loop: Fix occasional uevent drop
Commit 716ad098 ("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: stable@vger.kernel.org # v5.9 Fixes: 716ad098 ("loop: Switch to set_capacity_revalidate_and_notify") Reported-by: <ltp@lists.linux.it> Signed-off-by: NPetr Vorel <pvorel@suse.cz> Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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