fs/dcache: init in_lookup_hashtable

in_lookup_hashtable was introduced in commit 94bdd655caba ("parallel
lookups machinery, part 3") and never initialized but since it is in
the data it is all zeros. But we need this for -RT.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/dcache.c b/fs/dcache.c
index a9f995f6859eb19ea3c5cddac19d86512ccf1d1e..b85da8897ffacbd62fd2531f981c01ed2202f518 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3608,6 +3608,11 @@ EXPORT_SYMBOL(d_genocide);
 
 void __init vfs_caches_init_early(void)
 {
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(in_lookup_hashtable); i++)
+               INIT_HLIST_BL_HEAD(&in_lookup_hashtable[i]);
+
        dcache_init_early();
        inode_init_early();
 }