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| author | Bob Peterson <rpeterso@redhat.com> | 2018-04-18 23:58:19 +0300 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2021-02-17 21:30:28 +0300 |
| commit | 06e908cd9ead1f215cc30132aac5ce132a352fbe (patch) | |
| tree | d29700f1ed155b18a0b3bd0af553f48fbc1a35af /fs/gfs2/rgrp.c | |
| parent | 9e514605c77451745ea9fca5a26fc3153893686a (diff) | |
| download | linux-06e908cd9ead1f215cc30132aac5ce132a352fbe.tar.xz | |
gfs2: Allow node-wide exclusive glock sharing
Introduce a new LM_FLAG_NODE_SCOPE glock holder flag: when taking a
glock in LM_ST_EXCLUSIVE (EX) mode and with the LM_FLAG_NODE_SCOPE flag
set, the exclusive lock is shared among all local processes who are
holding the glock in EX mode and have the LM_FLAG_NODE_SCOPE flag set.
From the point of view of other nodes, the lock is still held
exclusively.
A future patch will start using this flag to improve performance with
rgrp sharing.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
0 files changed, 0 insertions, 0 deletions