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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-23 07:53:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-23 07:53:36 +0200 |
| commit | 63dafeb392139b893a73b6331f347613f0929702 (patch) | |
| tree | 44f928364b4e48c44b1ffe61d1578535de2a657a /fs/namei.c | |
| parent | b29929b819f35503024c6a7e6ad442f6e36c68a0 (diff) | |
| parent | 86731a2a651e58953fc949573895f2fa6d456841 (diff) | |
| download | net-63dafeb392139b893a73b6331f347613f0929702.tar.gz | |
Merge 6.16-rc3 into driver-core-next
We need the driver-core fixes that are in 6.16-rc3 into here as well
to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/namei.c b/fs/namei.c index 4bb889fc980b7d..f761cafaeaadc4 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2917,7 +2917,8 @@ static int lookup_one_common(struct mnt_idmap *idmap, * @base: base directory to lookup from * * Look up a dentry by name in the dcache, returning NULL if it does not - * currently exist. The function does not try to create a dentry. + * currently exist. The function does not try to create a dentry and if one + * is found it doesn't try to revalidate it. * * Note that this routine is purely a helper for filesystem usage and should * not be called by generic code. It does no permission checking. @@ -2933,7 +2934,7 @@ struct dentry *try_lookup_noperm(struct qstr *name, struct dentry *base) if (err) return ERR_PTR(err); - return lookup_dcache(name, base, 0); + return d_lookup(base, name); } EXPORT_SYMBOL(try_lookup_noperm); @@ -3057,14 +3058,22 @@ EXPORT_SYMBOL(lookup_one_positive_unlocked); * Note that this routine is purely a helper for filesystem usage and should * not be called by generic code. It does no permission checking. * - * Unlike lookup_noperm, it should be called without the parent + * Unlike lookup_noperm(), it should be called without the parent * i_rwsem held, and will take the i_rwsem itself if necessary. + * + * Unlike try_lookup_noperm() it *does* revalidate the dentry if it already + * existed. */ struct dentry *lookup_noperm_unlocked(struct qstr *name, struct dentry *base) { struct dentry *ret; + int err; - ret = try_lookup_noperm(name, base); + err = lookup_noperm_common(name, base); + if (err) + return ERR_PTR(err); + + ret = lookup_dcache(name, base, 0); if (!ret) ret = lookup_slow(name, base, 0); return ret; |