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authorBart Van Assche <bart.vanassche@wdc.com>2018-08-10 13:28:07 -0700
committerJens Axboe <axboe@kernel.dk>2018-08-11 15:41:25 -0600
commitb86d865cb1cae1e61527ea0b8977078bbf694328 (patch)
treee78dcb385ae1f412bea1930a77171a5a39ab1f50 /block
parent46451874c7c9afaa4e014aea0f0970f886444e0d (diff)
downloadlinux-b86d865cb1cae1e61527ea0b8977078bbf694328.tar.bz2
blkcg: Make blkg_root_lookup() work for queues in bypass mode
For legacy queues the only call of blkg_root_lookup() happens after bypass mode has been enabled. Since blkg_lookup() returns NULL for queues in bypass mode, modify the blkg_root_lookup() such that it no longer depends on bypass mode. Rename the function into blk_queue_root_blkg() as suggested by Tejun. Suggested-by: Tejun Heo <tj@kernel.org> Fixes: 6bad9b210a22 ("blkcg: Introduce blkg_root_lookup()") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-sysfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 380bc284ced1..bb109bb0a055 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -813,7 +813,7 @@ static void __blk_release_queue(struct work_struct *work)
blk_exit_queue(q);
}
- WARN(blkg_root_lookup(q),
+ WARN(blk_queue_root_blkg(q),
"request queue %p is being released but it has not yet been removed from the blkcg controller\n",
q);