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| author | Bob Peterson <rpeterso@redhat.com> | 2019-04-05 04:41:38 +0100 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2019-05-07 23:39:14 +0200 |
| commit | 73118ca8baf78dddd1f9c8ac67c1d80b47d9830e (patch) | |
| tree | 72c0d2a327c8bace37ce5984f39d971ab5768594 /fs/gfs2/main.c | |
| parent | 9287c6452d2b1f24ea8e84bd3cf6f3c6f267f712 (diff) | |
| download | linux-73118ca8baf78dddd1f9c8ac67c1d80b47d9830e.tar.gz | |
gfs2: Replace gl_revokes with a GLF flag
The gl_revokes value determines how many outstanding revokes a glock has
on the superblock revokes list; this is used to avoid unnecessary log
flushes. However, gl_revokes is only ever tested for being zero, and it's
only decremented in revoke_lo_after_commit, which removes all revokes
from the list, so we know that the gl_revoke values of all the glocks on
the list will reach zero. Therefore, we can replace gl_revokes with a
bit flag. This saves an atomic counter in struct gfs2_glock.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/main.c')
| -rw-r--r-- | fs/gfs2/main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index 136484ef35d37d..c700738de1f729 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -59,7 +59,6 @@ static void gfs2_init_glock_once(void *foo) INIT_LIST_HEAD(&gl->gl_lru); INIT_LIST_HEAD(&gl->gl_ail_list); atomic_set(&gl->gl_ail_count, 0); - atomic_set(&gl->gl_revokes, 0); } static void gfs2_init_gl_aspace_once(void *foo) |