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Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index e368d4f412f9..d04be762b216 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -400,19 +400,20 @@ static void d_shrink_add(struct dentry *dentry, struct list_head *list)
* LRU lists entirely, while shrink_move moves it to the indicated
* private list.
*/
-static void d_lru_isolate(struct dentry *dentry)
+static void d_lru_isolate(struct list_lru_one *lru, struct dentry *dentry)
{
D_FLAG_VERIFY(dentry, DCACHE_LRU_LIST);
dentry->d_flags &= ~DCACHE_LRU_LIST;
this_cpu_dec(nr_dentry_unused);
- list_del_init(&dentry->d_lru);
+ list_lru_isolate(lru, &dentry->d_lru);
}
-static void d_lru_shrink_move(struct dentry *dentry, struct list_head *list)
+static void d_lru_shrink_move(struct list_lru_one *lru, struct dentry *dentry,
+ struct list_head *list)
{
D_FLAG_VERIFY(dentry, DCACHE_LRU_LIST);
dentry->d_flags |= DCACHE_SHRINK_LIST;
- list_move_tail(&dentry->d_lru, list);
+ list_lru_isolate_move(lru, &dentry->d_lru, list);
}
/*
@@ -869,8 +870,8 @@ static void shrink_dentry_list(struct list_head *list)
}
}
-static enum lru_status
-dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
+static enum lru_status dentry_lru_isolate(struct list_head *item,
+ struct list_lru_one *lru, spinlock_t *lru_lock, void *arg)
{
struct list_head *freeable = arg;
struct dentry *dentry = container_of(item, struct dentry, d_lru);
@@ -890,7 +891,7 @@ dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
* another pass through the LRU.
*/
if (dentry->d_lockref.count) {
- d_lru_isolate(dentry);
+ d_lru_isolate(lru, dentry);
spin_unlock(&dentry->d_lock);
return LRU_REMOVED;
}
@@ -921,7 +922,7 @@ dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
return LRU_ROTATE;
}
- d_lru_shrink_move(dentry, freeable);
+ d_lru_shrink_move(lru, dentry, freeable);
spin_unlock(&dentry->d_lock);
return LRU_REMOVED;
@@ -930,30 +931,28 @@ dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
/**
* prune_dcache_sb - shrink the dcache
* @sb: superblock
- * @nr_to_scan : number of entries to try to free
- * @nid: which node to scan for freeable entities
+ * @sc: shrink control, passed to list_lru_shrink_walk()
*
- * Attempt to shrink the superblock dcache LRU by @nr_to_scan entries. This is
- * done when we need more memory an called from the superblock shrinker
+ * Attempt to shrink the superblock dcache LRU by @sc->nr_to_scan entries. This
+ * is done when we need more memory and called from the superblock shrinker
* function.
*
* This function may fail to free any resources if all the dentries are in
* use.
*/
-long prune_dcache_sb(struct super_block *sb, unsigned long nr_to_scan,
- int nid)
+long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc)
{
LIST_HEAD(dispose);
long freed;
- freed = list_lru_walk_node(&sb->s_dentry_lru, nid, dentry_lru_isolate,
- &dispose, &nr_to_scan);
+ freed = list_lru_shrink_walk(&sb->s_dentry_lru, sc,
+ dentry_lru_isolate, &dispose);
shrink_dentry_list(&dispose);
return freed;
}
static enum lru_status dentry_lru_isolate_shrink(struct list_head *item,
- spinlock_t *lru_lock, void *arg)
+ struct list_lru_one *lru, spinlock_t *lru_lock, void *arg)
{
struct list_head *freeable = arg;
struct dentry *dentry = container_of(item, struct dentry, d_lru);
@@ -966,7 +965,7 @@ static enum lru_status dentry_lru_isolate_shrink(struct list_head *item,
if (!spin_trylock(&dentry->d_lock))
return LRU_SKIP;
- d_lru_shrink_move(dentry, freeable);
+ d_lru_shrink_move(lru, dentry, freeable);
spin_unlock(&dentry->d_lock);
return LRU_REMOVED;