Messages in this thread | | | Date | Thu, 13 Sep 2018 20:30:30 +0200 | From | Miklos Szeredi <> | Subject | [GIT PULL] overlayfs fixes for 4.19-rc4 |
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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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