Merge from Linus' tree

24 files changed, 190 insertions, 224 deletions

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index a4799e971d1c..bbc3cc63854f 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -175,16 +175,16 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
 }
 
 /**
- * v9fs_read - read from a file (internal)
+ * v9fs_file_read - read from a file
  * @filep: file pointer to read
  * @data: data buffer to read data into
  * @count: size of buffer
  * @offset: offset at which to read data
  *
  */
-
 static ssize_t
-v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
+v9fs_file_read(struct file *filp, char __user * data, size_t count,
+	       loff_t * offset)
 {
 	struct inode *inode = filp->f_dentry->d_inode;
 	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
@@ -194,6 +194,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 	int rsize = 0;
 	int result = 0;
 	int total = 0;
+	int n;
 
 	dprintk(DEBUG_VFS, "\n");
 
@@ -216,10 +217,15 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 		} else
 			*offset += result;
 
-		/* XXX - extra copy */
-		memcpy(buffer, fcall->params.rread.data, result);
+		n = copy_to_user(data, fcall->params.rread.data, result);
+		if (n) {
+			dprintk(DEBUG_ERROR, "Problem copying to user %d\n", n);
+			kfree(fcall);
+			return -EFAULT;
+		}
+
 		count -= result;
-		buffer += result;
+		data += result;
 		total += result;
 
 		kfree(fcall);
@@ -232,42 +238,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 }
 
 /**
- * v9fs_file_read - read from a file
- * @filep: file pointer to read
- * @data: data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-
-static ssize_t
-v9fs_file_read(struct file *filp, char __user * data, size_t count,
-	       loff_t * offset)
-{
-	int retval = -1;
-	int ret = 0;
-	char *buffer;
-
-	buffer = kmalloc(count, GFP_KERNEL);
-	if (!buffer)
-		return -ENOMEM;
-
-	retval = v9fs_read(filp, buffer, count, offset);
-	if (retval > 0) {
-		if ((ret = copy_to_user(data, buffer, retval)) != 0) {
-			dprintk(DEBUG_ERROR, "Problem copying to user %d\n",
-				ret);
-			retval = ret;
-		}
-	}
-
-	kfree(buffer);
-
-	return retval;
-}
-
-/**
- * v9fs_write - write to a file
+ * v9fs_file_write - write to a file
  * @filep: file pointer to write
  * @data: data buffer to write data from
  * @count: size of buffer
@@ -276,7 +247,8 @@ v9fs_file_read(struct file *filp, char __user * data, size_t count,
  */
 
 static ssize_t
-v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
+v9fs_file_write(struct file *filp, const char __user * data,
+		size_t count, loff_t * offset)
 {
 	struct inode *inode = filp->f_dentry->d_inode;
 	struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
@@ -286,30 +258,42 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
 	int result = -EIO;
 	int rsize = 0;
 	int total = 0;
+	char *buf;
 
-	dprintk(DEBUG_VFS, "data %p count %d offset %x\n", buffer, (int)count,
+	dprintk(DEBUG_VFS, "data %p count %d offset %x\n", data, (int)count,
 		(int)*offset);
 	rsize = v9ses->maxdata - V9FS_IOHDRSZ;
 	if (v9fid->iounit != 0 && rsize > v9fid->iounit)
 		rsize = v9fid->iounit;
 
-	dump_data(buffer, count);
+	buf = kmalloc(v9ses->maxdata - V9FS_IOHDRSZ, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
 
 	do {
 		if (count < rsize)
 			rsize = count;
 
-		result =
-		    v9fs_t_write(v9ses, fid, *offset, rsize, buffer, &fcall);
+		result = copy_from_user(buf, data, rsize);
+		if (result) {
+			dprintk(DEBUG_ERROR, "Problem copying from user\n");
+			kfree(buf);
+			return -EFAULT;
+		}
+
+		dump_data(buf, rsize);
+		result = v9fs_t_write(v9ses, fid, *offset, rsize, buf, &fcall);
 		if (result < 0) {
 			eprintk(KERN_ERR, "error while writing: %s(%d)\n",
 				FCALL_ERROR(fcall), result);
 			kfree(fcall);
+			kfree(buf);
 			return result;
 		} else
 			*offset += result;
 
 		kfree(fcall);
+		fcall = NULL;
 
 		if (result != rsize) {
 			eprintk(KERN_ERR,
@@ -319,46 +303,14 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
 		}
 
 		count -= result;
-		buffer += result;
+		data += result;
 		total += result;
 	} while (count);
 
+	kfree(buf);
 	return total;
 }
 
-/**
- * v9fs_file_write - write to a file
- * @filep: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
- *
- */
-
-static ssize_t
-v9fs_file_write(struct file *filp, const char __user * data,
-		size_t count, loff_t * offset)
-{
-	int ret = -1;
-	char *buffer;
-
-	buffer = kmalloc(count, GFP_KERNEL);
-	if (buffer == NULL)
-		return -ENOMEM;
-
-	ret = copy_from_user(buffer, data, count);
-	if (ret) {
-		dprintk(DEBUG_ERROR, "Problem copying from user\n");
-		ret = -EFAULT;
-	} else {
-		ret = v9fs_write(filp, buffer, count, offset);
-	}
-
-	kfree(buffer);
-
-	return ret;
-}
-
 struct file_operations v9fs_file_operations = {
 	.llseek = generic_file_llseek,
 	.read = v9fs_file_read,
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 0957f4da91d4..82c5b0084079 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -129,7 +129,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 
 	if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) {
 		dprintk(DEBUG_ERROR, "problem initiating session\n");
-		return newfid;
+		return ERR_PTR(newfid);
 	}
 
 	sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
diff --git a/fs/aio.c b/fs/aio.c
index 0e11e31dbb77..d6b1551342b7 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -741,19 +741,9 @@ static ssize_t aio_run_iocb(struct kiocb *iocb)
 	ret = retry(iocb);
 	current->io_wait = NULL;
 
-	if (-EIOCBRETRY != ret) {
- 		if (-EIOCBQUEUED != ret) {
-			BUG_ON(!list_empty(&iocb->ki_wait.task_list));
-			aio_complete(iocb, ret, 0);
-			/* must not access the iocb after this */
-		}
-	} else {
-		/*
-		 * Issue an additional retry to avoid waiting forever if
-		 * no waits were queued (e.g. in case of a short read).
-		 */
-		if (list_empty(&iocb->ki_wait.task_list))
-			kiocbSetKicked(iocb);
+	if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) {
+		BUG_ON(!list_empty(&iocb->ki_wait.task_list));
+		aio_complete(iocb, ret, 0);
 	}
 out:
 	spin_lock_irq(&ctx->ctx_lock);
@@ -899,16 +889,24 @@ static void aio_kick_handler(void *data)
  * and if required activate the aio work queue to process
  * it
  */
-static void queue_kicked_iocb(struct kiocb *iocb)
+static void try_queue_kicked_iocb(struct kiocb *iocb)
 {
  	struct kioctx	*ctx = iocb->ki_ctx;
 	unsigned long flags;
 	int run = 0;
 
-	WARN_ON((!list_empty(&iocb->ki_wait.task_list)));
+	/* We're supposed to be the only path putting the iocb back on the run
+	 * list.  If we find that the iocb is *back* on a wait queue already
+	 * than retry has happened before we could queue the iocb.  This also
+	 * means that the retry could have completed and freed our iocb, no
+	 * good. */
+	BUG_ON((!list_empty(&iocb->ki_wait.task_list)));
 
 	spin_lock_irqsave(&ctx->ctx_lock, flags);
-	run = __queue_kicked_iocb(iocb);
+	/* set this inside the lock so that we can't race with aio_run_iocb()
+	 * testing it and putting the iocb on the run list under the lock */
+	if (!kiocbTryKick(iocb))
+		run = __queue_kicked_iocb(iocb);
 	spin_unlock_irqrestore(&ctx->ctx_lock, flags);
 	if (run)
 		aio_queue_work(ctx);
@@ -931,10 +929,7 @@ void fastcall kick_iocb(struct kiocb *iocb)
 		return;
 	}
 
-	/* If its already kicked we shouldn't queue it again */
-	if (!kiocbTryKick(iocb)) {
-		queue_kicked_iocb(iocb);
-	}
+	try_queue_kicked_iocb(iocb);
 }
 EXPORT_SYMBOL(kick_iocb);
 
@@ -1322,8 +1317,11 @@ asmlinkage long sys_io_destroy(aio_context_t ctx)
 }
 
 /*
- * Default retry method for aio_read (also used for first time submit)
- * Responsible for updating iocb state as retries progress
+ * aio_p{read,write} are the default  ki_retry methods for
+ * IO_CMD_P{READ,WRITE}.  They maintains kiocb retry state around potentially
+ * multiple calls to f_op->aio_read().  They loop around partial progress
+ * instead of returning -EIOCBRETRY because they don't have the means to call
+ * kick_iocb().
  */
 static ssize_t aio_pread(struct kiocb *iocb)
 {
@@ -1332,25 +1330,25 @@ static ssize_t aio_pread(struct kiocb *iocb)
 	struct inode *inode = mapping->host;
 	ssize_t ret = 0;
 
-	ret = file->f_op->aio_read(iocb, iocb->ki_buf,
-		iocb->ki_left, iocb->ki_pos);
+	do {
+		ret = file->f_op->aio_read(iocb, iocb->ki_buf,
+			iocb->ki_left, iocb->ki_pos);
+		/*
+		 * Can't just depend on iocb->ki_left to determine
+		 * whether we are done. This may have been a short read.
+		 */
+		if (ret > 0) {
+			iocb->ki_buf += ret;
+			iocb->ki_left -= ret;
+		}
 
-	/*
-	 * Can't just depend on iocb->ki_left to determine
-	 * whether we are done. This may have been a short read.
-	 */
-	if (ret > 0) {
-		iocb->ki_buf += ret;
-		iocb->ki_left -= ret;
 		/*
-		 * For pipes and sockets we return once we have
-		 * some data; for regular files we retry till we
-		 * complete the entire read or find that we can't
-		 * read any more data (e.g short reads).
+		 * For pipes and sockets we return once we have some data; for
+		 * regular files we retry till we complete the entire read or
+		 * find that we can't read any more data (e.g short reads).
 		 */
-		if (!S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode))
-			ret = -EIOCBRETRY;
-	}
+	} while (ret > 0 && iocb->ki_left > 0 &&
+		 !S_ISFIFO(inode->i_mode) && !S_ISSOCK(inode->i_mode));
 
 	/* This means we must have transferred all that we could */
 	/* No need to retry anymore */
@@ -1360,27 +1358,21 @@ static ssize_t aio_pread(struct kiocb *iocb)
 	return ret;
 }
 
-/*
- * Default retry method for aio_write (also used for first time submit)
- * Responsible for updating iocb state as retries progress
- */
+/* see aio_pread() */
 static ssize_t aio_pwrite(struct kiocb *iocb)
 {
 	struct file *file = iocb->ki_filp;
 	ssize_t ret = 0;
 
-	ret = file->f_op->aio_write(iocb, iocb->ki_buf,
-		iocb->ki_left, iocb->ki_pos);
-
-	if (ret > 0) {
-		iocb->ki_buf += ret;
-		iocb->ki_left -= ret;
-
-		ret = -EIOCBRETRY;
-	}
+	do {
+		ret = file->f_op->aio_write(iocb, iocb->ki_buf,
+			iocb->ki_left, iocb->ki_pos);
+		if (ret > 0) {
+			iocb->ki_buf += ret;
+			iocb->ki_left -= ret;
+		}
+	} while (ret > 0 && iocb->ki_left > 0);
 
-	/* This means we must have transferred all that we could */
-	/* No need to retry anymore */
 	if ((ret == 0) || (iocb->ki_left == 0))
 		ret = iocb->ki_nbytes - iocb->ki_left;
 
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index e240c335eb23..5af928fa0449 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -108,7 +108,7 @@ static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
 	inode->i_mapping->a_ops = &bfs_aops;
 	inode->i_mode = mode;
 	inode->i_ino = ino;
-	BFS_I(inode)->i_dsk_ino = cpu_to_le16(ino);
+	BFS_I(inode)->i_dsk_ino = ino;
 	BFS_I(inode)->i_sblock = 0;
 	BFS_I(inode)->i_eblock = 0;
 	insert_inode_hash(inode);
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index c7b39aa279d7..3af6c73c5b5a 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -357,28 +357,46 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 	}
 
 	info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1)>>BFS_BSIZE_BITS; /* for statfs(2) */
-	info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 -  cpu_to_le32(bfs_sb->s_start))>>BFS_BSIZE_BITS;
+	info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 -  le32_to_cpu(bfs_sb->s_start))>>BFS_BSIZE_BITS;
 	info->si_freei = 0;
 	info->si_lf_eblk = 0;
 	info->si_lf_sblk = 0;
 	info->si_lf_ioff = 0;
+	bh = NULL;
 	for (i=BFS_ROOT_INO; i<=info->si_lasti; i++) {
-		inode = iget(s,i);
-		if (BFS_I(inode)->i_dsk_ino == 0)
+		struct bfs_inode *di;
+		int block = (i - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+		int off = (i - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
+		unsigned long sblock, eblock;
+
+		if (!off) {
+			brelse(bh);
+			bh = sb_bread(s, block);
+		}
+
+		if (!bh)
+			continue;
+
+		di = (struct bfs_inode *)bh->b_data + off;
+
+		if (!di->i_ino) {
 			info->si_freei++;
-		else {
-			set_bit(i, info->si_imap);
-			info->si_freeb -= inode->i_blocks;
-			if (BFS_I(inode)->i_eblock > info->si_lf_eblk) {
-				info->si_lf_eblk = BFS_I(inode)->i_eblock;
-				info->si_lf_sblk = BFS_I(inode)->i_sblock;
-				info->si_lf_ioff = BFS_INO2OFF(i);
-			}
+			continue;
+		}
+		set_bit(i, info->si_imap);
+		info->si_freeb -= BFS_FILEBLOCKS(di);
+
+		sblock =  le32_to_cpu(di->i_sblock);
+		eblock =  le32_to_cpu(di->i_eblock);
+		if (eblock > info->si_lf_eblk) {
+			info->si_lf_eblk = eblock;
+			info->si_lf_sblk = sblock;
+			info->si_lf_ioff = BFS_INO2OFF(i);
 		}
-		iput(inode);
 	}
+	brelse(bh);
 	if (!(s->s_flags & MS_RDONLY)) {
-		mark_buffer_dirty(bh);
+		mark_buffer_dirty(info->si_sbh);
 		s->s_dirt = 1;
 	} 
 	dump_imap("read_super", s);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 7976a238f0a3..d4b15576e584 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -905,7 +905,7 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 		send_sig(SIGKILL, current, 0);
 		goto out_free_dentry;
 	}
-	if (padzero(elf_bss)) {
+	if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
 		send_sig(SIGSEGV, current, 0);
 		retval = -EFAULT; /* Nobody gets to see this, but.. */
 		goto out_free_dentry;
diff --git a/fs/bio.c b/fs/bio.c
index 83a349574567..7d81a93afd48 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -75,7 +75,7 @@ struct bio_set {
  */
 static struct bio_set *fs_bio_set;
 
-static inline struct bio_vec *bvec_alloc_bs(unsigned int __nocast gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
+static inline struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
 {
 	struct bio_vec *bvl;
 	struct biovec_slab *bp;
@@ -155,7 +155,7 @@ inline void bio_init(struct bio *bio)
  *   allocate bio and iovecs from the memory pools specified by the
  *   bio_set structure.
  **/
-struct bio *bio_alloc_bioset(unsigned int __nocast gfp_mask, int nr_iovecs, struct bio_set *bs)
+struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
 	struct bio *bio = mempool_alloc(bs->bio_pool, gfp_mask);
 
@@ -181,7 +181,7 @@ out:
 	return bio;
 }
 
-struct bio *bio_alloc(unsigned int __nocast gfp_mask, int nr_iovecs)
+struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
 {
 	struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
 
@@ -277,7 +277,7 @@ inline void __bio_clone(struct bio *bio, struct bio *bio_src)
  *
  * 	Like __bio_clone, only also allocates the returned bio
  */
-struct bio *bio_clone(struct bio *bio, unsigned int __nocast gfp_mask)
+struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 {
 	struct bio *b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, fs_bio_set);
 
@@ -1078,7 +1078,7 @@ struct bio_pair *bio_split(struct bio *bi, mempool_t *pool, int first_sectors)
 	return bp;
 }
 
-static void *bio_pair_alloc(unsigned int __nocast gfp_flags, void *data)
+static void *bio_pair_alloc(gfp_t gfp_flags, void *data)
 {
 	return kmalloc(sizeof(struct bio_pair), gfp_flags);
 }
diff --git a/fs/buffer.c b/fs/buffer.c
index 6cbfceabd95d..1216c0d3c8ce 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3045,7 +3045,7 @@ static void recalc_bh_state(void)
 	buffer_heads_over_limit = (tot > max_buffer_heads);
 }
 	
-struct buffer_head *alloc_buffer_head(unsigned int __nocast gfp_flags)
+struct buffer_head *alloc_buffer_head(gfp_t gfp_flags)
 {
 	struct buffer_head *ret = kmem_cache_alloc(bh_cachep, gfp_flags);
 	if (ret) {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6454022b0536..657ab11c173b 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -23,6 +23,10 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
 	struct fuse_file *ff;
 	int err;
 
+	/* VFS checks this, but only _after_ ->open() */
+	if (file->f_flags & O_DIRECT)
+		return -EINVAL;
+
 	err = generic_file_open(inode, file);
 	if (err)
 		return err;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 59c5062cd63f..dd7113106269 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -793,11 +793,6 @@ int hostfs_rename(struct inode *from_ino, struct dentry *from,
 	return(err);
 }
 
-void hostfs_truncate(struct inode *ino)
-{
-	not_implemented();
-}
-
 int hostfs_permission(struct inode *ino, int desired, struct nameidata *nd)
 {
 	char *name;
@@ -894,7 +889,6 @@ static struct inode_operations hostfs_iops = {
 	.rmdir		= hostfs_rmdir,
 	.mknod		= hostfs_mknod,
 	.rename		= hostfs_rename,
-	.truncate	= hostfs_truncate,
 	.permission	= hostfs_permission,
 	.setattr	= hostfs_setattr,
 	.getattr	= hostfs_getattr,
@@ -910,7 +904,6 @@ static struct inode_operations hostfs_dir_iops = {
 	.rmdir		= hostfs_rmdir,
 	.mknod		= hostfs_mknod,
 	.rename		= hostfs_rename,
-	.truncate	= hostfs_truncate,
 	.permission	= hostfs_permission,
 	.setattr	= hostfs_setattr,
 	.getattr	= hostfs_getattr,
diff --git a/fs/mpage.c b/fs/mpage.c
index bb9aebe93862..c5adcdddf3cc 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -102,7 +102,7 @@ static struct bio *mpage_bio_submit(int rw, struct bio *bio)
 static struct bio *
 mpage_alloc(struct block_device *bdev,
 		sector_t first_sector, int nr_vecs,
-		unsigned int __nocast gfp_flags)
+		gfp_t gfp_flags)
 {
 	struct bio *bio;
 
diff --git a/fs/namei.c b/fs/namei.c
index 043d587216b5..aa62dbda93ac 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1551,19 +1551,19 @@ do_link:
 	if (nd->last_type != LAST_NORM)
 		goto exit;
 	if (nd->last.name[nd->last.len]) {
-		putname(nd->last.name);
+		__putname(nd->last.name);
 		goto exit;
 	}
 	error = -ELOOP;
 	if (count++==32) {
-		putname(nd->last.name);
+		__putname(nd->last.name);
 		goto exit;
 	}
 	dir = nd->dentry;
 	down(&dir->d_inode->i_sem);
 	path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
 	path.mnt = nd->mnt;
-	putname(nd->last.name);
+	__putname(nd->last.name);
 	goto do_last;
 }
 
diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c
index 251e5a1bb1c4..0c2be8c0307d 100644
--- a/fs/nfs_common/nfsacl.c
+++ b/fs/nfs_common/nfsacl.c
@@ -48,43 +48,26 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
 		(struct nfsacl_encode_desc *) desc;
 	u32 *p = (u32 *) elem;
 
-	if (nfsacl_desc->count < nfsacl_desc->acl->a_count) {
-		struct posix_acl_entry *entry =
-			&nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
+	struct posix_acl_entry *entry =
+		&nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
 
-		*p++ = htonl(entry->e_tag | nfsacl_desc->typeflag);
-		switch(entry->e_tag) {
-			case ACL_USER_OBJ:
-				*p++ = htonl(nfsacl_desc->uid);
-				break;
-			case ACL_GROUP_OBJ:
-				*p++ = htonl(nfsacl_desc->gid);
-				break;
-			case ACL_USER:
-			case ACL_GROUP:
-				*p++ = htonl(entry->e_id);
-				break;
-			default:  /* Solaris depends on that! */
-				*p++ = 0;
-				break;
-		}
-		*p++ = htonl(entry->e_perm & S_IRWXO);
-	} else {
-		const struct posix_acl_entry *pa, *pe;
-		int group_obj_perm = ACL_READ|ACL_WRITE|ACL_EXECUTE;
-
-		FOREACH_ACL_ENTRY(pa, nfsacl_desc->acl, pe) {
-			if (pa->e_tag == ACL_GROUP_OBJ) {
-				group_obj_perm = pa->e_perm & S_IRWXO;
-				break;
-			}
-		}
-		/* fake up ACL_MASK entry */
-		*p++ = htonl(ACL_MASK | nfsacl_desc->typeflag);
-		*p++ = htonl(0);
-		*p++ = htonl(group_obj_perm);
+	*p++ = htonl(entry->e_tag | nfsacl_desc->typeflag);
+	switch(entry->e_tag) {
+		case ACL_USER_OBJ:
+			*p++ = htonl(nfsacl_desc->uid);
+			break;
+		case ACL_GROUP_OBJ:
+			*p++ = htonl(nfsacl_desc->gid);
+			break;
+		case ACL_USER:
+		case ACL_GROUP:
+			*p++ = htonl(entry->e_id);
+			break;
+		default:  /* Solaris depends on that! */
+			*p++ = 0;
+			break;
 	}
-
+	*p++ = htonl(entry->e_perm & S_IRWXO);
 	return 0;
 }
 
@@ -105,11 +88,28 @@ nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
 		.gid = inode->i_gid,
 	};
 	int err;
+	struct posix_acl *acl2 = NULL;
 
 	if (entries > NFS_ACL_MAX_ENTRIES ||
 	    xdr_encode_word(buf, base, entries))
 		return -EINVAL;
+	if (encode_entries && acl && acl->a_count == 3) {
+		/* Fake up an ACL_MASK entry. */
+		acl2 = posix_acl_alloc(4, GFP_KERNEL);
+		if (!acl2)
+			return -ENOMEM;
+		/* Insert entries in canonical order: other orders seem
+		 to confuse Solaris VxFS. */
+		acl2->a_entries[0] = acl->a_entries[0];  /* ACL_USER_OBJ */
+		acl2->a_entries[1] = acl->a_entries[1];  /* ACL_GROUP_OBJ */
+		acl2->a_entries[2] = acl->a_entries[1];  /* ACL_MASK */
+		acl2->a_entries[2].e_tag = ACL_MASK;
+		acl2->a_entries[3] = acl->a_entries[2];  /* ACL_OTHER */
+		nfsacl_desc.acl = acl2;
+	}
 	err = xdr_encode_array2(buf, base + 4, &nfsacl_desc.desc);
+	if (acl2)
+		posix_acl_release(acl2);
 	if (!err)
 		err = 8 + nfsacl_desc.desc.elem_size *
 			  nfsacl_desc.desc.array_len;
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
index 83f3322765cd..de58579a1d0e 100644
--- a/fs/ntfs/ChangeLog
+++ b/fs/ntfs/ChangeLog
@@ -102,6 +102,9 @@ ToDo/Notes:
 	  inode instead of a vfs inode as parameter.
 	- Fix the definition of the CHKD ntfs record magic.  It had an off by
 	  two error causing it to be CHKB instead of CHKD.
+	- Fix a stupid bug in __ntfs_bitmap_set_bits_in_run() which caused the
+	  count to become negative and hence we had a wild memset() scribbling
+	  all over the system's ram.
 
 2.1.23 - Implement extension of resident files and make writing safe as well as
 	 many bug fixes, cleanups, and enhancements...
diff --git a/fs/ntfs/bitmap.c b/fs/ntfs/bitmap.c
index 12cf2e30c7dd..7a190cdc60e2 100644
--- a/fs/ntfs/bitmap.c
+++ b/fs/ntfs/bitmap.c
@@ -1,7 +1,7 @@
 /*
  * bitmap.c - NTFS kernel bitmap handling.  Part of the Linux-NTFS project.
  *
- * Copyright (c) 2004 Anton Altaparmakov
+ * Copyright (c) 2004-2005 Anton Altaparmakov
  *
  * This program/include file is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published
@@ -90,7 +90,8 @@ int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const s64 start_bit,
 	/* If the first byte is partial, modify the appropriate bits in it. */
 	if (bit) {
 		u8 *byte = kaddr + pos;
-		while ((bit & 7) && cnt--) {
+		while ((bit & 7) && cnt) {
+			cnt--;
 			if (value)
 				*byte |= 1 << bit++;
 			else
diff --git a/fs/ntfs/layout.h b/fs/ntfs/layout.h
index 01f2dfa39cec..5c248d404f05 100644
--- a/fs/ntfs/layout.h
+++ b/fs/ntfs/layout.h
@@ -309,7 +309,7 @@ typedef le16 MFT_RECORD_FLAGS;
  * Note: The _LE versions will return a CPU endian formatted value!
  */
 #define MFT_REF_MASK_CPU 0x0000ffffffffffffULL
-#define MFT_REF_MASK_LE const_cpu_to_le64(0x0000ffffffffffffULL)
+#define MFT_REF_MASK_LE const_cpu_to_le64(MFT_REF_MASK_CPU)
 
 typedef u64 MFT_REF;
 typedef le64 leMFT_REF;
diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h
index 006946efca8c..590887b943f5 100644
--- a/fs/ntfs/malloc.h
+++ b/fs/ntfs/malloc.h
@@ -40,7 +40,7 @@
  * Depending on @gfp_mask the allocation may be guaranteed to succeed.
  */
 static inline void *__ntfs_malloc(unsigned long size,
-		unsigned int __nocast gfp_mask)
+		gfp_t gfp_mask)
 {
 	if (likely(size <= PAGE_SIZE)) {
 		BUG_ON(!size);
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 247586d1d5dc..b011369b5956 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -58,7 +58,8 @@ static inline MFT_RECORD *map_mft_record_page(ntfs_inode *ni)
 	 * overflowing the unsigned long, but I don't think we would ever get
 	 * here if the volume was that big...
 	 */
-	index = ni->mft_no << vol->mft_record_size_bits >> PAGE_CACHE_SHIFT;
+	index = (u64)ni->mft_no << vol->mft_record_size_bits >>
+			PAGE_CACHE_SHIFT;
 	ofs = (ni->mft_no << vol->mft_record_size_bits) & ~PAGE_CACHE_MASK;
 
 	i_size = i_size_read(mft_vi);
diff --git a/fs/ntfs/unistr.c b/fs/ntfs/unistr.c
index a389a5a16c84..0ea887fc859c 100644
--- a/fs/ntfs/unistr.c
+++ b/fs/ntfs/unistr.c
@@ -1,7 +1,7 @@
 /*
  * unistr.c - NTFS Unicode string handling. Part of the Linux-NTFS project.
  *
- * Copyright (c) 2001-2004 Anton Altaparmakov
+ * Copyright (c) 2001-2005 Anton Altaparmakov
  *
  * This program/include file is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as published
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 296480e96dd5..6c8dcf7613fd 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -35,7 +35,7 @@ EXPORT_SYMBOL(posix_acl_permission);
  * Allocate a new ACL with the specified number of entries.
  */
 struct posix_acl *
-posix_acl_alloc(int count, unsigned int __nocast flags)
+posix_acl_alloc(int count, gfp_t flags)
 {
 	const size_t size = sizeof(struct posix_acl) +
 	                    count * sizeof(struct posix_acl_entry);
@@ -51,7 +51,7 @@ posix_acl_alloc(int count, unsigned int __nocast flags)
  * Clone an ACL.
  */
 struct posix_acl *
-posix_acl_clone(const struct posix_acl *acl, unsigned int __nocast flags)
+posix_acl_clone(const struct posix_acl *acl, gfp_t flags)
 {
 	struct posix_acl *clone = NULL;
 
@@ -185,7 +185,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, mode_t *mode_p)
  * Create an ACL representing the file mode permission bits of an inode.
  */
 struct posix_acl *
-posix_acl_from_mode(mode_t mode, unsigned int __nocast flags)
+posix_acl_from_mode(mode_t mode, gfp_t flags)
 {
 	struct posix_acl *acl = posix_acl_alloc(3, flags);
 	if (!acl)
diff --git a/fs/read_write.c b/fs/read_write.c
index b60324aaa2b6..a091ee4f430d 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -499,6 +499,9 @@ static ssize_t do_readv_writev(int type, struct file *file,
 	ret = rw_verify_area(type, file, pos, tot_len);
 	if (ret)
 		goto out;
+	ret = security_file_permission(file, type == READ ? MAY_READ : MAY_WRITE);
+	if (ret)
+		goto out;
 
 	fnv = NULL;
 	if (type == READ) {
diff --git a/fs/relayfs/buffers.c b/fs/relayfs/buffers.c
index 2aa8e2719999..84e21ffa5ca8 100644
--- a/fs/relayfs/buffers.c
+++ b/fs/relayfs/buffers.c
@@ -109,7 +109,7 @@ static void *relay_alloc_buf(struct rchan_buf *buf, unsigned long size)
 		if (unlikely(!buf->page_array[i]))
 			goto depopulate;
 	}
-	mem = vmap(buf->page_array, n_pages, GFP_KERNEL, PAGE_KERNEL);
+	mem = vmap(buf->page_array, n_pages, VM_MAP, PAGE_KERNEL);
 	if (!mem)
 		goto depopulate;
 
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index 4b184559f231..d2653b589b1c 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -45,7 +45,7 @@
 
 
 void *
-kmem_alloc(size_t size, unsigned int __nocast flags)
+kmem_alloc(size_t size, gfp_t flags)
 {
 	int		retries = 0;
 	unsigned int	lflags = kmem_flags_convert(flags);
@@ -67,7 +67,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
 }
 
 void *
-kmem_zalloc(size_t size, unsigned int __nocast flags)
+kmem_zalloc(size_t size, gfp_t flags)
 {
 	void	*ptr;
 
@@ -90,7 +90,7 @@ kmem_free(void *ptr, size_t size)
 
 void *
 kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
-	     unsigned int __nocast flags)
+	     gfp_t flags)
 {
 	void	*new;
 
@@ -105,7 +105,7 @@ kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
 }
 
 void *
-kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_alloc(kmem_zone_t *zone, gfp_t flags)
 {
 	int		retries = 0;
 	unsigned int	lflags = kmem_flags_convert(flags);
@@ -124,7 +124,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
 }
 
 void *
-kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_zalloc(kmem_zone_t *zone, gfp_t flags)
 {
 	void	*ptr;
 
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h
index 109fcf27e256..ee7010f085bc 100644
--- a/fs/xfs/linux-2.6/kmem.h
+++ b/fs/xfs/linux-2.6/kmem.h
@@ -81,7 +81,7 @@ typedef unsigned long xfs_pflags_t;
 	*(NSTATEP) = *(OSTATEP);	\
 } while (0)
 
-static __inline unsigned int kmem_flags_convert(unsigned int __nocast flags)
+static __inline unsigned int kmem_flags_convert(gfp_t flags)
 {
 	unsigned int	lflags = __GFP_NOWARN;	/* we'll report problems, if need be */
 
@@ -125,13 +125,12 @@ kmem_zone_destroy(kmem_zone_t *zone)
 		BUG();
 }
 
-extern void	    *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
-extern void	    *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
+extern void	    *kmem_zone_zalloc(kmem_zone_t *, gfp_t);
+extern void	    *kmem_zone_alloc(kmem_zone_t *, gfp_t);
 
-extern void	    *kmem_alloc(size_t, unsigned int __nocast);
-extern void	    *kmem_realloc(void *, size_t, size_t,
-				  unsigned int __nocast);
-extern void	    *kmem_zalloc(size_t, unsigned int __nocast);
+extern void	    *kmem_alloc(size_t, gfp_t);
+extern void	    *kmem_realloc(void *, size_t, size_t, gfp_t);
+extern void	    *kmem_zalloc(size_t, gfp_t);
 extern void         kmem_free(void *, size_t);
 
 typedef struct shrinker *kmem_shaker_t;