linux-kernel - [RFC PATCH v1 61/70] md, raid5:

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Message-Id: <1406080786-3938-62-git-send-email-gong.chen@linux.intel.com>
Date:	Tue, 22 Jul 2014 21:59:37 -0400
From:	"Chen, Gong" <gong.chen@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, tglx@...utronix.de, paulus@...ba.org,
	benh@...nel.crashing.org, tony.luck@...el.com, hpa@...or.com,
	jkosina@...e.cz, rafael.j.wysocki@...el.com, bp@...en8.de,
	linux@....linux.org.uk, ralf@...ux-mips.org,
	schwidefsky@...ibm.com, davem@...emloft.net,
	viro@...iv.linux.org.uk, fweisbec@...il.com, cl@...ux.com,
	akpm@...ux-foundation.org, axboe@...nel.dk,
	JBottomley@...allels.com, neilb@...e.de,
	christoffer.dall@...aro.org, rostedt@...dmis.org, rric@...nel.org,
	gregkh@...uxfoundation.org, mhocko@...e.cz, david@...morbit.com,
	"Chen, Gong" <gong.chen@...ux.intel.com>
Subject: [RFC PATCH v1 61/70] md, raid5: _FROZEN Cleanup

Remove XXX_FROZEN state from md/raid5.

Signed-off-by: Chen, Gong <gong.chen@...ux.intel.com>
---
 drivers/md/raid5.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 6234b2e..3d76235 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5665,9 +5665,8 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
 	long cpu = (long)hcpu;
 	struct raid5_percpu *percpu = per_cpu_ptr(conf->percpu, cpu);
 
-	switch (action) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
 		if (alloc_scratch_buffer(conf, percpu)) {
 			pr_err("%s: failed memory allocation for cpu%ld\n",
 			       __func__, cpu);
@@ -5675,7 +5674,6 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
 		}
 		break;
 	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
 		free_scratch_buffer(conf, per_cpu_ptr(conf->percpu, cpu));
 		break;
 	default:
-- 
2.0.0.rc2

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