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[Qemu-devel] [PATCH 1/9] Revert "mm: compaction: check lock contention f
From: |
Mel Gorman |
Subject: |
[Qemu-devel] [PATCH 1/9] Revert "mm: compaction: check lock contention first before taking lock" |
Date: |
Fri, 21 Sep 2012 11:46:15 +0100 |
This reverts
mm-compaction-check-lock-contention-first-before-taking-lock.patch as it
is replaced by a later patch in the series.
Signed-off-by: Mel Gorman <address@hidden>
---
mm/compaction.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 3bb7232..4a77b4b 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -347,9 +347,8 @@ isolate_migratepages_range(struct zone *zone, struct
compact_control *cc,
/* Time to isolate some pages for migration */
cond_resched();
- locked = compact_trylock_irqsave(&zone->lru_lock, &flags, cc);
- if (!locked)
- return 0;
+ spin_lock_irqsave(&zone->lru_lock, flags);
+ locked = true;
for (; low_pfn < end_pfn; low_pfn++) {
struct page *page;
--
1.7.9.2
- [Qemu-devel] [PATCH 0/9] Reduce compaction scanning and lock contention, Mel Gorman, 2012/09/21
- [Qemu-devel] [PATCH 2/9] Revert "mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long-fix", Mel Gorman, 2012/09/21
- [Qemu-devel] [PATCH 3/9] Revert "mm: compaction: abort compaction loop if lock is contended or run too long", Mel Gorman, 2012/09/21
- [Qemu-devel] [PATCH 1/9] Revert "mm: compaction: check lock contention first before taking lock",
Mel Gorman <=
- [Qemu-devel] [PATCH 7/9] Revert "mm: have order > 0 compaction start off where it left", Mel Gorman, 2012/09/21
- [Qemu-devel] [PATCH 6/9] mm: compaction: Acquire the zone->lock as late as possible, Mel Gorman, 2012/09/21
- Re: [Qemu-devel] [PATCH 6/9] mm: compaction: Acquire the zone->lock as late as possible, Minchan Kim, 2012/09/25