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mm: convert anon_vma->lock to a mutex

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Straightforward conversion of anon_vma->lock to a mutex.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Miller <davem@davemloft.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Tony Luck <tony.luck@intel.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra
2011-05-24 17:12:11 -07:00
committed by Linus Torvalds
parent 746b18d421
commit 2b575eb64f
6 changed files with 21 additions and 25 deletions
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4
mm/huge_memory.c
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@ -1139,7 +1139,7 @@ static int __split_huge_page_splitting(struct page *page,
* We can't temporarily set the pmd to null in order
* to split it, the pmd must remain marked huge at all
* times or the VM won't take the pmd_trans_huge paths
* and it won't wait on the anon_vma->root->lock to
* and it won't wait on the anon_vma->root->mutex to
* serialize against split_huge_page*.
*/
pmdp_splitting_flush_notify(vma, address, pmd);
@ -1333,7 +1333,7 @@ static int __split_huge_page_map(struct page *page,
return ret;
}
/* must be called with anon_vma->root->lock hold */
/* must be called with anon_vma->root->mutex hold */
static void __split_huge_page(struct page *page,
struct anon_vma *anon_vma)
{