[PATCH] Revert "percpu: free percpu allocation info for uniprocessor system"

* [PATCH] Revert "percpu: free percpu allocation info for uniprocessor system"
@ 2014-09-21 22:04 Guenter Roeck
  2014-09-22  4:02 ` Tejun Heo
  0 siblings, 1 reply; 2+ messages in thread
From: Guenter Roeck @ 2014-09-21 22:04 UTC (permalink / raw)
  To: linux-mm
  Cc: Christoph Lameter, linux-kernel, Guenter Roeck, Tejun Heo, Honggang Li

This reverts commit 3189eddbcafc ("percpu: free percpu allocation info for
uniprocessor system").

The commit causes a hang with a crisv32 image. This may be an architecture
problem, but at least for now the revert is necessary to be able to boot a
crisv32 image.

Fixes: 3189eddbcafc ("percpu: free percpu allocation info for uniprocessor system")
Cc: Tejun Heo <tj@kernel.org>
Cc: Honggang Li <enjoymindful@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
Resent as non-RFC patch per Tejun's request.

 mm/percpu.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index da997f9..2139e30 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1932,8 +1932,6 @@ void __init setup_per_cpu_areas(void)
 
 	if (pcpu_setup_first_chunk(ai, fc) < 0)
 		panic("Failed to initialize percpu areas.");
-
-	pcpu_free_alloc_info(ai);
 }
 
 #endif	/* CONFIG_SMP */
-- 
1.9.1


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