diff options
| author | Luis Henriques <luis@igalia.com> | 2025-09-16 14:53:07 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2025-11-12 11:45:03 +0100 |
| commit | 395b95530343e7f4bdd2870190d985a222997fb6 (patch) | |
| tree | e0e4bb02d1228fc223b3540dd77213e32970aa27 /fs/dcache.c | |
| parent | 66c6a77e00a2f28330cca90c67339111cd54e54b (diff) | |
dcache: export shrink_dentry_list() and add new helper d_dispose_if_unused()
Add and export a new helper d_dispose_if_unused() which is simply a wrapper
around to_shrink_list(), to add an entry to a dispose list if it's not used
anymore.
Also export shrink_dentry_list() to kill all dentries in a dispose list.
Suggested-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Luis Henriques <luis@igalia.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 035cccbc9276..bffb1b47a907 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1086,6 +1086,15 @@ struct dentry *d_find_alias_rcu(struct inode *inode) return de; } +void d_dispose_if_unused(struct dentry *dentry, struct list_head *dispose) +{ + spin_lock(&dentry->d_lock); + if (!dentry->d_lockref.count) + to_shrink_list(dentry, dispose); + spin_unlock(&dentry->d_lock); +} +EXPORT_SYMBOL(d_dispose_if_unused); + /* * Try to kill dentries associated with this inode. * WARNING: you must own a reference to inode. @@ -1096,12 +1105,8 @@ void d_prune_aliases(struct inode *inode) struct dentry *dentry; spin_lock(&inode->i_lock); - hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) { - spin_lock(&dentry->d_lock); - if (!dentry->d_lockref.count) - to_shrink_list(dentry, &dispose); - spin_unlock(&dentry->d_lock); - } + hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) + d_dispose_if_unused(dentry, &dispose); spin_unlock(&inode->i_lock); shrink_dentry_list(&dispose); } @@ -1141,6 +1146,7 @@ void shrink_dentry_list(struct list_head *list) shrink_kill(dentry); } } +EXPORT_SYMBOL(shrink_dentry_list); static enum lru_status dentry_lru_isolate(struct list_head *item, struct list_lru_one *lru, void *arg) |