Miklos Szeredi 332f606b32 ovl: enable RCU'd ->get_acl() ... Overlayfs does not cache ACL's (to avoid double caching). Instead it just calls the underlying filesystem's i_op->get_acl(), which will return the cached value, if possible. In rcu path walk, however, get_cached_acl_rcu() is employed to get the value from the cache, which will fail on overlayfs resulting in dropping out of rcu walk mode. This can result in a big performance hit in certain situations. Fix by calling ->get_acl() with rcu=true in case of ACL_DONT_CACHE (which indicates pass-through) Reported-by: garyhuang <zjh.20052005@163.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>		2021-08-18 22:08:24 +02:00
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copy_up.c	ovl: use kvalloc in xattr copy-up	2021-08-17 11:47:45 +02:00
dir.c	ovl: fix BUG_ON() in may_delete() when called from ovl_cleanup()	2021-08-17 17:37:53 +02:00
export.c	ovl: fix uninitialized pointer read in ovl_lookup_real_one()	2021-08-10 10:21:30 +02:00
file.c	ovl: fix deadlock in splice write	2021-08-10 10:21:30 +02:00
inode.c	ovl: enable RCU'd ->get_acl()	2021-08-18 22:08:24 +02:00
Kconfig	docs: fix broken references to text files	2020-04-20 15:35:59 -06:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
namei.c	ovl: relax lookup error on mismatch origin ftype	2021-08-17 11:47:44 +02:00
overlayfs.h	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
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: add ovl_allow_offline_changes() helper	2021-08-17 11:47:44 +02:00
util.c	ovl: consistent behavior for immutable/append-only inodes	2021-08-17 11:47:43 +02:00