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* Merge tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggyLinus Torvalds2017-07-253-12/+20
|\ | | | | | | | | | | | | | | | | Pull JFS fixes from David Kleikamp. * tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggy: jfs: preserve i_mode if __jfs_set_acl() fails jfs: Don't clear SGID when inheriting ACLs jfs: atomically read inode size
| * jfs: preserve i_mode if __jfs_set_acl() failsErnesto A. Fernández2017-07-181-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When changing a file's acl mask, __jfs_set_acl() will first set the group bits of i_mode to the value of the mask, and only then set the actual extended attribute representing the new acl. If the second part fails (due to lack of space, for example) and the file had no acl attribute to begin with, the system will from now on assume that the mask permission bits are actual group permission bits, potentially granting access to the wrong users. Prevent this by only changing the inode mode after the acl has been set. Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
| * jfs: Don't clear SGID when inheriting ACLsJan Kara2017-07-181-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit set, DIR1 is expected to have SGID bit set (and owning group equal to the owning group of 'DIR0'). However when 'DIR0' also has some default ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on 'DIR1' to get cleared if user is not member of the owning group. Fix the problem by moving posix_acl_update_mode() out of __jfs_set_acl() into jfs_set_acl(). That way the function will not be called when inheriting ACLs which is what we want as it prevents SGID bit clearing and the mode has been properly set by posix_acl_create() anyway. Fixes: 073931017b49d9458aa351605b43a7e34598caef CC: stable@vger.kernel.org CC: jfs-discussion@lists.sourceforge.net Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
| * jfs: atomically read inode sizeFabian Frederick2017-02-092-4/+4
| | | | | | | | | | | | | | See i_size_read() comments in include/linux/fs.h Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
* | Merge tag 'for-linus-v4.13-1' of ↵Linus Torvalds2017-07-072-2/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull Writeback error handling fixes from Jeff Layton: "The main rationale for all of these changes is to tighten up writeback error reporting to userland. There are many ways now that writeback errors can be lost, such that fsync/fdatasync/msync return 0 when writeback actually failed. This pile contains a small set of cleanups and writeback error handling fixes that I was able to break off from the main pile (#2). Two of the patches in this pile are trivial. The exceptions are the patch to fix up error handling in write_one_page, and the patch to make JFS pay attention to write_one_page errors" * tag 'for-linus-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: fs: remove call_fsync helper function mm: clean up error handling in write_one_page JFS: do not ignore return code from write_one_page() mm: drop "wait" parameter from write_one_page()
| * | JFS: do not ignore return code from write_one_page()Dave Kleikamp2017-07-052-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a couple places where jfs calls write_one_page() where clean recovery is not possible. In these cases, the file system should be marked dirty. To do this, it is now necessary to store the superblock in the metapage structure. Link: http://lkml.kernel.org/r/db45ab67-55c7-08ff-6776-f76b3bf5cbf5@oracle.com Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Cc: Jeff Layton <jlayton@redhat.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Jan Kara <jack@suse.cz> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Layton <jlayton@redhat.com>
| * | mm: drop "wait" parameter from write_one_page()Jeff Layton2017-07-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The callers all set it to 1. Also, make it clear that this function will not set any sort of AS_* error, and that the caller must do so if necessary. No existing caller uses this on normal files, so none of them need it. Also, add __must_check here since, in general, the callers need to handle an error here in some fashion. Link: http://lkml.kernel.org/r/20170525103303.6524-1-jlayton@redhat.com Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* | | block: switch bios to blk_status_tChristoph Hellwig2017-06-092-3/+3
|/ / | | | | | | | | | | | | | | | | | | Replace bi_error with a new bi_status to allow for a clear conversion. Note that device mapper overloaded bi_error with a private value, which we'll have to keep arround at least for now and thus propagate to a proper blk_status_t value. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* | jfs: Remove jfs_get_inode_flags()Jan Kara2017-04-194-22/+0
| | | | | | | | | | | | | | Now that all places setting inode->i_flags that should be reflected in on-disk flags are gone, we can remove jfs_get_inode_flags() call. Signed-off-by: Jan Kara <jack@suse.cz>
* | jfs: Set flags on quota files directlyJan Kara2017-04-191-2/+77
| | | | | | | | | | | | | | | | | | Currently immutable and noatime flags on quota files are set by quota code which requires us to copy inode->i_flags to our on disk version of quota flags in GETFLAGS ioctl and copy_to_dinode(). Move to setting / clearing these on-disk flags directly to save that copying. Signed-off-by: Jan Kara <jack@suse.cz>
* | fs: add i_blocksize()Fabian Frederick2017-02-271-2/+2
|/ | | | | | | | | | | | | | | | | | | | | Replace all 1 << inode->i_blkbits and (1 << inode->i_blkbits) in fs branch. This patch also fixes multiple checkpatch warnings: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Thanks to Andrew Morton for suggesting more appropriate function instead of macro. [geliangtang@gmail.com: truncate: use i_blocksize()] Link: http://lkml.kernel.org/r/9c8b2cd83c8f5653805d43debde9fa8817e02fc4.1484895804.git.geliangtang@gmail.com Link: http://lkml.kernel.org/r/1481319905-10126-1-git-send-email-fabf@skynet.be Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-243-3/+3
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge uncontroversial parts of branch 'readlink' of ↵Linus Torvalds2016-12-171-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull partial readlink cleanups from Miklos Szeredi. This is the uncontroversial part of the readlink cleanup patch-set that simplifies the default readlink handling. Miklos and Al are still discussing the rest of the series. * git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: vfs: make generic_readlink() static vfs: remove ".readlink = generic_readlink" assignments vfs: default to generic_readlink() vfs: replace calling i_op->readlink with vfs_readlink() proc/self: use generic_readlink ecryptfs: use vfs_get_link() bad_inode: add missing i_op initializers
| * vfs: remove ".readlink = generic_readlink" assignmentsMiklos Szeredi2016-12-091-2/+0
| | | | | | | | | | | | | | | | | | | | | | If .readlink == NULL implies generic_readlink(). Generated by: to_del="\.readlink.*=.*generic_readlink" for i in `git grep -l $to_del`; do sed -i "/$to_del"/d $i; done Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
* | Merge tag 'jfs-4.10' of git://github.com/kleikamp/linux-shaggyLinus Torvalds2016-12-141-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | Pull jfs update from David Kleikamp: "The jfs piece of the current_time() series" * tag 'jfs-4.10' of git://github.com/kleikamp/linux-shaggy: fs: jfs: Replace CURRENT_TIME_SEC by current_time()
| * | fs: jfs: Replace CURRENT_TIME_SEC by current_time()Deepa Dinamani2016-11-111-1/+1
| |/ | | | | | | | | | | | | | | | | | | jfs uses nanosecond granularity for filesystem timestamps. Only this assignment is not using nanosecond granularity. Use current_time() to get the right granularity. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
* / block,fs: use REQ_* flags directlyChristoph Hellwig2016-11-011-2/+2
|/ | | | | | | | | Remove the WRITE_* and READ_SYNC wrappers, and just use the flags directly. Where applicable this also drops usage of the bio_set_op_attrs wrapper. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2016-10-106-18/+21
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: ">rename2() work from Miklos + current_time() from Deepa" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: Replace current_fs_time() with current_time() fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps fs: Replace CURRENT_TIME with current_time() for inode timestamps fs: proc: Delete inode time initializations in proc_alloc_inode() vfs: Add current_time() api vfs: add note about i_op->rename changes to porting fs: rename "rename2" i_op to "rename" vfs: remove unused i_op->rename fs: make remaining filesystems use .rename2 libfs: support RENAME_NOREPLACE in simple_rename() fs: support RENAME_NOREPLACE for local filesystems ncpfs: fix unused variable warning
| * Merge remote-tracking branch 'ovl/rename2' into for-linusAl Viro2016-10-101-1/+4
| |\
| | * fs: rename "rename2" i_op to "rename"Miklos Szeredi2016-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Generated patch: sed -i "s/\.rename2\t/\.rename\t\t/" `git grep -wl rename2` sed -i "s/\brename2\b/rename/g" `git grep -wl rename2` Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| | * fs: support RENAME_NOREPLACE for local filesystemsMiklos Szeredi2016-09-271-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is trivial to do: - add flags argument to foo_rename() - check if flags doesn't have any other than RENAME_NOREPLACE - assign foo_rename() to .rename2 instead of .rename Filesystems converted: affs, bfs, exofs, ext2, hfs, hfsplus, jffs2, jfs, logfs, minix, msdos, nilfs2, omfs, reiserfs, sysvfs, ubifs, udf, ufs, vfat. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Acked-by: Boaz Harrosh <ooo@electrozaur.com> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Bob Copeland <me@bobcopeland.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@kernel.org> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Christoph Hellwig <hch@infradead.org>
| * | fs: Replace current_fs_time() with current_time()Deepa Dinamani2016-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | current_fs_time() uses struct super_block* as an argument. As per Linus's suggestion, this is changed to take struct inode* as a parameter instead. This is because the function is primarily meant for vfs inode timestamps. Also the function was renamed as per Arnd's suggestion. Change all calls to current_fs_time() to use the new current_time() function instead. current_fs_time() will be deleted. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | fs: Replace CURRENT_TIME with current_time() for inode timestampsDeepa Dinamani2016-09-276-16/+16
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CURRENT_TIME macro is not appropriate for filesystems as it doesn't use the right granularity for filesystem timestamps. Use current_time() instead. CURRENT_TIME is also not y2038 safe. This is also in preparation for the patch that transitions vfs timestamps to use 64 bit time and hence make them y2038 safe. As part of the effort current_time() will be extended to do range checks. Hence, it is necessary for all file system timestamps to use current_time(). Also, current_time() will be transitioned along with vfs to be y2038 safe. Note that whenever a single call to current_time() is used to change timestamps in different inodes, it is because they share the same time granularity. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Felipe Balbi <balbi@kernel.org> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: David Sterba <dsterba@suse.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'work.xattr' of ↵Linus Torvalds2016-10-103-12/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs xattr updates from Al Viro: "xattr stuff from Andreas This completes the switch to xattr_handler ->get()/->set() from ->getxattr/->setxattr/->removexattr" * 'work.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: vfs: Remove {get,set,remove}xattr inode operations xattr: Stop calling {get,set,remove}xattr inode operations vfs: Check for the IOP_XATTR flag in listxattr xattr: Add __vfs_{get,set,remove}xattr helpers libfs: Use IOP_XATTR flag for empty directory handling vfs: Use IOP_XATTR flag for bad-inode handling vfs: Add IOP_XATTR inode operations flag vfs: Move xattr_resolve_name to the front of fs/xattr.c ecryptfs: Switch to generic xattr handlers sockfs: Get rid of getxattr iop sockfs: getxattr: Fail with -EOPNOTSUPP for invalid attribute names kernfs: Switch to generic xattr handlers hfs: Switch to generic xattr handlers jffs2: Remove jffs2_{get,set,remove}xattr macros xattr: Remove unnecessary NULL attribute name check
| * | vfs: Remove {get,set,remove}xattr inode operationsAndreas Gruenbacher2016-10-073-12/+0
| |/ | | | | | | | | | | | | These inode operations are no longer used; remove them. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'work.misc' of ↵Linus Torvalds2016-10-102-5/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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() ...
| * | fs: Give dentry to inode_change_ok() instead of inodeJan Kara2016-09-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | inode_change_ok() will be resposible for clearing capabilities and IMA extended attributes and as such will need dentry. Give it as an argument to inode_change_ok() instead of an inode. Also rename inode_change_ok() to setattr_prepare() to better relect that it does also some modifications in addition to checks. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | posix_acl: Clear SGID bit when setting file permissionsJan Kara2016-09-221-4/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | When file permissions are modified via chmod(2) and the user is not in the owning group or capable of CAP_FSETID, the setgid bit is cleared in inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file permissions as well as the new ACL, but doesn't clear the setgid bit in a similar way; this allows to bypass the check in chmod(2). Fix that. References: CVE-2016-7097 Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
* | jfs: Simplify codeChristophe JAILLET2016-09-061-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calling 'list_splice' followed by 'INIT_LIST_HEAD' is equivalent to 'list_splice_init'. This has been spotted with the following coccinelle script: ///// @@ expression y,z; @@ - list_splice(y,z); - INIT_LIST_HEAD(y); + list_splice_init(y,z); Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
* | jfs: jump to error_out when filemap_{fdatawait, write_and_wait} failsQuorum Laval2016-08-291-2/+8
|/ | | | | | | | filemap_fdatawait/filemap_write_and_wait may fail, so check the return value and jump to error_out in the case of error. Signed-off-by: Quorum Laval <quorum.laval@gmail.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
* get rid of 'parent' argument of ->d_compare()Al Viro2016-07-311-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'work.misc' of ↵Linus Torvalds2016-07-285-6/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs updates from Al Viro: "Assorted cleanups and fixes. Probably the most interesting part long-term is ->d_init() - that will have a bunch of followups in (at least) ceph and lustre, but we'll need to sort the barrier-related rules before it can get used for really non-trivial stuff. Another fun thing is the merge of ->d_iput() callers (dentry_iput() and dentry_unlink_inode()) and a bunch of ->d_compare() ones (all except the one in __d_lookup_lru())" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits) fs/dcache.c: avoid soft-lockup in dput() vfs: new d_init method vfs: Update lookup_dcache() comment bdev: get rid of ->bd_inodes Remove last traces of ->sync_page new helper: d_same_name() dentry_cmp(): use lockless_dereference() instead of smp_read_barrier_depends() vfs: clean up documentation vfs: document ->d_real() vfs: merge .d_select_inode() into .d_real() unify dentry_iput() and dentry_unlink_inode() binfmt_misc: ->s_root is not going anywhere drop redundant ->owner initializations ufs: get rid of redundant checks orangefs: constify inode_operations missed comment updates from ->direct_IO() prototype change file_inode(f)->i_mapping is f->f_mapping trim fsnotify hooks a bit 9p: new helper - v9fs_parent_fid() debugfs: ->d_parent is never NULL or negative ...
| * drop redundant ->owner initializationsAl Viro2016-05-295-6/+0
| | | | | | | | | | | | | | it's not needed for file_operations of inodes located on fs defined in the hosting module and for file_operations that go into procfs. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'salted-string-hash'Linus Torvalds2016-07-281-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the vfs dentry hashing to mix in the parent pointer at the _beginning_ of the hash, rather than at the end. That actually improves both the hash and the code generation, because we can move more of the computation to the "static" part of the dcache setup, and do less at lookup runtime. It turns out that a lot of other hash users also really wanted to mix in a base pointer as a 'salt' for the hash, and so the slightly extended interface ends up working well for other cases too. Users that want a string hash that is purely about the string pass in a 'salt' pointer of NULL. * merge branch 'salted-string-hash': fs/dcache.c: Save one 32-bit multiply in dcache lookup vfs: make the string hashes salt the hash
| * | vfs: make the string hashes salt the hashLinus Torvalds2016-06-101-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We always mixed in the parent pointer into the dentry name hash, but we did it late at lookup time. It turns out that we can simplify that lookup-time action by salting the hash with the parent pointer early instead of late. A few other users of our string hashes also wanted to mix in their own pointers into the hash, and those are updated to use the same mechanism. Hash users that don't have any particular initial salt can just use the NULL pointer as a no-salt. Cc: Vegard Nossum <vegard.nossum@oracle.com> Cc: George Spelvin <linux@sciencehorizons.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | block, fs, mm, drivers: use bio set/get op accessorsMike Christie2016-06-072-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts the simple bi_rw use cases in the block, drivers, mm and fs code to set/get the bio operation using bio_set_op_attrs/bio_op These should be simple one or two liner cases, so I just did them in one patch. The next patches handle the more complicated cases in a module per patch. Signed-off-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
* | block/fs/drivers: remove rw argument from submit_bioMike Christie2016-06-072-6/+10
|/ | | | | | | | | | | | This has callers of submit_bio/submit_bio_wait set the bio->bi_rw instead of passing it in. This makes that use the same as generic_make_request and how we set the other bio fields. Signed-off-by: Mike Christie <mchristi@redhat.com> Fixed up fs/ext4/crypto.c Signed-off-by: Jens Axboe <axboe@fb.com>
* switch xattr_handler->set() to passing dentry and inode separatelyAl Viro2016-05-271-8/+6
| | | | | | | preparation for similar switch in ->setxattr() (see the next commit for rationale). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2016-05-185-158/+96
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull remaining vfs xattr work from Al Viro: "The rest of work.xattr (non-cifs conversions)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: btrfs: Switch to generic xattr handlers ubifs: Switch to generic xattr handlers jfs: Switch to generic xattr handlers jfs: Clean up xattr name mapping gfs2: Switch to generic xattr handlers ceph: kill __ceph_removexattr() ceph: Switch to generic xattr handlers ceph: Get rid of d_find_alias in ceph_set_acl
| * jfs: Switch to generic xattr handlersAndreas Gruenbacher2016-05-125-116/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | This is mostly the same as on other filesystems except for attribute names with an "os2." prefix: for those, the prefix is not stored on disk, and on-attribute names without a prefix have "os2." added. As on several other filesystems, the underlying function for setting/removing xattrs (__jfs_setxattr) removes attributes when the value is NULL, so the set xattr handlers will work as expected. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * jfs: Clean up xattr name mappingAndreas Gruenbacher2016-05-121-55/+25
| | | | | | | | | | | | | | | | | | Instead of stripping "os2." prefixes in __jfs_setxattr, make callers strip them, as __jfs_getxattr already does. With that change, use the same name mapping function in jfs_{get,set,remove}xattr. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'work.preadv2' of ↵Linus Torvalds2016-05-171-4/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs cleanups from Al Viro: "More cleanups from Christoph" * 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: nfsd: use RWF_SYNC fs: add RWF_DSYNC aand RWF_SYNC ceph: use generic_write_sync fs: simplify the generic_write_sync prototype fs: add IOCB_SYNC and IOCB_DSYNC direct-io: remove the offset argument to dio_complete direct-io: eliminate the offset argument to ->direct_IO xfs: eliminate the pos variable in xfs_file_dio_aio_write filemap: remove the pos argument to generic_file_direct_write filemap: remove pos variables in generic_file_read_iter
| * | direct-io: eliminate the offset argument to ->direct_IOChristoph Hellwig2016-05-011-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | Including blkdev_direct_IO and dax_do_io. It has to be ki_pos to actually work, so eliminate the superflous argument. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge tag 'jfs-4.7' of git://github.com/kleikamp/linux-shaggyLinus Torvalds2016-05-179-39/+29
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull jfs updates from Dave Kleikamp: "Some jfs logging cleanups from Joe Perches" * tag 'jfs-4.7' of git://github.com/kleikamp/linux-shaggy: jfs: Coalesce some formats jfs: Remove unnecessary line continuations and terminating newlines jfs: Remove terminating newlines from jfs_info, jfs_warn, jfs_err uses
| * | | jfs: Coalesce some formatsJoe Perches2016-03-306-28/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Formats are better kept as a single line for easier grep. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
| * | | jfs: Remove unnecessary line continuations and terminating newlinesJoe Perches2016-03-301-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These jfs_<level> uses need neither a line continuation to assemble the format strings nor newline terminations in the formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
| * | | jfs: Remove terminating newlines from jfs_info, jfs_warn, jfs_err usesJoe Perches2016-03-304-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These macros add the newline so these cause extra blank lines in logging output. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
* | | | Merge getxattr prototype change into work.lookupsAl Viro2016-05-024-12/+6
|\ \ \ \ | |_|/ / |/| | / | | |/ | |/| The rest of work.xattr stuff isn't needed for this branch
| * | ->getxattr(): pass dentry and inode as separate argumentsAl Viro2016-04-112-5/+5
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | don't bother with ->d_inode->i_sb - it's always equal to ->d_sbAl Viro2016-04-101-1/+1
| | | | | | | | | | | | | | | | | | ... and neither can ever be NULL Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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