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| author | Tejun Heo <[email protected]> | 2020-09-01 18:52:31 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-09-01 22:48:44 +0000 |
| commit | 5aeac7c4b16069aae49005f0a8d4526baa83341b (patch) | |
| tree | d380ddce8bf1e1a8d2e043e1491ba3da588ef89f /net/switchdev/switchdev.c | |
| parent | block: fix locking in bdev_del_partition (diff) | |
| download | kernel-5aeac7c4b16069aae49005f0a8d4526baa83341b.tar.gz kernel-5aeac7c4b16069aae49005f0a8d4526baa83341b.zip | |
blk-iocost: ioc_pd_free() shouldn't assume irq disabled
ioc_pd_free() grabs irq-safe ioc->lock without ensuring that irq is disabled
when it can be called with irq disabled or enabled. This has a small chance
of causing A-A deadlocks and triggers lockdep splats. Use irqsave operations
instead.
Signed-off-by: Tejun Heo <[email protected]>
Fixes: 7caa47151ab2 ("blkcg: implement blk-iocost")
Cc: [email protected] # v5.4+
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions