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authorBob Peterson <rpeterso@redhat.com>2019-04-05 06:41:38 +0300
committerAndreas Gruenbacher <agruenba@redhat.com>2019-05-08 00:39:14 +0300
commit73118ca8baf78dddd1f9c8ac67c1d80b47d9830e (patch)
tree72c0d2a327c8bace37ce5984f39d971ab5768594 /fs/gfs2/main.c
parent9287c6452d2b1f24ea8e84bd3cf6f3c6f267f712 (diff)
downloadlinux-73118ca8baf78dddd1f9c8ac67c1d80b47d9830e.tar.xz
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.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 136484ef35d3..c700738de1f7 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)