[PATCH 2/4] xfs: Remove mr_writer field from mrlock_t

[Pavel Reichl <preichl@redhat.com>]

mr_writer field is no longer used by any code.

Signed-off-by: Pavel Reichl <preichl@redhat.com>
---
 fs/xfs/mrlock.h | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/fs/xfs/mrlock.h b/fs/xfs/mrlock.h
index 79155eec341b..1923be92a832 100644
--- a/fs/xfs/mrlock.h
+++ b/fs/xfs/mrlock.h
@@ -10,14 +10,11 @@
 
 typedef struct {
 	struct rw_semaphore	mr_lock;
-#if defined(DEBUG) || defined(XFS_WARN)
-	int			mr_writer;
-#endif
 } mrlock_t;
 
 #if defined(DEBUG) || defined(XFS_WARN)
 #define mrinit(mrp, name)	\
-	do { (mrp)->mr_writer = 0; init_rwsem(&(mrp)->mr_lock); } while (0)
+	do { init_rwsem(&(mrp)->mr_lock); } while (0)
 #else
 #define mrinit(mrp, name)	\
 	do { init_rwsem(&(mrp)->mr_lock); } while (0)
@@ -34,9 +31,6 @@ static inline void mraccess_nested(mrlock_t *mrp, int subclass)
 static inline void mrupdate_nested(mrlock_t *mrp, int subclass)
 {
 	down_write_nested(&mrp->mr_lock, subclass);
-#if defined(DEBUG) || defined(XFS_WARN)
-	mrp->mr_writer = 1;
-#endif
 }
 
 static inline int mrtryaccess(mrlock_t *mrp)
@@ -48,17 +42,11 @@ static inline int mrtryupdate(mrlock_t *mrp)
 {
 	if (!down_write_trylock(&mrp->mr_lock))
 		return 0;
-#if defined(DEBUG) || defined(XFS_WARN)
-	mrp->mr_writer = 1;
-#endif
 	return 1;
 }
 
 static inline void mrunlock_excl(mrlock_t *mrp)
 {
-#if defined(DEBUG) || defined(XFS_WARN)
-	mrp->mr_writer = 0;
-#endif
 	up_write(&mrp->mr_lock);
 }
 
@@ -69,9 +57,6 @@ static inline void mrunlock_shared(mrlock_t *mrp)
 
 static inline void mrdemote(mrlock_t *mrp)
 {
-#if defined(DEBUG) || defined(XFS_WARN)
-	mrp->mr_writer = 0;
-#endif
 	downgrade_write(&mrp->mr_lock);
 }
 
-- 
2.24.1