fs/dcache.c: fix spin lockup issue on nlru->lock

[platform/kernel/linux-exynos.git] / fs / dcache.c

diff --git a/fs/dcache.c b/fs/dcache.c
index 7ece68d..6c30be6 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1160,11 +1160,12 @@ void shrink_dcache_sb(struct super_block *sb)
                LIST_HEAD(dispose);
 
                freed = list_lru_walk(&sb->s_dentry_lru,
-                       dentry_lru_isolate_shrink, &dispose, UINT_MAX);
+                       dentry_lru_isolate_shrink, &dispose, 1024);
 
                this_cpu_sub(nr_dentry_unused, freed);
                shrink_dentry_list(&dispose);
-       } while (freed > 0);
+               cond_resched();
+       } while (list_lru_count(&sb->s_dentry_lru) > 0);
 }
 EXPORT_SYMBOL(shrink_dcache_sb);