From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 14 Sep 2018 05:21:40 +0000 (-1000)
Subject: Merge tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszer... 
X-Git-Tag: v5.15~8012
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=48751b562bce96c4284885571da1bdda7673f38e;p=platform%2Fkernel%2Flinux-starfive.git

Merge tag 'ovl-fixes-4.19-rc4' of git://git./linux/kernel/git/mszeredi/vfs

Pull overlayfs fixes from Miklos Szeredi:
 "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"

* tag 'ovl-fixes-4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: fix oopses in ovl_fill_super() failure paths
  ovl: add ovl_fadvise()
  vfs: implement readahead(2) using POSIX_FADV_WILLNEED
  vfs: add the fadvise() file operation
  Documentation/filesystems: update documentation of file_operations
  ovl: fix GPF in swapfile_activate of file from overlayfs over xfs
  ovl: respect FIEMAP_FLAG_SYNC flag
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48751b562bce96c4284885571da1bdda7673f38e