md: refresh raid5 patch
diff --git a/patches/md-raid5-percpu-handling-rt-aware.patch b/patches/md-raid5-percpu-handling-rt-aware.patch
index d233296..6daf763 100644
--- a/patches/md-raid5-percpu-handling-rt-aware.patch
+++ b/patches/md-raid5-percpu-handling-rt-aware.patch
@@ -1,6 +1,7 @@
+From c1dc509be2d2ff1dfe15d814c3b9df30d5e69f79 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 6 Apr 2010 16:51:31 +0200
-Subject: md: raid5: Make raid5_percpu handling RT aware
+Subject: [PATCH] md: raid5: Make raid5_percpu handling RT aware
__raid_run_ops() disables preemption with get_cpu() around the access
to the raid5_percpu variables. That causes scheduling while atomic
@@ -13,14 +14,11 @@
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Udo van den Heuvel <udovdh@xs4all.nl>
----
- drivers/md/raid5.c | 7 +++++--
- drivers/md/raid5.h | 1 +
- 2 files changed, 6 insertions(+), 2 deletions(-)
-
+diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
+index da583bb43c84..b377a9c51ec2 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
-@@ -1918,8 +1918,9 @@ static void raid_run_ops(struct stripe_h
+@@ -1928,8 +1928,9 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
struct raid5_percpu *percpu;
unsigned long cpu;
@@ -31,7 +29,7 @@
if (test_bit(STRIPE_OP_BIOFILL, &ops_request)) {
ops_run_biofill(sh);
overlap_clear++;
-@@ -1975,7 +1976,8 @@ static void raid_run_ops(struct stripe_h
+@@ -1985,7 +1986,8 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
if (test_and_clear_bit(R5_Overlap, &dev->flags))
wake_up(&sh->raid_conf->wait_for_overlap);
}
@@ -40,8 +38,8 @@
+ put_cpu_light();
}
- static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp)
-@@ -6415,6 +6417,7 @@ static int raid5_alloc_percpu(struct r5c
+ static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp,
+@@ -6438,6 +6440,7 @@ static int raid5_alloc_percpu(struct r5conf *conf)
__func__, cpu);
break;
}
@@ -49,6 +47,8 @@
}
put_online_cpus();
+diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
+index 517d4b68a1be..efe91887ecd7 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -504,6 +504,7 @@ struct r5conf {
@@ -59,3 +59,6 @@
struct page *spare_page; /* Used when checking P/Q in raid6 */
struct flex_array *scribble; /* space for constructing buffer
* lists and performing address
+--
+2.5.0
+
