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| author | Yu Kuai <yukuai3@huawei.com> | 2022-11-15 22:10:49 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-11-16 15:19:56 -0700 |
| commit | d563792c8933a810d28ce0f2831f0726c2b15a31 (patch) | |
| tree | 76b50a7888501ffbebeb5d989166048258468bb3 /tools/perf/scripts/python/stackcollapse.py | |
| parent | dm: cleanup close_table_device (diff) | |
| download | linux-d563792c8933a810d28ce0f2831f0726c2b15a31.tar.gz linux-d563792c8933a810d28ce0f2831f0726c2b15a31.zip | |
dm: make sure create and remove dm device won't race with open and close table
open_table_device() and close_table_device() is protected by
table_devices_lock, hence use it to protect add_disk() and
del_gendisk().
Prepare to track per-add_disk holder relations in dm.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221115141054.1051801-6-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions