linux.git/fs/ext4/fsync.c, branch v4.13

ext4: use errseq_t based error handling for reporting data writeback errors

2017-07-06T11:02:30+00:00

Add a call to filemap_report_wb_err at the end of ext4_sync_file. This
will ensure that we check and advance the errseq_t in the file, which
allows us to track and report errors on all open fds when they occur.

Signed-off-by: Jeff Layton

ext4: add shutdown bit and check for it

2017-02-05T06:28:48+00:00

Add a shutdown bit that will cause ext4 processing to fail immediately
with EIO.

Signed-off-by: Theodore Ts'o

ext4: cleanup ext4_sync_parent()

2016-09-06T03:21:43+00:00

A condition !hlist_empty(&inode->i_dentry) is always true for open file.
Just remove it. Also ext4_sync_parent() could use some explanation why
races with rmdir() are not an issue - add a comment explaining that.

Reported-by: Al Viro 
Signed-off-by: Jan Kara 
Signed-off-by: Theodore Ts'o

ext4: respect the nobarrier mount option in nojournal mode

2016-06-26T22:25:01+00:00

Also, if we are going to issue the barrier, we should do this after we
write out the parent directories if necessary.

Signed-off-by: Theodore Ts'o 
Reviewed-by: Jan Kara

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-04-27T00:22:07+00:00

Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15T19:06:57+00:00

that's the bulk of filesystem drivers dealing with inodes of their own

Signed-off-by: David Howells 
Signed-off-by: Al Viro

ext4: remove unused header files

2015-04-03T03:47:42+00:00

Remove unused header files and header files which are included in
ext4.h.

Signed-off-by: Sheng Yong 
Signed-off-by: Theodore Ts'o

ext4: Fix fsync error handling after filesystem abort

2013-06-13T02:38:04+00:00

If filesystem was aborted after inode's write back is complete
but before its metadata was updated we may return success
results in data loss.
In order to handle fs abort correctly we have to check
fs state once we discover that it is in MS_RDONLY state

Test case: http://patchwork.ozlabs.org/patch/244297

Reviewed-by: Jan Kara 
Signed-off-by: Dmitry Monakhov 
Signed-off-by: "Theodore Ts'o"

ext4: remove i_mutex from ext4_file_sync()

2013-06-04T18:40:39+00:00

After removal of ext4_flush_unwritten_io() call, ext4_file_sync()
doesn't need i_mutex anymore. Forcing of transaction commits doesn't
need i_mutex as there's nothing inode specific in that code apart from
grabbing transaction ids from the inode. So remove the lock.

Reviewed-by: Zheng Liu 
Signed-off-by: Jan Kara 
Signed-off-by: "Theodore Ts'o"

ext4: use generic_file_fsync() in ext4_file_fsync() in nojournal mode

2013-06-04T18:40:09+00:00

Just use the generic function instead of duplicating it.  We only need
to reshuffle the read-only check a bit (which is there to prevent
writing to a filesystem which has been remounted read-only after error
I assume).

Reviewed-by: Zheng Liu 
Signed-off-by: Jan Kara 
Signed-off-by: "Theodore Ts'o"