X-Git-Url: https://repo.jachan.dev/linux.git/blobdiff_plain/08bc2dbc7327e89b9d5b9c8ef9401d1df2622fca..5029996547a9f3988459e11955c13259495308ef:/fs/gfs2/lm.c

diff --git a/fs/gfs2/lm.c b/fs/gfs2/lm.c
index 06a785e9b582..fb918c7de655 100644
--- a/fs/gfs2/lm.c
+++ b/fs/gfs2/lm.c
@@ -1,10 +1,10 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
+ * of the GNU General Public License version 2.
  */
 
 #include <linux/sched.h>
@@ -14,7 +14,6 @@
 #include <linux/buffer_head.h>
 #include <linux/delay.h>
 #include <linux/gfs2_ondisk.h>
-#include <asm/semaphore.h>
 
 #include "gfs2.h"
 #include "lm_interface.h"
@@ -23,7 +22,6 @@
 #include "lm.h"
 #include "super.h"
 #include "util.h"
-#include "lvb.h"
 
 /**
  * gfs2_lm_mount - mount a locking protocol
@@ -126,10 +124,8 @@ int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...)
 int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		     lm_lock_t **lockp)
 {
-	int error;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = -EIO;
-	else
+	int error = -EIO;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
 				sdp->sd_lockstruct.ls_lockspace, name, lockp);
 	return error;
@@ -145,12 +141,9 @@ unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, lm_lock_t *lock,
 			  unsigned int cur_state, unsigned int req_state,
 			  unsigned int flags)
 {
-	int ret;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		ret = 0;
-	else
-		ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock,
-							 cur_state,
+	int ret = 0;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+		ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
 							 req_state, flags);
 	return ret;
 }
@@ -158,10 +151,8 @@ unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, lm_lock_t *lock,
 unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, lm_lock_t *lock,
 			    unsigned int cur_state)
 {
-	int ret;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		ret = 0;
-	else
+	int ret = 0;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		ret =  sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
 	return ret;
 }
@@ -174,10 +165,8 @@ void gfs2_lm_cancel(struct gfs2_sbd *sdp, lm_lock_t *lock)
 
 int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, lm_lock_t *lock, char **lvbp)
 {
-	int error;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = -EIO;
-	else
+	int error = -EIO;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
 	return error;
 }
@@ -188,50 +177,33 @@ void gfs2_lm_unhold_lvb(struct gfs2_sbd *sdp, lm_lock_t *lock, char *lvb)
 		sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(lock, lvb);
 }
 
-#if 0
-void gfs2_lm_sync_lvb(struct gfs2_sbd *sdp, lm_lock_t *lock, char *lvb)
-{
-	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		sdp->sd_lockstruct.ls_ops->lm_sync_lvb(lock, lvb);
-}
-#endif  /*  0  */
-
 int gfs2_lm_plock_get(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		      struct file *file, struct file_lock *fl)
 {
-	int error;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = -EIO;
-	else
+	int error = -EIO;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		error = sdp->sd_lockstruct.ls_ops->lm_plock_get(
-			sdp->sd_lockstruct.ls_lockspace,
-			name, file, fl);
+				sdp->sd_lockstruct.ls_lockspace, name, file, fl);
 	return error;
 }
 
 int gfs2_lm_plock(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		  struct file *file, int cmd, struct file_lock *fl)
 {
-	int error;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = -EIO;
-	else
+	int error = -EIO;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		error = sdp->sd_lockstruct.ls_ops->lm_plock(
-			sdp->sd_lockstruct.ls_lockspace,
-			name, file, cmd, fl);
+				sdp->sd_lockstruct.ls_lockspace, name, file, cmd, fl);
 	return error;
 }
 
 int gfs2_lm_punlock(struct gfs2_sbd *sdp, struct lm_lockname *name,
 		    struct file *file, struct file_lock *fl)
 {
-	int error;
-	if (unlikely(test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
-		error = -EIO;
-	else
+	int error = -EIO;
+	if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
 		error = sdp->sd_lockstruct.ls_ops->lm_punlock(
-			sdp->sd_lockstruct.ls_lockspace,
-			name, file, fl);
+				sdp->sd_lockstruct.ls_lockspace, name, file, fl);
 	return error;
 }