Al Viro 3c70569e17 new helper: lookup_positive_unlocked() ... [ Upstream commit 6c2d4798a8 ] Most of the callers of lookup_one_len_unlocked() treat negatives are ERR_PTR(-ENOENT). Provide a helper that would do just that. Note that a pinned positive dentry remains positive - it's ->d_inode is stable, etc.; a pinned _negative_ dentry can become positive at any point as long as you are not holding its parent at least shared. So using lookup_one_len_unlocked() needs to be careful; lookup_positive_unlocked() is safer and that's what the callers end up open-coding anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Stable-dep-of: 0d5a4f8f77 ("fs: Fix error checking for d_hash_and_lookup()") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-09-23 10:47:59 +02:00
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copy_up.c	treewide: Remove uninitialized_var() usage	2023-08-11 11:45:01 +02:00
dir.c	ovl: Use ovl mounter's fsuid and fsgid in ovl_link()	2023-01-18 11:30:40 +01:00
export.c	ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh()	2022-08-25 11:14:54 +02:00
file.c	ovl: fix unneeded call to ovl_change_flags()	2020-07-22 09:32:10 +02:00
inode.c	ovl: perform vfs_getxattr() with mounter creds	2021-02-23 15:00:56 +01:00
Kconfig	ovl: Provide a mount option metacopy=on/off for metadata copyup	2018-07-20 09:56:06 +02:00
Makefile	ovl: stack file ops	2018-07-18 15:44:41 +02:00
namei.c	new helper: lookup_positive_unlocked()	2023-09-23 10:47:59 +02:00
overlayfs.h	ovl: fix warning in ovl_create_real()	2021-12-22 09:19:04 +01:00
ovl_entry.h	ovl: fix regression caused by overlapping layers detection	2019-09-21 07:17:14 +02:00
readdir.c	ovl: fix wrong WARN_ON() in ovl_cache_update_ino()	2020-02-11 04:34:02 -08:00
super.c	ovl: fix warning in ovl_create_real()	2021-12-22 09:19:04 +01:00
util.c	ovl: detect overlapping layers	2019-06-25 11:35:52 +08:00