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author | Konstantin Khorenko <khorenko@virtuozzo.com> | 2018-06-08 17:27:12 +0300 |
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committer | Jeff Layton <jlayton@redhat.com> | 2018-06-14 14:37:50 +0300 |
commit | 1cf8e5de4055f85383405a21a0a7c3c4348bf2ed (patch) | |
tree | 4dec4fc42e59f938a1aa6e01c29c7c85d2b623fa /include/trace | |
parent | 826d7bc9f013d01e92997883d2fd0c25f4af1f1c (diff) | |
download | linux-1cf8e5de4055f85383405a21a0a7c3c4348bf2ed.tar.xz |
fs/lock: show locks taken by processes from another pidns
Currently if we face a lock taken by a process invisible in the current
pidns we skip the lock completely, but this
1) makes the output not that nice
(root@vz7)/: cat /proc/${PID_A2}/fdinfo/3
pos: 4
flags: 02100002
mnt_id: 257
lock: (root@vz7)/:
2) makes it more difficult to debug issues with leaked flocks
if you get error on lock, but don't see any locks in /proc/$id/fdinfo/$file
Let's show information about such locks again as previously, but
show zero in the owner pid field.
After the patch:
===============
(root@vz7)/:cat /proc/${PID_A2}/fdinfo/3
pos: 4
flags: 02100002
mnt_id: 295
lock: 1: FLOCK ADVISORY WRITE 0 b6:f8a61:529946 0 EOF
Fixes: 9d5b86ac13c5 ("fs/locks: Remove fl_nspid and use fs-specific l_pid for remote locks")
Signed-off-by: Konstantin Khorenko <khorenko@virtuozzo.com>
Acked-by: Andrey Vagin <avagin@openvz.org>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Diffstat (limited to 'include/trace')
0 files changed, 0 insertions, 0 deletions