diff options
| author | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:30:07 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:30:07 (GMT) |
| commit | e5fc662387b40984ed4b7a14477cc659f4d80b94 (patch) | |
| tree | cf60ec2e653100003e59216306e241a4485c7d4f /mm/vmpressure.c | |
| parent | fa2b857e85998a6843c1a6843446ff00067fa3a4 (diff) | |
| parent | 38bff34aef9a92ba18386e801604824856883b32 (diff) | |
| download | linux-fsl-qoriq-e5fc662387b40984ed4b7a14477cc659f4d80b94.tar.xz | |
Merge branch 'rtmerge'
Signed-off-by: Scott Wood <scottwood@freescale.com>
Conflicts:
arch/arm/kvm/mmu.c
arch/arm/mm/proc-v7-3level.S
arch/powerpc/kernel/vdso32/getcpu.S
drivers/crypto/caam/error.c
drivers/crypto/caam/sg_sw_sec4.h
drivers/usb/host/ehci-fsl.c
Diffstat (limited to 'mm/vmpressure.c')
| -rw-r--r-- | mm/vmpressure.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/vmpressure.c b/mm/vmpressure.c index e0f6283..c98b14e 100644 --- a/mm/vmpressure.c +++ b/mm/vmpressure.c @@ -164,6 +164,7 @@ static void vmpressure_work_fn(struct work_struct *work) unsigned long scanned; unsigned long reclaimed; + spin_lock(&vmpr->sr_lock); /* * Several contexts might be calling vmpressure(), so it is * possible that the work was rescheduled again before the old @@ -172,11 +173,12 @@ static void vmpressure_work_fn(struct work_struct *work) * here. No need for any locks here since we don't care if * vmpr->reclaimed is in sync. */ - if (!vmpr->scanned) + scanned = vmpr->scanned; + if (!scanned) { + spin_unlock(&vmpr->sr_lock); return; + } - spin_lock(&vmpr->sr_lock); - scanned = vmpr->scanned; reclaimed = vmpr->reclaimed; vmpr->scanned = 0; vmpr->reclaimed = 0; |