gfs2: Rename gfs2_freeze_lock{ => _shared }

Rename gfs2_freeze_lock to gfs2_freeze_lock_shared to make it a bit more
obvious that this function establishes the "thawed" state of the freeze
glock.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

fs/gfs2/ops_fstype.c

@@ -1269,7 +1269,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
 		}
 	}
 
-	error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
+	error = gfs2_freeze_lock_shared(sdp, &freeze_gh, 0);
 	if (error)
 		goto fail_per_node;
 
@@ -1592,7 +1592,7 @@ static int gfs2_reconfigure(struct fs_context *fc)
 	if ((sb->s_flags ^ fc->sb_flags) & SB_RDONLY) {
 		struct gfs2_holder freeze_gh;
 
-		error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
+		error = gfs2_freeze_lock_shared(sdp, &freeze_gh, 0);
 		if (error)
 			return -EINVAL;
 

fs/gfs2/recovery.c

@@ -470,7 +470,7 @@ void gfs2_recover_func(struct work_struct *work)
 
 		/* Acquire a shared hold on the freeze glock */
 
-		error = gfs2_freeze_lock(sdp, &thaw_gh, LM_FLAG_PRIORITY);
+		error = gfs2_freeze_lock_shared(sdp, &thaw_gh, LM_FLAG_PRIORITY);
 		if (error)
 			goto fail_gunlock_ji;
 

fs/gfs2/super.c

@@ -677,7 +677,7 @@ void gfs2_freeze_func(struct work_struct *work)
 	struct super_block *sb = sdp->sd_vfs;
 
 	atomic_inc(&sb->s_active);
-	error = gfs2_freeze_lock(sdp, &freeze_gh, 0);
+	error = gfs2_freeze_lock_shared(sdp, &freeze_gh, 0);
 	if (error) {
 		gfs2_assert_withdraw(sdp, 0);
 	} else {

fs/gfs2/util.c

@@ -93,12 +93,12 @@ int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
 }
 
 /**
- * gfs2_freeze_lock - hold the freeze glock
+ * gfs2_freeze_lock_shared - hold the freeze glock
  * @sdp: the superblock
  * @freeze_gh: pointer to the requested holder
  * @caller_flags: any additional flags needed by the caller
  */
-int gfs2_freeze_lock(struct gfs2_sbd *sdp, struct gfs2_holder *freeze_gh,
+int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp, struct gfs2_holder *freeze_gh,
 			    int caller_flags)
 {
 	int flags = LM_FLAG_NOEXP | GL_EXACT | caller_flags;
@@ -157,7 +157,7 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
 		gfs2_holder_mark_uninitialized(&freeze_gh);
 		if (sdp->sd_freeze_gl &&
 		    !gfs2_glock_is_locked_by_me(sdp->sd_freeze_gl)) {
-			ret = gfs2_freeze_lock(sdp, &freeze_gh,
+			ret = gfs2_freeze_lock_shared(sdp, &freeze_gh,
 					log_write_allowed ? 0 : LM_FLAG_TRY);
 			if (ret == GLR_TRYFAILED)
 				ret = 0;

fs/gfs2/util.h

@@ -149,8 +149,9 @@ int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
 
 extern int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
 			       bool verbose);
-extern int gfs2_freeze_lock(struct gfs2_sbd *sdp,
-			    struct gfs2_holder *freeze_gh, int caller_flags);
+extern int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp,
+				   struct gfs2_holder *freeze_gh,
+				   int caller_flags);
 extern void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh);
 
 #define gfs2_io_error(sdp) \