diff options
| author | NeilBrown <neilb@suse.de> | 2025-02-26 09:18:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-18 15:55:17 +0300 |
| commit | ef97a2a5c1d56de25c3a9dcb18f911ee1007f30b (patch) | |
| tree | 930e849fd116b6ac02413033ec7a954904ef9d33 /include/linux | |
| parent | af4c780b9f1fd270c5e80f8f0c0c70f0ff3d3cc4 (diff) | |
| download | linux-ef97a2a5c1d56de25c3a9dcb18f911ee1007f30b.tar.xz | |
nfs/vfs: discard d_exact_alias()
[ Upstream commit 3ff6c8707c9a0116d00982851ec1216a42053ace ]
d_exact_alias() is a descendent of d_add_unique() which was introduced
20 years ago mostly likely to work around problems with NFS servers of
the time. It is now not used in several situations were it was
originally needed and there have been no reports of problems -
presumably the old NFS servers have been improved. This only place it
is now use is in NFSv4 code and the old problematic servers are thought
to have been v2/v3 only.
There is no clear benefit in reusing a unhashed() dentry which happens
to have the same name as the dentry we are adding.
So this patch removes d_exact_alias() and the one place that it is used.
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20250226062135.2043651-2-neilb@suse.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
Stable-dep-of: 0f900f11002f ("NFS: Initialise verifiers for visible dentries in _nfs4_open_and_get_state")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dcache.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 3d53a6014591..51cc601b863d 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -242,7 +242,6 @@ extern struct dentry * d_splice_alias(struct inode *, struct dentry *); extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *); extern bool d_same_name(const struct dentry *dentry, const struct dentry *parent, const struct qstr *name); -extern struct dentry * d_exact_alias(struct dentry *, struct inode *); extern struct dentry *d_find_any_alias(struct inode *inode); extern struct dentry * d_obtain_alias(struct inode *); extern struct dentry * d_obtain_root(struct inode *); |