Miklos Szeredi 8641e0bbb5 ovl: warn if trusted xattr creation fails ... [ Upstream commit b10b85fe51 ] When mounting overlayfs in an unprivileged user namespace, trusted xattr creation will fail. This will lead to failures in some file operations, e.g. in the following situation: mkdir lower upper work merged mkdir lower/directory mount -toverlay -olowerdir=lower,upperdir=upper,workdir=work none merged rmdir merged/directory mkdir merged/directory The last mkdir will fail: mkdir: cannot create directory 'merged/directory': Input/output error The cause for these failures is currently extremely non-obvious and hard to debug. Hence, warn the user and suggest using the userxattr mount option, if it is not already supplied and xattr creation fails during the self-check. Reported-by: Alois Wohlschlager <alois1@gmx-topmail.de> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-08-25 11:40:43 +02:00
..
copy_up.c	ovl: fix NULL pointer dereference in copy up warning	2022-02-05 12:38:59 +01:00
dir.c	ovl: fix warning in ovl_create_real()	2021-12-22 09:32:50 +01:00
export.c	ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh()	2022-08-17 14:22:51 +02:00
file.c	ovl: fix use after free in struct ovl_aio_req	2021-11-18 19:16:04 +01:00
inode.c	ovl: fix filattr copy-up failure	2021-11-18 19:16:04 +01:00
Kconfig	docs: fix broken references to text files	2020-04-20 15:35:59 -06:00
Makefile
namei.c	ovl: relax lookup error on mismatch origin ftype	2021-08-17 11:47:44 +02:00
overlayfs.h	ovl: fix warning in ovl_create_real()	2021-12-22 09:32:50 +01:00
ovl_entry.h	ovl: implement volatile-specific fsync error behaviour	2021-01-28 10:22:48 +01:00
readdir.c	ovl: skip stale entries in merge dir cache iteration	2021-08-10 10:21:30 +02:00
super.c	ovl: warn if trusted xattr creation fails	2022-08-25 11:40:43 +02:00
util.c	ovl: consistent behavior for immutable/append-only inodes	2021-08-17 11:47:43 +02:00