gfs2: Remove support for glock holder auto-demotion

Remove the support for glock holder auto-demotion (commit dc732906c245
and folow-ups) as we are not planning to use this feature, and the
additional code therefore only adds unnecessary complexity.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index e4be9e4bc979..f37ac087e2c1 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -156,8 +156,6 @@ static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *
 	list_for_each_entry(gh, &gl->gl_holders, gh_list) {
 		if (!test_bit(HIF_HOLDER, &gh->gh_iflags))
 			break;
-		if (test_bit(HIF_MAY_DEMOTE, &gh->gh_iflags))
-			continue;
 		if (gh->gh_owner_pid == pid)
 			goto out;
 	}
@@ -308,24 +306,6 @@ static inline bool gfs2_holder_queued(struct gfs2_holder *gh)
 	return !list_empty(&gh->gh_list);
 }
 
-static inline void gfs2_holder_allow_demote(struct gfs2_holder *gh)
-{
-	struct gfs2_glock *gl = gh->gh_gl;
-
-	spin_lock(&gl->gl_lockref.lock);
-	set_bit(HIF_MAY_DEMOTE, &gh->gh_iflags);
-	spin_unlock(&gl->gl_lockref.lock);
-}
-
-static inline void gfs2_holder_disallow_demote(struct gfs2_holder *gh)
-{
-	struct gfs2_glock *gl = gh->gh_gl;
-
-	spin_lock(&gl->gl_lockref.lock);
-	clear_bit(HIF_MAY_DEMOTE, &gh->gh_iflags);
-	spin_unlock(&gl->gl_lockref.lock);
-}
-
 extern void gfs2_inode_remember_delete(struct gfs2_glock *gl, u64 generation);
 extern bool gfs2_inode_already_deleted(struct gfs2_glock *gl, u64 generation);