[GFS2] Remove GL_NEVER_RECURSE flag

There is no point in keeping this flag since recursion is not
now allowed for any glock.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/glock.c

@@ -357,7 +357,6 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, uint64_t number,
 void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
 		      struct gfs2_holder *gh)
 {
-	flags |= GL_NEVER_RECURSE;
 	INIT_LIST_HEAD(&gh->gh_list);
 	gh->gh_gl = gl;
 	gh->gh_ip = (unsigned long)__builtin_return_address(0);
@@ -387,7 +386,7 @@ void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
 void gfs2_holder_reinit(unsigned int state, unsigned flags, struct gfs2_holder *gh)
 {
 	gh->gh_state = state;
-	gh->gh_flags = flags | GL_NEVER_RECURSE;
+	gh->gh_flags = flags;
 	if (gh->gh_state == LM_ST_EXCLUSIVE)
 		gh->gh_flags |= GL_LOCAL_EXCL;
 
@@ -731,8 +730,7 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state)
 	} else {
 		spin_unlock(&gl->gl_spin);
 
-		new_gh = gfs2_holder_get(gl, state,
-					 LM_FLAG_TRY | GL_NEVER_RECURSE,
+		new_gh = gfs2_holder_get(gl, state, LM_FLAG_TRY,
 					 GFP_KERNEL | __GFP_NOFAIL),
 		set_bit(HIF_DEMOTE, &new_gh->gh_iflags);
 		set_bit(HIF_DEALLOC, &new_gh->gh_iflags);
@@ -1336,7 +1334,7 @@ void gfs2_glock_force_drop(struct gfs2_glock *gl)
 {
 	struct gfs2_holder gh;
 
-	gfs2_holder_init(gl, LM_ST_UNLOCKED, GL_NEVER_RECURSE, &gh);
+	gfs2_holder_init(gl, LM_ST_UNLOCKED, 0, &gh);
 	set_bit(HIF_DEMOTE, &gh.gh_iflags);
 
 	spin_lock(&gl->gl_spin);
@@ -1401,7 +1399,7 @@ int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time)
 	}
 	gh = &gr->gr_gh;
 
-	gfs2_holder_init(gl, 0, GL_NEVER_RECURSE, gh);
+	gfs2_holder_init(gl, 0, 0, gh);
 	set_bit(HIF_GREEDY, &gh->gh_iflags);
 	INIT_WORK(&gr->gr_work, greedy_work, gr);
 

fs/gfs2/glock.h

@@ -26,7 +26,6 @@
 #define GL_NOCACHE		0x00000400
 #define GL_SYNC			0x00000800
 #define GL_NOCANCEL		0x00001000
-#define GL_NEVER_RECURSE	0x00002000
 #define GL_AOP			0x00004000
 
 #define GLR_TRYFAILED		13

fs/gfs2/ops_fstype.c

@@ -223,7 +223,7 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
 	error = gfs2_glock_nq_num(sdp,
 				  GFS2_LIVE_LOCK, &gfs2_nondisk_glops,
 				  LM_ST_SHARED,
-				  LM_FLAG_NOEXP | GL_EXACT | GL_NEVER_RECURSE,
+				  LM_FLAG_NOEXP | GL_EXACT,
 				  &sdp->sd_live_gh);
 	if (error) {
 		fs_err(sdp, "can't acquire live glock: %d\n", error);
@@ -638,7 +638,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 
 	ip = sdp->sd_ir_inode->u.generic_ip;
 	error = gfs2_glock_nq_init(ip->i_gl,
-				   LM_ST_EXCLUSIVE, GL_NEVER_RECURSE,
+				   LM_ST_EXCLUSIVE, 0,
 				   &sdp->sd_ir_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"ir\" file: %d\n", error);
@@ -647,7 +647,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 
 	ip = sdp->sd_sc_inode->u.generic_ip;
 	error = gfs2_glock_nq_init(ip->i_gl,
-				   LM_ST_EXCLUSIVE, GL_NEVER_RECURSE,
+				   LM_ST_EXCLUSIVE, 0,
 				   &sdp->sd_sc_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
@@ -656,7 +656,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 
 	ip = sdp->sd_ut_inode->u.generic_ip;
 	error = gfs2_glock_nq_init(ip->i_gl,
-				   LM_ST_EXCLUSIVE, GL_NEVER_RECURSE,
+				   LM_ST_EXCLUSIVE, 0,
 				   &sdp->sd_ut_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"ut\" file: %d\n", error);
@@ -665,7 +665,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 
 	ip = sdp->sd_qc_inode->u.generic_ip;
 	error = gfs2_glock_nq_init(ip->i_gl,
-				   LM_ST_EXCLUSIVE, GL_NEVER_RECURSE,
+				   LM_ST_EXCLUSIVE, 0,
 				   &sdp->sd_qc_gh);
 	if (error) {
 		fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);

fs/gfs2/recovery.c

@@ -487,8 +487,7 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
 		error = gfs2_glock_nq_init(sdp->sd_trans_gl,
 					   LM_ST_SHARED,
 					   LM_FLAG_NOEXP | LM_FLAG_PRIORITY |
-					   GL_NEVER_RECURSE | GL_NOCANCEL |
-					   GL_NOCACHE,
+					   GL_NOCANCEL | GL_NOCACHE,
 					   &t_gh);
 		if (error)
 			goto fail_gunlock_ji;

fs/gfs2/super.c

@@ -469,7 +469,7 @@ int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
 	int error;
 
 	error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
-				   GL_LOCAL_EXCL | GL_NEVER_RECURSE, &t_gh);
+				   GL_LOCAL_EXCL, &t_gh);
 	if (error)
 		return error;
 
@@ -530,7 +530,7 @@ int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
 	gfs2_statfs_sync(sdp);
 
 	error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
-				GL_LOCAL_EXCL | GL_NEVER_RECURSE | GL_NOCACHE,
+				GL_LOCAL_EXCL | GL_NOCACHE,
 				&t_gh);
 	if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
 		return error;
@@ -869,7 +869,7 @@ int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp, struct gfs2_holder *t_gh)
 	}
 
 	error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_DEFERRED,
-			       LM_FLAG_PRIORITY | GL_NEVER_RECURSE | GL_NOCACHE,
+			       LM_FLAG_PRIORITY | GL_NOCACHE,
 			       t_gh);
 
 	list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {

fs/gfs2/trans.c

@@ -50,8 +50,7 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
 						   sizeof(uint64_t));
 	INIT_LIST_HEAD(&tr->tr_list_buf);
 
-	gfs2_holder_init(sdp->sd_trans_gl, LM_ST_SHARED,
-			 GL_NEVER_RECURSE, &tr->tr_t_gh);
+	gfs2_holder_init(sdp->sd_trans_gl, LM_ST_SHARED, 0, &tr->tr_t_gh);
 
 	error = gfs2_glock_nq(&tr->tr_t_gh);
 	if (error)