Jetpack/kernel/kernel-4.9/rt-patches/0036-fs-dcache-init-in_look...

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Diff

From a81cf2d87b3ddeb320b99456401da1864f0f5574 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 14 Sep 2016 17:57:03 +0200
Subject: [PATCH 036/352] 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.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
fs/dcache.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/dcache.c b/fs/dcache.c
index 183e0ae..1fa3ca8 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -3675,6 +3675,11 @@ 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();
}
--
2.7.4