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| author | Yu Kuai <yukuai3@huawei.com> | 2022-10-09 18:10:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-24 09:58:30 +0200 |
| commit | 7a5dc0f4bc45ea8633d1248e1fffa4ce92c155b1 (patch) | |
| tree | 024b82ba7d722d57447a5463c851fab185489f59 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c (diff) | |
| download | kernel-7a5dc0f4bc45ea8633d1248e1fffa4ce92c155b1.tar.gz | |
blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
commit 285febabac4a16655372d23ff43e89ff6f216691 upstream.
commit 8c5035dfbb94 ("blk-wbt: call rq_qos_add() after wb_normal is
initialized") moves wbt_set_write_cache() before rq_qos_add(), which
is wrong because wbt_rq_qos() is still NULL.
Fix the problem by removing wbt_set_write_cache() and setting 'rwb->wc'
directly. Noted that this patch also remove the redundant setting of
'rab->wc'.
Fixes: 8c5035dfbb94 ("blk-wbt: call rq_qos_add() after wb_normal is initialized")
Reported-by: kernel test robot <yujie.liu@intel.com>
Link: https://lore.kernel.org/r/202210081045.77ddf59b-yujie.liu@intel.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20221009101038.1692875-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions