diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2023-11-07 15:21:33 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2023-11-25 02:33:41 -0500 |
| commit | 3fcf535626a44e107e2d536a2c43da0fb5bde121 (patch) | |
| tree | 7ce182859df02b55fcad0dd6f12652a301b7abf5 /fs/dcache.c | |
| parent | dentry: switch the lists of children to hlist (diff) | |
| download | wireguard-linux-3fcf535626a44e107e2d536a2c43da0fb5bde121.tar.xz wireguard-linux-3fcf535626a44e107e2d536a2c43da0fb5bde121.zip | |
centralize killing dentry from shrink list
new helper unifying identical bits of shrink_dentry_list() and
shring_dcache_for_umount()
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 59f76c9a15d1..bb862a304e1b 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1174,10 +1174,18 @@ out: return false; } +static inline void shrink_kill(struct dentry *victim, struct list_head *list) +{ + struct dentry *parent = victim->d_parent; + if (parent != victim) + __dput_to_list(parent, list); + __dentry_kill(victim); +} + void shrink_dentry_list(struct list_head *list) { while (!list_empty(list)) { - struct dentry *dentry, *parent; + struct dentry *dentry; dentry = list_entry(list->prev, struct dentry, d_lru); spin_lock(&dentry->d_lock); @@ -1195,10 +1203,7 @@ void shrink_dentry_list(struct list_head *list) } rcu_read_unlock(); d_shrink_del(dentry); - parent = dentry->d_parent; - if (parent != dentry) - __dput_to_list(parent, list); - __dentry_kill(dentry); + shrink_kill(dentry, list); } } @@ -1629,17 +1634,13 @@ void shrink_dcache_parent(struct dentry *parent) data.victim = NULL; d_walk(parent, &data, select_collect2); if (data.victim) { - struct dentry *parent; spin_lock(&data.victim->d_lock); if (!shrink_lock_dentry(data.victim)) { spin_unlock(&data.victim->d_lock); rcu_read_unlock(); } else { rcu_read_unlock(); - parent = data.victim->d_parent; - if (parent != data.victim) - __dput_to_list(parent, &data.dispose); - __dentry_kill(data.victim); + shrink_kill(data.victim, &data.dispose); } } if (!list_empty(&data.dispose)) |