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fs: unconditionally use atime_needs_update() in pick_link()

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Vast majority of the time the func returns false.

This avoids a branch to determine whether we are in RCU mode.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://lore.kernel.org/20250408073641.1799151-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Mateusz Guzik
2025-04-08 09:36:41 +02:00
committed by Christian Brauner
parent c9b380a017
commit e45960c279
1 changed files with 5 additions and 5 deletions
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fs/namei.c
+5 -5
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@@ -1905,13 +1905,13 @@ static const char *pick_link(struct nameidata *nd, struct path *link,
unlikely(link->mnt->mnt_flags & MNT_NOSYMFOLLOW))
return ERR_PTR(-ELOOP);
if (!(nd->flags & LOOKUP_RCU)) {
if (unlikely(atime_needs_update(&last->link, inode))) {
if (nd->flags & LOOKUP_RCU) {
if (!try_to_unlazy(nd))
return ERR_PTR(-ECHILD);
}
touch_atime(&last->link);
cond_resched();
} else if (atime_needs_update(&last->link, inode)) {
if (!try_to_unlazy(nd))
return ERR_PTR(-ECHILD);
touch_atime(&last->link);
}
error = security_inode_follow_link(link->dentry, inode,