock_lock_inode(inode, &fl);
@@ -2537,7 +2544,7 @@ void locks_remove_file(struct file *filp)
 {
 	struct file_lock_context *ctx;
 
-	ctx = smp_load_acquire(&file_inode(filp)->i_flctx);
+	ctx = smp_load_acquire(&locks_inode(filp)->i_flctx);
 	if (!ctx)
 		return;
 
@@ -2581,7 +2588,7 @@ EXPORT_SYMBOL(posix_unblock_lock);
  */
 int vfs_cancel_lock(struct file *filp, struct file_lock *fl)
 {
-	if (filp->f_op->lock)
+	if (filp->f_op->lock && is_remote_lock(filp))
 		return filp->f_op->lock(filp, F_CANCELLK, fl);
 	return 0;
 }
@@ -2620,7 +2627,7 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl,
 		fl_pid = fl->fl_pid;
 
 	if (fl->fl_file != NULL)
-		inode = file_inode(fl->fl_file);
+		inode = locks_inode(fl->fl_file);
 
 	seq_printf(f, "%lld:%s ", id, pfx);
 	if (IS_POSIX(fl)) {
@@ -2726,7 +2733,7 @@ static void __show_fd_locks(struct seq_file *f,
 void show_fd_locks(struct seq_file *f,
 		  struct file *filp, struct files_struct *files)
 {
-	struct inode *inode = file_inode(filp);
+	struct inode *inode = locks_inode(filp);
 	struct file_lock_context *ctx;
 	int id = 0;
 
diff --git a/fs/logfs/file.c b/fs/logfs/file.c
index f01ddfb1a03b..5d9fe466bbc9 100644
--- a/fs/logfs/file.c
+++ b/fs/logfs/file.c
@@ -244,7 +244,7 @@ static int logfs_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int err = 0;
 
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
diff --git a/fs/minix/file.c b/fs/minix/file.c
index 94f0eb9a6e2c..a6a4797aa0d4 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -26,7 +26,7 @@ static int minix_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/namei.c b/fs/namei.c
index adb04146df09..4bbcae1ba58e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1015,7 +1015,7 @@ const char *get_link(struct nameidata *nd)
 	if (!(nd->flags & LOOKUP_RCU)) {
 		touch_atime(&last->link);
 		cond_resched();
-	} else if (atime_needs_update(&last->link, inode)) {
+	} else if (atime_needs_update_rcu(&last->link, inode)) {
 		if (unlikely(unlazy_walk(nd, NULL, 0)))
 			return ERR_PTR(-ECHILD);
 		touch_atime(&last->link);
diff --git a/fs/namespace.c b/fs/namespace.c
index db1b5a38864e..58aca9c931ac 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2743,7 +2743,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 
 	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
-		   MS_STRICTATIME);
+		   MS_STRICTATIME | MS_NOREMOTELOCK);
 
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 1af15fcbe57b..f6cf4c7e92b1 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -884,7 +884,7 @@ int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
 	/* ageing the dentry to force validation */
 	ncp_age_dentry(server, dentry);
 
-	result = inode_change_ok(inode, attr);
+	result = setattr_prepare(dentry, attr);
 	if (result < 0)
 		goto out;
 
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index e9214768cde9..08188743db53 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -74,10 +74,10 @@ nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
 	 * which only requires access, and "set-[ac]time-to-X" which
 	 * requires ownership.
 	 * So if it looks like it might be "set both to the same time which
-	 * is close to now", and if inode_change_ok fails, then we
+	 * is close to now", and if setattr_prepare fails, then we
 	 * convert to "set to now" instead of "set to explicit time"
 	 *
-	 * We only call inode_change_ok as the last test as technically
+	 * We only call setattr_prepare as the last test as technically
 	 * it is not an interface that we should be using.
 	 */
 #define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
@@ -92,17 +92,15 @@ nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
 		 * request is.  We require it be within 30 minutes of now.
 		 */
 		time_t delta = iap->ia_atime.tv_sec - get_seconds();
-		struct inode *inode;
 
 		nfserr = fh_verify(rqstp, fhp, 0, NFSD_MAY_NOP);
 		if (nfserr)
 			goto done;
-		inode = d_inode(fhp->fh_dentry);
 
 		if (delta < 0)
 			delta = -delta;
 		if (delta < MAX_TOUCH_TIME_ERROR &&
-		    inode_change_ok(inode, iap) != 0) {
+		    setattr_prepare(fhp->fh_dentry, iap) != 0) {
 			/*
 			 * Turn off ATTR_[AM]TIME_SET but leave ATTR_[AM]TIME.
 			 * This will cause notify_change to set these times
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index af04f553d7c9..402c325e0467 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -829,7 +829,7 @@ int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct super_block *sb = inode->i_sb;
 	int err;
 
-	err = inode_change_ok(inode, iattr);
+	err = setattr_prepare(dentry, iattr);
 	if (err)
 		return err;
 
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index f548629dfaac..bf72a2c58b75 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1850,7 +1850,7 @@ again:
 		 * pages being swapped out between us bringing them into memory
 		 * and doing the actual copying.
 		 */
-		if (unlikely(iov_iter_fault_in_multipages_readable(i, bytes))) {
+		if (unlikely(iov_iter_fault_in_readable(i, bytes))) {
 			status = -EFAULT;
 			break;
 		}
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index e01287c964a8..9d7a44872df5 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -2893,7 +2893,7 @@ int ntfs_setattr(struct dentry *dentry, struct iattr *attr)
 	int err;
 	unsigned int ia_valid = attr->ia_valid;
 
-	err = inode_change_ok(vi, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		goto out;
 	/* We do not support NTFS ACLs yet. */
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index 2162434728c0..164307b99405 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -241,13 +241,11 @@ int ocfs2_set_acl(handle_t *handle,
 	case ACL_TYPE_ACCESS:
 		name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			ret = posix_acl_equiv_mode(acl, &mode);
-			if (ret < 0)
-				return ret;
+			umode_t mode;
 
-			if (ret == 0)
-				acl = NULL;
+			ret = posix_acl_update_mode(inode, &mode, &acl);
+			if (ret)
+				return ret;
 
 			ret = ocfs2_acl_set_mode(inode, di_bh,
 						 handle, mode);
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 354cdf9714aa..a0c3e03f9cd3 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -211,7 +211,7 @@ static int dlmfs_file_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 
 	attr->ia_valid &= ~ATTR_SIZE;
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8f91639f8364..5e1901546868 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1155,7 +1155,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 	if (!(attr->ia_valid & OCFS2_VALID_ATTRS))
 		return 0;
 
-	status = inode_change_ok(inode, attr);
+	status = setattr_prepare(dentry, attr);
 	if (status)
 		return status;
 
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index d9e26cfbb793..bf83e6644333 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -349,7 +349,7 @@ static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/open.c b/fs/open.c
index 4fd6e256f4f4..8aeb08bb278b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -68,6 +68,7 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
 long vfs_truncate(const struct path *path, loff_t length)
 {
 	struct inode *inode;
+	struct dentry *upperdentry;
 	long error;
 
 	inode = path->dentry->d_inode;
@@ -90,7 +91,17 @@ long vfs_truncate(const struct path *path, loff_t length)
 	if (IS_APPEND(inode))
 		goto mnt_drop_write_and_out;
 
-	error = get_write_access(inode);
+	/*
+	 * If this is an overlayfs then do as if opening the file so we get
+	 * write access on the upper inode, not on the overlay inode.  For
+	 * non-overlay filesystems d_real() is an identity function.
+	 */
+	upperdentry = d_real(path->dentry, NULL, O_WRONLY);
+	error = PTR_ERR(upperdentry);
+	if (IS_ERR(upperdentry))
+		goto mnt_drop_write_and_out;
+
+	error = get_write_access(upperdentry->d_inode);
 	if (error)
 		goto mnt_drop_write_and_out;
 
@@ -109,7 +120,7 @@ long vfs_truncate(const struct path *path, loff_t length)
 		error = do_truncate(path->dentry, length, 0, NULL);
 
 put_write_and_out:
-	put_write_access(inode);
+	put_write_access(upperdentry->d_inode);
 mnt_drop_write_and_out:
 	mnt_drop_write(path->mnt);
 out:
@@ -726,7 +737,7 @@ static int do_dentry_open(struct file *f,
 	if (error)
 		goto cleanup_all;
 
-	error = break_lease(inode, f->f_flags);
+	error = break_lease(locks_inode(f), f->f_flags);
 	if (error)
 		goto cleanup_all;
 
diff --git a/fs/orangefs/acl.c b/fs/orangefs/acl.c
index 28f2195cd798..7a3754488312 100644
--- a/fs/orangefs/acl.c
+++ b/fs/orangefs/acl.c
@@ -73,14 +73,11 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			umode_t mode = inode->i_mode;
-			/*
-			 * can we represent this with the traditional file
-			 * mode permission bits?
-			 */
-			error = posix_acl_equiv_mode(acl, &mode);
-			if (error < 0) {
-				gossip_err("%s: posix_acl_equiv_mode err: %d\n",
+			umode_t mode;
+
+			error = posix_acl_update_mode(inode, &mode, &acl);
+			if (error) {
+				gossip_err("%s: posix_acl_update_mode err: %d\n",
 					   __func__,
 					   error);
 				return error;
@@ -90,8 +87,6 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 				SetModeFlag(orangefs_inode);
 			inode->i_mode = mode;
 			mark_inode_dirty_sync(inode);
-			if (error == 0)
-				acl = NULL;
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff --git a/fs/orangefs/dir.c b/fs/orangefs/dir.c
index 324f0af40d7b..284373a57a08 100644
--- a/fs/orangefs/dir.c
+++ b/fs/orangefs/dir.c
@@ -177,8 +177,8 @@ static int orangefs_readdir(struct file *file, struct dir_context *ctx)
 	}
 
 	gossip_debug(GOSSIP_DIR_DEBUG,
-		     "orangefs_readdir called on %s (pos=%llu)\n",
-		     dentry->d_name.name, llu(pos));
+		     "orangefs_readdir called on %pd (pos=%llu)\n",
+		     dentry, llu(pos));
 
 	memset(&readdir_response, 0, sizeof(readdir_response));
 
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 3386886596d6..2aa088ab713b 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -611,8 +611,8 @@ static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma)
 static int orangefs_file_release(struct inode *inode, struct file *file)
 {
 	gossip_debug(GOSSIP_FILE_DEBUG,
-		     "orangefs_file_release: called on %s\n",
-		     file->f_path.dentry->d_name.name);
+		     "orangefs_file_release: called on %pD\n",
+		     file);
 
 	orangefs_flush_inode(inode);
 
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 28a0557a69be..c83846fb9b14 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -129,8 +129,8 @@ static ssize_t orangefs_direct_IO(struct kiocb *iocb,
 				  struct iov_iter *iter)
 {
 	gossip_debug(GOSSIP_INODE_DEBUG,
-		     "orangefs_direct_IO: %s\n",
-		     iocb->ki_filp->f_path.dentry->d_name.name);
+		     "orangefs_direct_IO: %pD\n",
+		     iocb->ki_filp);
 
 	return -EINVAL;
 }
@@ -216,10 +216,10 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct inode *inode = dentry->d_inode;
 
 	gossip_debug(GOSSIP_INODE_DEBUG,
-		     "orangefs_setattr: called on %s\n",
-		     dentry->d_name.name);
+		     "orangefs_setattr: called on %pd\n",
+		     dentry);
 
-	ret = inode_change_ok(inode, iattr);
+	ret = setattr_prepare(dentry, iattr);
 	if (ret)
 		goto out;
 
@@ -259,8 +259,8 @@ int orangefs_getattr(struct vfsmount *mnt,
 	struct orangefs_inode_s *orangefs_inode = NULL;
 
 	gossip_debug(GOSSIP_INODE_DEBUG,
-		     "orangefs_getattr: called on %s\n",
-		     dentry->d_name.name);
+		     "orangefs_getattr: called on %pd\n",
+		     dentry);
 
 	ret = orangefs_inode_getattr(inode, 0, 0);
 	if (ret == 0) {
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index 35269e31de92..0e34fcfa4d51 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -24,9 +24,9 @@ static int orangefs_create(struct inode *dir,
 	struct inode *inode;
 	int ret;
 
-	gossip_debug(GOSSIP_NAME_DEBUG, "%s: %s\n",
+	gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n",
 		     __func__,
-		     dentry->d_name.name);
+		     dentry);
 
 	new_op = op_alloc(ORANGEFS_VFS_OP_CREATE);
 	if (!new_op)
@@ -43,9 +43,9 @@ static int orangefs_create(struct inode *dir,
 	ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "%s: %s: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
+		     "%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
 		     __func__,
-		     dentry->d_name.name,
+		     dentry,
 		     &new_op->downcall.resp.create.refn.khandle,
 		     new_op->downcall.resp.create.refn.fs_id,
 		     new_op,
@@ -57,18 +57,18 @@ static int orangefs_create(struct inode *dir,
 	inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0,
 				&new_op->downcall.resp.create.refn);
 	if (IS_ERR(inode)) {
-		gossip_err("%s: Failed to allocate inode for file :%s:\n",
+		gossip_err("%s: Failed to allocate inode for file :%pd:\n",
 			   __func__,
-			   dentry->d_name.name);
+			   dentry);
 		ret = PTR_ERR(inode);
 		goto out;
 	}
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "%s: Assigned inode :%pU: for file :%s:\n",
+		     "%s: Assigned inode :%pU: for file :%pd:\n",
 		     __func__,
 		     get_khandle_from_ino(inode),
-		     dentry->d_name.name);
+		     dentry);
 
 	d_instantiate(dentry, inode);
 	unlock_new_inode(inode);
@@ -76,9 +76,9 @@ static int orangefs_create(struct inode *dir,
 	ORANGEFS_I(inode)->getattr_time = jiffies - 1;
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "%s: dentry instantiated for %s\n",
+		     "%s: dentry instantiated for %pd\n",
 		     __func__,
-		     dentry->d_name.name);
+		     dentry);
 
 	SetMtimeFlag(parent);
 	dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb);
@@ -87,9 +87,9 @@ static int orangefs_create(struct inode *dir,
 out:
 	op_release(new_op);
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "%s: %s: returning %d\n",
+		     "%s: %pd: returning %d\n",
 		     __func__,
-		     dentry->d_name.name,
+		     dentry,
 		     ret);
 	return ret;
 }
@@ -115,8 +115,8 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
 	 * -EEXIST on O_EXCL opens, which is broken if we skip this lookup
 	 * in the create path)
 	 */
-	gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %s\n",
-		     __func__, dentry->d_name.name);
+	gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
+		     __func__, dentry);
 
 	if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
 		return ERR_PTR(-ENAMETOOLONG);
@@ -169,9 +169,9 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
 
 			gossip_debug(GOSSIP_NAME_DEBUG,
 				     "orangefs_lookup: Adding *negative* dentry "
-				     "%p for %s\n",
+				     "%p for %pd\n",
 				     dentry,
-				     dentry->d_name.name);
+				     dentry);
 
 			d_add(dentry, NULL);
 			res = NULL;
@@ -224,10 +224,10 @@ static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
 	int ret;
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "%s: called on %s\n"
+		     "%s: called on %pd\n"
 		     "  (inode %pU): Parent is %pU | fs_id %d\n",
 		     __func__,
-		     dentry->d_name.name,
+		     dentry,
 		     get_khandle_from_ino(inode),
 		     &parent->refn.khandle,
 		     parent->refn.fs_id);
@@ -326,9 +326,9 @@ static int orangefs_symlink(struct inode *dir,
 	ORANGEFS_I(inode)->getattr_time = jiffies - 1;
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "Inode (Symlink) %pU -> %s\n",
+		     "Inode (Symlink) %pU -> %pd\n",
 		     get_khandle_from_ino(inode),
-		     dentry->d_name.name);
+		     dentry);
 
 	SetMtimeFlag(parent);
 	dir->i_mtime = dir->i_ctime = current_fs_time(dir->i_sb);
@@ -390,9 +390,9 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
 	ORANGEFS_I(inode)->getattr_time = jiffies - 1;
 
 	gossip_debug(GOSSIP_NAME_DEBUG,
-		     "Inode (Directory) %pU -> %s\n",
+		     "Inode (Directory) %pU -> %pd\n",
 		     get_khandle_from_ino(inode),
-		     dentry->d_name.name);
+		     dentry);
 
 	/*
 	 * NOTE: we have no good way to keep nlink consistent for directories
diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 9b24107c82a8..eb09aa026723 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -428,8 +428,8 @@ static ssize_t orangefs_debug_write(struct file *file,
 	struct client_debug_mask c_mask = { NULL, 0, 0 };
 
 	gossip_debug(GOSSIP_DEBUGFS_DEBUG,
-		"orangefs_debug_write: %s\n",
-		file->f_path.dentry->d_name.name);
+		"orangefs_debug_write: %pD\n",
+		file);
 
 	/*
 	 * Thwart users who try to jamb a ridiculous number
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index c75625c1efa3..251e5253f2c1 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -53,7 +53,7 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr)
 	 * inode_newsize_ok() will always check against MAX_LFS_FILESIZE and not
 	 * check for a swapfile (which this won't be anyway).
 	 */
-	err = inode_change_ok(dentry->d_inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index e2a94a26767b..3d0b9dee2b76 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1320,7 +1320,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_xattr = ovl_xattr_handlers;
 	sb->s_root = root_dentry;
 	sb->s_fs_info = ufs;
-	sb->s_flags |= MS_POSIXACL;
+	sb->s_flags |= MS_POSIXACL | MS_NOREMOTELOCK;
 
 	return 0;
 
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 59d47ab0791a..da3f760a7e88 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -598,13 +598,14 @@ posix_acl_create(struct inode *dir, umode_t *mode,
 	if (IS_ERR(p))
 		return PTR_ERR(p);
 
+	ret = -ENOMEM;
 	clone = posix_acl_clone(p, GFP_NOFS);
 	if (!clone)
-		goto no_mem;
+		goto err_release;
 
 	ret = posix_acl_create_masq(clone, mode);
 	if (ret < 0)
-		goto no_mem_clone;
+		goto err_release_clone;
 
 	if (ret == 0)
 		posix_acl_release(clone);
@@ -618,14 +619,45 @@ posix_acl_create(struct inode *dir, umode_t *mode,
 
 	return 0;
 
-no_mem_clone:
+err_release_clone:
 	posix_acl_release(clone);
-no_mem:
+err_release:
 	posix_acl_release(p);
-	return -ENOMEM;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(posix_acl_create);
 
+/**
+ * posix_acl_update_mode  -  update mode in set_acl
+ *
+ * Update the file mode when setting an ACL: compute the new file permission
+ * bits based on the ACL.  In addition, if the ACL is equivalent to the new
+ * file mode, set *acl to NULL to indicate that no ACL should be set.
+ *
+ * As with chmod, clear the setgit bit if the caller is not in the owning group
+ * or capable of CAP_FSETID (see inode_change_ok).
+ *
+ * Called from set_acl inode operations.
+ */
+int posix_acl_update_mode(struct inode *inode, umode_t *mode_p,
+			  struct posix_acl **acl)
+{
+	umode_t mode = inode->i_mode;
+	int error;
+
+	error = posix_acl_equiv_mode(*acl, &mode);
+	if (error < 0)
+		return error;
+	if (error == 0)
+		*acl = NULL;
+	if (!in_group_p(inode->i_gid) &&
+	    !capable_wrt_inode_uidgid(inode, CAP_FSETID))
+		mode &= ~S_ISGID;
+	*mode_p = mode;
+	return 0;
+}
+EXPORT_SYMBOL(posix_acl_update_mode);
+
 /*
  * Fix up the uids and gids in posix acl extended attributes in place.
  */
@@ -633,15 +665,15 @@ static void posix_acl_fix_xattr_userns(
 	struct user_namespace *to, struct user_namespace *from,
 	void *value, size_t size)
 {
-	posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
-	posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
+	struct posix_acl_xattr_header *header = value;
+	struct posix_acl_xattr_entry *entry = (void *)(header + 1), *end;
 	int count;
 	kuid_t uid;
 	kgid_t gid;
 
 	if (!value)
 		return;
-	if (size < sizeof(posix_acl_xattr_header))
+	if (size < sizeof(struct posix_acl_xattr_header))
 		return;
 	if (header->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION))
 		return;
@@ -691,15 +723,15 @@ struct posix_acl *
 posix_acl_from_xattr(struct user_namespace *user_ns,
 		     const void *value, size_t size)
 {
-	posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
-	posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
+	const struct posix_acl_xattr_header *header = value;
+	const struct posix_acl_xattr_entry *entry = (const void *)(header + 1), *end;
 	int count;
 	struct posix_acl *acl;
 	struct posix_acl_entry *acl_e;
 
 	if (!value)
 		return NULL;
-	if (size < sizeof(posix_acl_xattr_header))
+	if (size < sizeof(struct posix_acl_xattr_header))
 		 return ERR_PTR(-EINVAL);
 	if (header->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION))
 		return ERR_PTR(-EOPNOTSUPP);
@@ -760,8 +792,8 @@ int
 posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
 		   void *buffer, size_t size)
 {
-	posix_acl_xattr_header *ext_acl = (posix_acl_xattr_header *)buffer;
-	posix_acl_xattr_entry *ext_entry;
+	struct posix_acl_xattr_header *ext_acl = buffer;
+	struct posix_acl_xattr_entry *ext_entry;
 	int real_size, n;
 
 	real_size = posix_acl_xattr_size(acl->a_count);
@@ -770,7 +802,7 @@ posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
 	if (real_size > size)
 		return -ERANGE;
 
-	ext_entry = ext_acl->a_entries;
+	ext_entry = (void *)(ext_acl + 1);
 	ext_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
 
 	for (n=0; n < acl->a_count; n++, ext_entry++) {
diff --git a/fs/proc/base.c b/fs/proc/base.c
index dc7fe5f3a53c..29fd7ef97be9 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -400,23 +400,6 @@ static const struct file_operations proc_pid_cmdline_ops = {
 	.llseek	= generic_file_llseek,
 };
 
-static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
-			 struct pid *pid, struct task_struct *task)
-{
-	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
-	if (mm && !IS_ERR(mm)) {
-		unsigned int nwords = 0;
-		do {
-			nwords += 2;
-		} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
-		seq_write(m, mm->saved_auxv, nwords * sizeof(mm->saved_auxv[0]));
-		mmput(mm);
-		return 0;
-	} else
-		return PTR_ERR(mm);
-}
-
-
 #ifdef CONFIG_KALLSYMS
 /*
  * Provides a wchan file via kallsyms in a proper one-value-per-file format.
@@ -709,7 +692,7 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr)
 	if (attr->ia_valid & ATTR_MODE)
 		return -EPERM;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
@@ -1014,6 +997,30 @@ static const struct file_operations proc_environ_operations = {
 	.release	= mem_release,
 };
 
+static int auxv_open(struct inode *inode, struct file *file)
+{
+	return __mem_open(inode, file, PTRACE_MODE_READ_FSCREDS);
+}
+
+static ssize_t auxv_read(struct file *file, char __user *buf,
+			size_t count, loff_t *ppos)
+{
+	struct mm_struct *mm = file->private_data;
+	unsigned int nwords = 0;
+	do {
+		nwords += 2;
+	} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
+	return simple_read_from_buffer(buf, count, ppos, mm->saved_auxv,
+				       nwords * sizeof(mm->saved_auxv[0]));
+}
+
+static const struct file_operations proc_auxv_operations = {
+	.open		= auxv_open,
+	.read		= auxv_read,
+	.llseek		= generic_file_llseek,
+	.release	= mem_release,
+};
+
 static ssize_t oom_adj_read(struct file *file, char __user *buf, size_t count,
 			    loff_t *ppos)
 {
@@ -2842,7 +2849,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 	DIR("net",        S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
 #endif
 	REG("environ",    S_IRUSR, proc_environ_operations),
-	ONE("auxv",       S_IRUSR, proc_pid_auxv),
+	REG("auxv",       S_IRUSR, proc_auxv_operations),
 	ONE("status",     S_IRUGO, proc_pid_status),
 	ONE("personality", S_IRUSR, proc_pid_personality),
 	ONE("limits",	  S_IRUGO, proc_pid_limits),
@@ -3230,7 +3237,7 @@ static const struct pid_entry tid_base_stuff[] = {
 	DIR("net",        S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
 #endif
 	REG("environ",   S_IRUSR, proc_environ_operations),
-	ONE("auxv",      S_IRUSR, proc_pid_auxv),
+	REG("auxv",      S_IRUSR, proc_auxv_operations),
 	ONE("status",    S_IRUGO, proc_pid_status),
 	ONE("personality", S_IRUSR, proc_pid_personality),
 	ONE("limits",	 S_IRUGO, proc_pid_limits),
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 01df23cc81f6..d21dafef3102 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -31,7 +31,7 @@ static int seq_show(struct seq_file *m, void *v)
 	put_task_struct(task);
 
 	if (files) {
-		int fd = proc_fd(m->private);
+		unsigned int fd = proc_fd(m->private);
 
 		spin_lock(&files->file_lock);
 		file = fcheck_files(files, fd);
@@ -86,7 +86,7 @@ static int tid_fd_revalidate(struct dentry *dentry, unsigned int flags)
 	struct task_struct *task;
 	const struct cred *cred;
 	struct inode *inode;
-	int fd;
+	unsigned int fd;
 
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
@@ -158,7 +158,7 @@ static int proc_fd_link(struct dentry *dentry, struct path *path)
 	}
 
 	if (files) {
-		int fd = proc_fd(d_inode(dentry));
+		unsigned int fd = proc_fd(d_inode(dentry));
 		struct file *fd_file;
 
 		spin_lock(&files->file_lock);
@@ -253,7 +253,7 @@ static int proc_readfd_common(struct file *file, struct dir_context *ctx,
 			continue;
 		rcu_read_unlock();
 
-		len = snprintf(name, sizeof(name), "%d", fd);
+		len = snprintf(name, sizeof(name), "%u", fd);
 		if (!proc_fill_cache(file, ctx,
 				     name, len, instantiate, p,
 				     (void *)(unsigned long)fd))
diff --git a/fs/proc/fd.h b/fs/proc/fd.h
index 7c047f256ae2..46dafadd0083 100644
--- a/fs/proc/fd.h
+++ b/fs/proc/fd.h
@@ -11,7 +11,7 @@ extern const struct inode_operations proc_fdinfo_inode_operations;
 
 extern int proc_fd_permission(struct inode *inode, int mask);
 
-static inline int proc_fd(struct inode *inode)
+static inline unsigned int proc_fd(struct inode *inode)
 {
 	return PROC_I(inode)->fd;
 }
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index bca66d83a765..5f2dc2032c79 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -105,7 +105,7 @@ static int proc_notify_change(struct dentry *dentry, struct iattr *iattr)
 	struct proc_dir_entry *de = PDE(inode);
 	int error;
 
-	error = inode_change_ok(inode, iattr);
+	error = setattr_prepare(dentry, iattr);
 	if (error)
 		return error;
 
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 7931c558c192..5378441ec1b7 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -60,7 +60,7 @@ union proc_op {
 
 struct proc_inode {
 	struct pid *pid;
-	int fd;
+	unsigned int fd;
 	union proc_op op;
 	struct proc_dir_entry *pde;
 	struct ctl_table_header *sysctl;
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 71025b9e2a4e..f908b78bce55 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -759,7 +759,7 @@ static int proc_sys_setattr(struct dentry *dentry, struct iattr *attr)
 	if (attr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID))
 		return -EPERM;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index be3ddd189cd4..2bcbf4e77982 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -169,7 +169,7 @@ static int ramfs_nommu_setattr(struct dentry *dentry, struct iattr *ia)
 	int ret = 0;
 
 	/* POSIX UID/GID verification for setting inode attributes */
-	ret = inode_change_ok(inode, ia);
+	ret = setattr_prepare(dentry, ia);
 	if (ret)
 		return ret;
 
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index c2c59f9ff04b..cb7f518d37ae 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -3312,7 +3312,7 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
 	unsigned int ia_valid;
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index dbed42f755e0..27376681c640 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -242,13 +242,9 @@ __reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
 		if (acl) {
-			error = posix_acl_equiv_mode(acl, &inode->i_mode);
-			if (error < 0)
+			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+			if (error)
 				return error;
-			else {
-				if (error == 0)
-					acl = NULL;
-			}
 		}
 		break;
 	case ACL_TYPE_DEFAULT:
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index 82ddc09061e2..7ba997e31aeb 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -33,7 +33,7 @@ static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 7bbf420d1289..b0a6a53263f3 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1262,7 +1262,7 @@ int ubifs_setattr(struct dentry *dentry, struct iattr *attr)
 
 	dbg_gen("ino %lu, mode %#x, ia_valid %#x",
 		inode->i_ino, inode->i_mode, attr->ia_valid);
-	err = inode_change_ok(inode, attr);
+	err = setattr_prepare(dentry, attr);
 	if (err)
 		return err;
 
diff --git a/fs/udf/file.c b/fs/udf/file.c
index e855bf8d74b4..dbcb3a4a0cb9 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -261,7 +261,7 @@ static int udf_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = d_inode(dentry);
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 9f49431e798d..e4a4d248a0f5 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -1208,7 +1208,7 @@ int ufs_setattr(struct dentry *dentry, struct iattr *attr)
 	unsigned int ia_valid = attr->ia_valid;
 	int error;
 
-	error = inode_change_ok(inode, attr);
+	error = setattr_prepare(dentry, attr);
 	if (error)
 		return error;
 
diff --git a/fs/utimes.c b/fs/utimes.c
index 794f5f5b1fb5..22307cdf7014 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -81,27 +81,13 @@ static int utimes_common(struct path *path, struct timespec *times)
 			newattrs.ia_valid |= ATTR_MTIME_SET;
 		}
 		/*
-		 * Tell inode_change_ok(), that this is an explicit time
+		 * Tell setattr_prepare(), that this is an explicit time
 		 * update, even if neither ATTR_ATIME_SET nor ATTR_MTIME_SET
 		 * were used.
 		 */
 		newattrs.ia_valid |= ATTR_TIMES_SET;
 	} else {
-		/*
-		 * If times is NULL (or both times are UTIME_NOW),
-		 * then we need to check permissions, because
-		 * inode_change_ok() won't do it.
-		 */
-		error = -EPERM;
-                if (IS_IMMUTABLE(inode))
-			goto mnt_drop_write_and_out;
-
-		error = -EACCES;
-		if (!inode_owner_or_capable(inode)) {
-			error = inode_permission(inode, MAY_WRITE);
-			if (error)
-				goto mnt_drop_write_and_out;
-		}
+		newattrs.ia_valid |= ATTR_TOUCH;
 	}
 retry_deleg:
 	inode_lock(inode);
@@ -113,7 +99,6 @@ retry_deleg:
 			goto retry_deleg;
 	}
 
-mnt_drop_write_and_out:
 	mnt_drop_write(path->mnt);
 out:
 	return error;
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index b6e527b8eccb..8a0dec89ca56 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -257,16 +257,11 @@ xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 		return error;
 
 	if (type == ACL_TYPE_ACCESS) {
-		umode_t mode = inode->i_mode;
-		error = posix_acl_equiv_mode(acl, &mode);
-
-		if (error <= 0) {
-			acl = NULL;
-
-			if (error < 0)
-				return error;
-		}
+		umode_t mode;
 
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error)
+			return error;
 		error = xfs_set_mode(inode, mode);
 		if (error)
 			return error;
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 26acfbb331ae..62511687385c 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -901,7 +901,7 @@ xfs_file_fallocate(
 
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = new_size;
-		error = xfs_setattr_size(ip, &iattr);
+		error = xfs_vn_setattr_size(file_dentry(file), &iattr);
 		if (error)
 			goto out_unlock;
 	}
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index e08eaea6327b..df22e1254c98 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1710,7 +1710,7 @@ xfs_inactive_truncate(
 	/*
 	 * Log the inode size first to prevent stale data exposure in the event
 	 * of a system crash before the truncate completes. See the related
-	 * comment in xfs_setattr_size() for details.
+	 * comment in xfs_vn_setattr_size() for details.
 	 */
 	ip->i_d.di_size = 0;
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 96a70fd1f5d6..0d9021f0551e 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -720,7 +720,7 @@ xfs_ioc_space(
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = bf->l_start;
 
-		error = xfs_setattr_size(ip, &iattr);
+		error = xfs_vn_setattr_size(file_dentry(filp), &iattr);
 		break;
 	default:
 		ASSERT(0);
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index b24c3102fa93..ba99803eba98 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -542,6 +542,28 @@ xfs_setattr_time(
 		inode->i_mtime = iattr->ia_mtime;
 }
 
+static int
+xfs_vn_change_ok(
+	struct dentry	*dentry,
+	struct iattr	*iattr)
+{
+	struct xfs_mount	*mp = XFS_I(d_inode(dentry))->i_mount;
+
+	if (mp->m_flags & XFS_MOUNT_RDONLY)
+		return -EROFS;
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return -EIO;
+
+	return setattr_prepare(dentry, iattr);
+}
+
+/*
+ * Set non-size attributes of an inode.
+ *
+ * Caution: The caller of this function is responsible for calling
+ * setattr_prepare() or otherwise verifying the change is fine.
+ */
 int
 xfs_setattr_nonsize(
 	struct xfs_inode	*ip,
@@ -558,21 +580,6 @@ xfs_setattr_nonsize(
 	struct xfs_dquot	*udqp = NULL, *gdqp = NULL;
 	struct xfs_dquot	*olddquot1 = NULL, *olddquot2 = NULL;
 
-	trace_xfs_setattr(ip);
-
-	/* If acls are being inherited, we already have this checked */
-	if (!(flags & XFS_ATTR_NOACL)) {
-		if (mp->m_flags & XFS_MOUNT_RDONLY)
-			return -EROFS;
-
-		if (XFS_FORCED_SHUTDOWN(mp))
-			return -EIO;
-
-		error = inode_change_ok(inode, iattr);
-		if (error)
-			return error;
-	}
-
 	ASSERT((mask & ATTR_SIZE) == 0);
 
 	/*
@@ -743,8 +750,27 @@ out_dqrele:
 	return error;
 }
 
+int
+xfs_vn_setattr_nonsize(
+	struct dentry		*dentry,
+	struct iattr		*iattr)
+{
+	struct xfs_inode	*ip = XFS_I(d_inode(dentry));
+	int error;
+
+	trace_xfs_setattr(ip);
+
+	error = xfs_vn_change_ok(dentry, iattr);
+	if (error)
+		return error;
+	return xfs_setattr_nonsize(ip, iattr, 0);
+}
+
 /*
  * Truncate file.  Must have write permission and not be a directory.
+ *
+ * Caution: The caller of this function is responsible for calling
+ * setattr_prepare() or otherwise verifying the change is fine.
  */
 int
 xfs_setattr_size(
@@ -759,18 +785,6 @@ xfs_setattr_size(
 	uint			lock_flags = 0;
 	bool			did_zeroing = false;
 
-	trace_xfs_setattr(ip);
-
-	if (mp->m_flags & XFS_MOUNT_RDONLY)
-		return -EROFS;
-
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return -EIO;
-
-	error = inode_change_ok(inode, iattr);
-	if (error)
-		return error;
-
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
 	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
 	ASSERT(S_ISREG(inode->i_mode));
@@ -942,16 +956,32 @@ out_trans_cancel:
 	goto out_unlock;
 }
 
+int
+xfs_vn_setattr_size(
+	struct dentry		*dentry,
+	struct iattr		*iattr)
+{
+	struct xfs_inode	*ip = XFS_I(d_inode(dentry));
+	int error;
+
+	trace_xfs_setattr(ip);
+
+	error = xfs_vn_change_ok(dentry, iattr);
+	if (error)
+		return error;
+	return xfs_setattr_size(ip, iattr);
+}
+
 STATIC int
 xfs_vn_setattr(
 	struct dentry		*dentry,
 	struct iattr		*iattr)
 {
-	struct xfs_inode	*ip = XFS_I(d_inode(dentry));
 	int			error;
 
 	if (iattr->ia_valid & ATTR_SIZE) {
-		uint		iolock = XFS_IOLOCK_EXCL;
+		struct xfs_inode	*ip = XFS_I(d_inode(dentry));
+		uint			iolock = XFS_IOLOCK_EXCL;
 
 		xfs_ilock(ip, iolock);
 		error = xfs_break_layouts(d_inode(dentry), &iolock, true);
@@ -959,11 +989,11 @@ xfs_vn_setattr(
 			xfs_ilock(ip, XFS_MMAPLOCK_EXCL);
 			iolock |= XFS_MMAPLOCK_EXCL;
 
-			error = xfs_setattr_size(ip, iattr);
+			error = xfs_vn_setattr_size(dentry, iattr);
 		}
 		xfs_iunlock(ip, iolock);
 	} else {
-		error = xfs_setattr_nonsize(ip, iattr, 0);
+		error = xfs_vn_setattr_nonsize(dentry, iattr);
 	}
 
 	return error;
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index a0f84abb0d09..0259a383721a 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -33,6 +33,7 @@ extern ssize_t xfs_vn_listxattr(struct dentry *, char *data, size_t size);
 extern void xfs_setattr_time(struct xfs_inode *ip, struct iattr *iattr);
 extern int xfs_setattr_nonsize(struct xfs_inode *ip, struct iattr *vap,
 			       int flags);
-extern int xfs_setattr_size(struct xfs_inode *ip, struct iattr *vap);
+extern int xfs_vn_setattr_nonsize(struct dentry *dentry, struct iattr *vap);
+extern int xfs_vn_setattr_size(struct dentry *dentry, struct iattr *vap);
 
 #endif /* __XFS_IOPS_H__ */
author	Linus Torvalds <torvalds@linux-foundation.org>	2016-10-10 13:04:49 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2016-10-10 13:04:49 -0700
commit	abb5a14fa20fdd400995926134b7be9eb8ce6048 (patch)
tree	085add41cae3193b8c8293d25b453fd1ecae0c19 /fs
parent	911f9dab301e8583143c7e75b552eadd434ea0a8 (diff)
parent	e55f1d1d13e7f1c364672d667d78fd1f640ab9f9 (diff)
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