diff options
Diffstat (limited to 'debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch')
| -rw-r--r-- | debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch b/debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch index 148b94e4b..90a497e14 100644 --- a/debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch +++ b/debian/patches-rt/0181-md-raid5-Make-raid5_percpu-handling-RT-aware.patch @@ -1,7 +1,7 @@ From: Thomas Gleixner <tglx@linutronix.de> Date: Tue, 6 Apr 2010 16:51:31 +0200 -Subject: [PATCH 181/342] md: raid5: Make raid5_percpu handling RT aware -Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=ee5b72719d2eaaef95179f02ba27140ecc010e87 +Subject: [PATCH 181/351] md: raid5: Make raid5_percpu handling RT aware +Origin: https://git.kernel.org/cgit/linux/kernel/git/rt/linux-stable-rt.git/commit?id=215c75ad291ac658b1b6756853fcf92b7e781daa __raid_run_ops() disables preemption with get_cpu() around the access to the raid5_percpu variables. That causes scheduling while atomic @@ -19,10 +19,10 @@ Tested-by: Udo van den Heuvel <udovdh@xs4all.nl> 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c -index dad426cc0f90..73083d826cb5 100644 +index 7fe0619c487a..fdbe17d1b1c4 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c -@@ -2069,8 +2069,9 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) +@@ -2070,8 +2070,9 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) struct raid5_percpu *percpu; unsigned long cpu; @@ -33,7 +33,7 @@ index dad426cc0f90..73083d826cb5 100644 if (test_bit(STRIPE_OP_BIOFILL, &ops_request)) { ops_run_biofill(sh); overlap_clear++; -@@ -2129,7 +2130,8 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) +@@ -2130,7 +2131,8 @@ 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); } @@ -43,7 +43,7 @@ index dad426cc0f90..73083d826cb5 100644 } static void free_stripe(struct kmem_cache *sc, struct stripe_head *sh) -@@ -6816,6 +6818,7 @@ static int raid456_cpu_up_prepare(unsigned int cpu, struct hlist_node *node) +@@ -6828,6 +6830,7 @@ static int raid456_cpu_up_prepare(unsigned int cpu, struct hlist_node *node) __func__, cpu); return -ENOMEM; } @@ -51,7 +51,7 @@ index dad426cc0f90..73083d826cb5 100644 return 0; } -@@ -6826,7 +6829,6 @@ static int raid5_alloc_percpu(struct r5conf *conf) +@@ -6838,7 +6841,6 @@ static int raid5_alloc_percpu(struct r5conf *conf) conf->percpu = alloc_percpu(struct raid5_percpu); if (!conf->percpu) return -ENOMEM; |