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| author | Matteo Croce <[email protected]> | 2021-07-13 01:05:30 +0200 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-08-02 13:37:29 -0600 |
| commit | 9f65c489b68d42427dc0651488dd260d678f525d (patch) | |
| tree | a6b1cd7f02596190763931d26943b8a5c434de54 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | e6138dc12de9df17cbda9c40314d69592855ac5e (diff) | |
loop: raise media_change event
Make the loop device raise a DISK_MEDIA_CHANGE event on attach or detach.
# udevadm monitor -up |grep -e DISK_MEDIA_CHANGE -e DEVNAME &
# losetup -f zero
[ 7.454235] loop0: detected capacity change from 0 to 16384
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop0
DEVNAME=/dev/loop0
DEVNAME=/dev/loop0
# losetup -f zero
[ 10.205245] loop1: detected capacity change from 0 to 16384
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop1
DEVNAME=/dev/loop1
DEVNAME=/dev/loop1
# losetup -f zero2
[ 13.532368] loop2: detected capacity change from 0 to 40960
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop2
DEVNAME=/dev/loop2
# losetup -D
DEVNAME=/dev/loop1
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop1
DEVNAME=/dev/loop2
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop2
DEVNAME=/dev/loop0
DISK_MEDIA_CHANGE=1
DEVNAME=/dev/loop0
Signed-off-by: Matteo Croce <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Tested-by: Luca Boccassi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions