Miklos Szeredi 83552eacdf ovl: fix WARN_ON nlink drop to zero ... Changes to underlying layers should not cause WARN_ON(), but this repro does: mkdir w l u mnt sudo mount -t overlay -o workdir=w,lowerdir=l,upperdir=u overlay mnt touch mnt/h ln u/h u/k rm -rf mnt/k rm -rf mnt/h dmesg ------------[ cut here ]------------ WARNING: CPU: 1 PID: 116244 at fs/inode.c:302 drop_nlink+0x28/0x40 After upper hardlinks were added while overlay is mounted, unlinking all overlay hardlinks drops overlay nlink to zero before all upper inodes are unlinked. After unlink/rename prevent i_nlink from going to zero if there are still hashed aliases (i.e. cached hard links to the victim) remaining. Reported-by: Phasip <phasip@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>		2020-03-27 16:51:02 +01:00
..
copy_up.c	ovl: ignore failure to copy up unknown xattrs	2020-03-17 15:04:22 +01:00
dir.c	ovl: fix WARN_ON nlink drop to zero	2020-03-27 16:51:02 +01:00
export.c	ovl: ovl_obtain_alias(): don't call d_instantiate_anon() for old	2020-03-17 15:04:23 +01:00
file.c	ovl: fix lockdep warning for async write	2020-03-13 15:53:06 +01:00
inode.c	ovl: fix a typo in comment	2020-03-17 15:04:23 +01:00
Kconfig	ovl: fix some xino configurations	2020-03-13 15:53:06 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
namei.c	ovl: allow remote upper	2020-03-17 15:04:22 +01:00
overlayfs.h	ovl: replace zero-length array with flexible-array member	2020-03-17 15:04:23 +01:00
ovl_entry.h	ovl: layer is const	2020-01-24 09:46:45 +01:00
readdir.c	ovl: layer is const	2020-01-24 09:46:45 +01:00
super.c	ovl: strict upper fs requirements for remote upper fs	2020-03-17 15:04:23 +01:00
util.c	ovl: allow remote upper	2020-03-17 15:04:22 +01:00