Subject: + idr-reduce-the-unneeded-check-in-free_layer.patch added to -mm tree
To: laijs@xxxxxxxxxxxxxx,tj@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 22 Apr 2014 12:40:48 -0700
The patch titled
Subject: idr: reduce the unneeded check in free_layer()
has been added to the -mm tree. Its filename is
idr-reduce-the-unneeded-check-in-free_layer.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/idr-reduce-the-unneeded-check-in-free_layer.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/idr-reduce-the-unneeded-check-in-free_layer.patch
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------------------------------------------------------
From: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Subject: idr: reduce the unneeded check in free_layer()
If "idr->hint == p" is true, it also implies "idr->hint" is true(not NULL).
Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/idr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN lib/idr.c~idr-reduce-the-unneeded-check-in-free_layer lib/idr.c
--- a/lib/idr.c~idr-reduce-the-unneeded-check-in-free_layer
+++ a/lib/idr.c
@@ -145,7 +145,7 @@ static void idr_layer_rcu_free(struct rc
static inline void free_layer(struct idr *idr, struct idr_layer *p)
{
- if (idr->hint && idr->hint == p)
+ if (idr->hint == p)
RCU_INIT_POINTER(idr->hint, NULL);
call_rcu(&p->rcu_head, idr_layer_rcu_free);
}
_
Patches currently in -mm which might be from laijs@xxxxxxxxxxxxxx are
mem-hotplug-implement-get-put_online_mems.patch
slab-get_online_mems-for-kmem_cache_createdestroyshrink.patch
idr-fix-overflow-bug-during-maximum-id-calculation-at-maximum-height.patch
idr-fix-unexpected-id-removal-when-idr_removeunallocated_id.patch
idr-fix-null-pointer-dereference-when-ida_removeunallocated_id.patch
idr-fix-idr_replaces-returned-error-code.patch
idr-dont-need-to-shink-the-free-list-when-idr_remove.patch
idr-reduce-the-unneeded-check-in-free_layer.patch
linux-next.patch
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