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| author | Petr Vorel <[email protected]> | 2020-11-12 16:50:05 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-11-12 20:59:04 +0000 |
| commit | c01a21b77722db0474bbcc4eafc8c4e0d8fed6d8 (patch) | |
| tree | c0400539b57e94605378866bddd937385453690f /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | block: add a return value to set_capacity_revalidate_and_notify (diff) | |
| download | kernel-c01a21b77722db0474bbcc4eafc8c4e0d8fed6d8.tar.gz kernel-c01a21b77722db0474bbcc4eafc8c4e0d8fed6d8.zip | |
loop: Fix occasional uevent drop
Commit 716ad0986cbd ("loop: Switch to set_capacity_revalidate_and_notify")
causes an occasional drop of loop device uevent, which are no longer
triggered in loop_set_size() but in a different part of code.
Bug is reproducible with LTP test uevent01 [1]:
i=0; while true; do
i=$((i+1)); echo "== $i =="
lsmod |grep -q loop && rmmod -f loop
./uevent01 || break
done
Put back triggering through code called in loop_set_size().
Fix required to add yet another parameter to
set_capacity_revalidate_and_notify().
[1] https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/uevents/uevent01.c
[hch: rebased on a different change to the prototype of
set_capacity_revalidate_and_notify]
Cc: [email protected] # v5.9
Fixes: 716ad0986cbd ("loop: Switch to set_capacity_revalidate_and_notify")
Reported-by: <[email protected]>
Signed-off-by: Petr Vorel <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions