The patch titled
mm: revert page_lock_anon_vma() lock annotation
has been removed from the -mm tree. Its filename was
mm-revert-page_lock_anon_vma-lock-annotation.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm: revert page_lock_anon_vma() lock annotation
From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Its beyond ugly and gets in the way.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Acked-by: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Nick Piggin <npiggin@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/rmap.h | 15 +--------------
mm/rmap.c | 4 +---
2 files changed, 2 insertions(+), 17 deletions(-)
diff -puN include/linux/rmap.h~mm-revert-page_lock_anon_vma-lock-annotation include/linux/rmap.h
--- a/include/linux/rmap.h~mm-revert-page_lock_anon_vma-lock-annotation
+++ a/include/linux/rmap.h
@@ -219,20 +219,7 @@ int try_to_munlock(struct page *);
/*
* Called by memory-failure.c to kill processes.
*/
-struct anon_vma *__page_lock_anon_vma(struct page *page);
-
-static inline struct anon_vma *page_lock_anon_vma(struct page *page)
-{
- struct anon_vma *anon_vma;
-
- __cond_lock(RCU, anon_vma = __page_lock_anon_vma(page));
-
- /* (void) is needed to make gcc happy */
- (void) __cond_lock(&anon_vma->root->lock, anon_vma);
-
- return anon_vma;
-}
-
+struct anon_vma *page_lock_anon_vma(struct page *page);
void page_unlock_anon_vma(struct anon_vma *anon_vma);
int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma);
diff -puN mm/rmap.c~mm-revert-page_lock_anon_vma-lock-annotation mm/rmap.c
--- a/mm/rmap.c~mm-revert-page_lock_anon_vma-lock-annotation
+++ a/mm/rmap.c
@@ -323,7 +323,7 @@ void __init anon_vma_init(void)
* Getting a lock on a stable anon_vma from a page off the LRU is
* tricky: page_lock_anon_vma rely on RCU to guard against the races.
*/
-struct anon_vma *__page_lock_anon_vma(struct page *page)
+struct anon_vma *page_lock_anon_vma(struct page *page)
{
struct anon_vma *anon_vma, *root_anon_vma;
unsigned long anon_mapping;
@@ -357,8 +357,6 @@ out:
}
void page_unlock_anon_vma(struct anon_vma *anon_vma)
- __releases(&anon_vma->root->lock)
- __releases(RCU)
{
anon_vma_unlock(anon_vma);
rcu_read_unlock();
_
Patches currently in -mm which might be from a.p.zijlstra@xxxxxxxxx are
origin.patch
linux-next.patch
cpumask-convert-cpumask_of_cpu-to-cpumask_of.patch
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