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* [PATCH v3 0/6] Overlayfs stacked f_op fixes
@ 2018-08-27 12:55 Amir Goldstein
  2018-08-27 12:55 ` [PATCH v3 1/6] ovl: respect FIEMAP_FLAG_SYNC flag Amir Goldstein
                   ` (5 more replies)
  0 siblings, 6 replies; 14+ messages in thread
From: Amir Goldstein @ 2018-08-27 12:55 UTC (permalink / raw)
  To: Miklos Szeredi; +Cc: Al Viro, Dave Chinner, linux-unionfs, linux-fsdevel

Miklos,

Following are fixes to some stacked f_op regressions, also
available on my ovl-fixes branch [1].

Patches 1-2 fix fiemap() and swapon() regressions detected
by xfstests (no change from v2).

Patches 3-6 implement the fadvise() file operation in overlayfs
to fix fadvise64(2) and readahead(2) syscalls, per your suggestion.

Correctness and error cases of readahead(2) were verified with the LTP
readahead tests including a new overlayfs readahead test [2].
Error cases of fadvise64(2) were verified with the LTP fadvise tests,
but correctness is not yet covered by those tests.

Thanks,
Amir.

Changes from v2:
- avoid file_real() vfs hack
- implement ovl_fadvise()
- update vfs.txt

[1] https://github.com/amir73il/linux/commits/ovl-fixes
[2] https://github.com/amir73il/ltp/commits/overlayfs-devel

Amir Goldstein (6):
  ovl: respect FIEMAP_FLAG_SYNC flag
  ovl: fix GPF in swapfile_activate of file from overlayfs over xfs
  Documentation/filesystems: update documentation of file_operations to
    kernel 4.18
  vfs: add the fadvise() file operation
  vfs: implement readahead(2) using POSIX_FADV_WILLNEED
  ovl: add ovl_fadvise()

 Documentation/filesystems/vfs.txt | 25 +++++++++++--
 fs/overlayfs/file.c               | 21 +++++++++--
 fs/overlayfs/inode.c              | 10 +++++
 include/linux/fs.h                |  5 +++
 mm/fadvise.c                      | 78 ++++++++++++++++++++++-----------------
 mm/readahead.c                    | 28 ++++++--------
 6 files changed, 110 insertions(+), 57 deletions(-)

-- 
2.7.4

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2019-12-28 10:10 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-08-27 12:55 [PATCH v3 0/6] Overlayfs stacked f_op fixes Amir Goldstein
2018-08-27 12:55 ` [PATCH v3 1/6] ovl: respect FIEMAP_FLAG_SYNC flag Amir Goldstein
2018-08-27 12:56 ` [PATCH v3 2/6] ovl: fix GPF in swapfile_activate of file from overlayfs over xfs Amir Goldstein
2018-08-27 12:56 ` [PATCH v3 3/6] Documentation/filesystems: update documentation of file_operations to kernel 4.18 Amir Goldstein
2018-08-27 12:56 ` [PATCH v3 4/6] vfs: add the fadvise() file operation Amir Goldstein
2018-08-27 13:56   ` Steve French
2018-08-27 12:56 ` [PATCH v3 5/6] vfs: implement readahead(2) using POSIX_FADV_WILLNEED Amir Goldstein
2018-08-27 23:30   ` Dave Chinner
2018-08-27 12:56 ` [PATCH v3 6/6] ovl: add ovl_fadvise() Amir Goldstein
2018-08-27 18:52   ` Vivek Goyal
2018-08-27 19:05     ` Amir Goldstein
2018-08-27 19:29       ` Miklos Szeredi
2019-12-28  5:49   ` Andreas Dilger
2019-12-28 10:10     ` Amir Goldstein

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