Patch "block: cfq_cpd_alloc() should use @gfp" has been added to the 4.9-stable tree

Patch "block: cfq_cpd_alloc() should use @gfp" has been added to the 4.9-stable tree

[gregkh]

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@vger.kernel.org> know about it.


>From ebc4ff661fbe76781c6b16dfb7b754a5d5073f8e Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 10 Nov 2016 11:16:37 -0500
Subject: block: cfq_cpd_alloc() should use @gfp

From: Tejun Heo <tj@kernel.org>

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@kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: e4a9bde9589f ("blkcg: replace blkcg_policy->cpd_size with ->cpd_alloc/free_fn() methods")
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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@kernel.org are

queue-4.9/block-cfq_cpd_alloc-should-use-gfp.patch