This is a note to let you know that I've just added the patch titled
block: cfq_cpd_alloc() should use @gfp
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
block-cfq_cpd_alloc-should-use-gfp.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ebc4ff661fbe76781c6b16dfb7b754a5d5073f8e Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Thu, 10 Nov 2016 11:16:37 -0500
Subject: block: cfq_cpd_alloc() should use @gfp
From: Tejun Heo <tj@xxxxxxxxxx>
commit ebc4ff661fbe76781c6b16dfb7b754a5d5073f8e upstream.
cfq_cpd_alloc() which is the cpd_alloc_fn implementation for cfq was
incorrectly hard coding GFP_KERNEL instead of using the mask specified
through the @gfp parameter. This currently doesn't cause any actual
issues because all current callers specify GFP_KERNEL. Fix it.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: e4a9bde9589f ("blkcg: replace blkcg_policy->cpd_size with ->cpd_alloc/free_fn() methods")
Signed-off-by: Jens Axboe <axboe@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
block/cfq-iosched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1596,7 +1596,7 @@ static struct blkcg_policy_data *cfq_cpd
{
struct cfq_group_data *cgd;
- cgd = kzalloc(sizeof(*cgd), GFP_KERNEL);
+ cgd = kzalloc(sizeof(*cgd), gfp);
if (!cgd)
return NULL;
return &cgd->cpd;
Patches currently in stable-queue which might be from tj@xxxxxxxxxx are
queue-4.9/block-cfq_cpd_alloc-should-use-gfp.patch
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