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| author | Nilay Shroff <[email protected]> | 2025-03-13 11:51:52 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2025-03-13 13:23:43 +0000 |
| commit | 0e94ed33681424a6dce65c62837e08e4c7aa09ac (patch) | |
| tree | cb95082667f464c5bd14eed5af97b99d0c83e7e1 /tools/testing/selftests/net/lib/py/utils.py | |
| parent | block: remove unnecessary goto labels in debugfs attribute read methods (diff) | |
| download | kernel-0e94ed33681424a6dce65c62837e08e4c7aa09ac.tar.gz kernel-0e94ed33681424a6dce65c62837e08e4c7aa09ac.zip | |
block: protect debugfs attribute method hctx_busy_show
The hctx_busy_show method in debugfs is currently unprotected. This
method iterates over all started requests in a tagset and prints them.
However, the tags can be updated concurrently via the sysfs attributes
'nr_requests' or 'scheduler' (elevator switch), leading to potential
race conditions.
Since sysfs attributes 'nr_requests' and 'scheduler' are already
protected using q->elevator_lock, extend this protection to the debugfs
'busy' attribute as well to ensure consistency.
Signed-off-by: Nilay Shroff <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/testing/selftests/net/lib/py/utils.py')
0 files changed, 0 insertions, 0 deletions