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Subject[GIT PULL] overlayfs fixes for 4.19-rc4
Hi Linus,

Please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git tags/ovl-fixes-4.19-rc4

This fixes a regression in the recent file stacking update, reported and fixed
by Amir Goldstein. The fix is fairly trivial, but involves adding a fadvise()
f_op and the associated churn in the vfs. As discussed on -fsdevel, there are
other possible uses for this method, than allowing proper stacking for overlays.

And there's one other fix for a syzkaller detected oops.

Thanks,
Miklos

---
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
vfs: add the fadvise() file operation
vfs: implement readahead(2) using POSIX_FADV_WILLNEED
ovl: add ovl_fadvise()

Miklos Szeredi (1):
ovl: fix oopses in ovl_fill_super() failure paths

---
Documentation/filesystems/vfs.txt | 21 +++++++++-
fs/overlayfs/file.c | 23 +++++++++--
fs/overlayfs/inode.c | 10 +++++
fs/overlayfs/super.c | 26 +++++++------
include/linux/fs.h | 5 +++
mm/Makefile | 3 +-
mm/fadvise.c | 81 +++++++++++++++++++++++----------------
mm/readahead.c | 45 ++++++++--------------
8 files changed, 134 insertions(+), 80 deletions(-)

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