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-rw-r--r--fs/cachefiles/cache.c35
-rw-r--r--fs/cachefiles/volume.c1
2 files changed, 34 insertions, 2 deletions
diff --git a/fs/cachefiles/cache.c b/fs/cachefiles/cache.c
index 56ef519a36a0..9fb06dc16520 100644
--- a/fs/cachefiles/cache.c
+++ b/fs/cachefiles/cache.c
@@ -313,7 +313,39 @@ static void cachefiles_withdraw_objects(struct cachefiles_cache *cache)
}
/*
- * Withdraw volumes.
+ * Withdraw fscache volumes.
+ */
+static void cachefiles_withdraw_fscache_volumes(struct cachefiles_cache *cache)
+{
+ struct list_head *cur;
+ struct cachefiles_volume *volume;
+ struct fscache_volume *vcookie;
+
+ _enter("");
+retry:
+ spin_lock(&cache->object_list_lock);
+ list_for_each(cur, &cache->volumes) {
+ volume = list_entry(cur, struct cachefiles_volume, cache_link);
+
+ if (atomic_read(&volume->vcookie->n_accesses) == 0)
+ continue;
+
+ vcookie = fscache_try_get_volume(volume->vcookie,
+ fscache_volume_get_withdraw);
+ if (vcookie) {
+ spin_unlock(&cache->object_list_lock);
+ fscache_withdraw_volume(vcookie);
+ fscache_put_volume(vcookie, fscache_volume_put_withdraw);
+ goto retry;
+ }
+ }
+ spin_unlock(&cache->object_list_lock);
+
+ _leave("");
+}
+
+/*
+ * Withdraw cachefiles volumes.
*/
static void cachefiles_withdraw_volumes(struct cachefiles_cache *cache)
{
@@ -381,6 +413,7 @@ void cachefiles_withdraw_cache(struct cachefiles_cache *cache)
pr_info("File cache on %s unregistering\n", fscache->name);
fscache_withdraw_cache(fscache);
+ cachefiles_withdraw_fscache_volumes(cache);
/* we now have to destroy all the active objects pertaining to this
* cache - which we do by passing them off to thread pool to be
diff --git a/fs/cachefiles/volume.c b/fs/cachefiles/volume.c
index 89df0ba8ba5e..781aac4ef274 100644
--- a/fs/cachefiles/volume.c
+++ b/fs/cachefiles/volume.c
@@ -133,7 +133,6 @@ void cachefiles_free_volume(struct fscache_volume *vcookie)
void cachefiles_withdraw_volume(struct cachefiles_volume *volume)
{
- fscache_withdraw_volume(volume->vcookie);
cachefiles_set_volume_xattr(volume);
__cachefiles_free_volume(volume);
}