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| author |   Abhi Das <adas@redhat.com> | 2023-11-10 13:10:08 +0100 |
|---|---|---|
| committer |   Andreas Gruenbacher <agruenba@redhat.com> | 2023-12-18 14:24:33 +0100 |
| commit | dd00aaeb343255a8a30de671bd27bde79a47c8e5 (patch) | |
| tree | 521dfaa2891b730c7d8260905c2bde3579102fd5 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | gfs2: Add GL_NOBLOCK flag (diff) | |
| download | wireguard-linux-dd00aaeb343255a8a30de671bd27bde79a47c8e5.tar.xz wireguard-linux-dd00aaeb343255a8a30de671bd27bde79a47c8e5.zip | |
gfs2: Use GL_NOBLOCK flag for non-blocking lookups
Add the GL_NOBLOCK flag to the locking requests in gfs2_permission() and
gfs2_drevalidate() when called with the MAY_NOT_BLOCK flag and
LOOKUP_RCU flag, respectively. This will cause the locking requests to
be handled without sleeping if possible. We bail out with -ECHILD if we
can't grant the glock immediately.
Make sure not to dget() + dput() the parent dentry in gfs2_drevalidate()
in LOOKUP_RCU mode; dput() is a sleeping operation.
Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions