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authorThomas Gleixner <tglx@linutronix.de>2013-01-10 09:50:51 +0100
committerSteven Rostedt <rostedt@goodmis.org>2013-10-24 11:06:29 -0400
commitfae28b9afb7c73ef656b912c19d4538cf894cb8b (patch)
tree4c4143b24628cf72aa6efb3e3a70ea90dd6fa33a
parenta2baa78cf06b337e58aaa410574374e3ade00a6e (diff)
downloadlinux-rt-fae28b9afb7c73ef656b912c19d4538cf894cb8b.tar.gz
mm: swap: Initialize local locks early
Cc: stable-rt@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--mm/swap.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 069390f44cfe..662972f4ff24 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -772,6 +772,15 @@ unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping,
EXPORT_SYMBOL(pagevec_lookup);
+/* Early setup for the local locks */
+static int __init swap_init_locks(void)
+{
+ local_irq_lock_init(rotate_lock);
+ local_irq_lock_init(swap_lock);
+ return 1;
+}
+early_initcall(swap_init_locks);
+
unsigned pagevec_lookup_tag(struct pagevec *pvec, struct address_space *mapping,
pgoff_t *index, int tag, unsigned nr_pages)
{
@@ -789,9 +798,6 @@ void __init swap_setup(void)
{
unsigned long megs = totalram_pages >> (20 - PAGE_SHIFT);
- local_irq_lock_init(rotate_lock);
- local_irq_lock_init(swap_lock);
-
#ifdef CONFIG_SWAP
bdi_init(swapper_space.backing_dev_info);
#endif