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Diffstat (limited to 'fs/xfs/xfs_inode.h')
-rw-r--r--fs/xfs/xfs_inode.h18
1 files changed, 8 insertions, 10 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index f14c1de2549d..10dcf27b4c85 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -56,7 +56,6 @@ typedef struct xfs_inode {
/* Transaction and locking information. */
struct xfs_inode_log_item *i_itemp; /* logging information */
mrlock_t i_lock; /* inode lock */
- mrlock_t i_iolock; /* inode IO lock */
mrlock_t i_mmaplock; /* inode mmap IO lock */
atomic_t i_pincount; /* inode pin count */
spinlock_t i_flags_lock; /* inode i_flags lock */
@@ -246,6 +245,11 @@ static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
* Synchronize processes attempting to flush the in-core inode back to disk.
*/
+static inline int xfs_isiflocked(struct xfs_inode *ip)
+{
+ return xfs_iflags_test(ip, XFS_IFLOCK);
+}
+
extern void __xfs_iflock(struct xfs_inode *ip);
static inline int xfs_iflock_nowait(struct xfs_inode *ip)
@@ -261,16 +265,12 @@ static inline void xfs_iflock(struct xfs_inode *ip)
static inline void xfs_ifunlock(struct xfs_inode *ip)
{
+ ASSERT(xfs_isiflocked(ip));
xfs_iflags_clear(ip, XFS_IFLOCK);
smp_mb();
wake_up_bit(&ip->i_flags, __XFS_IFLOCK_BIT);
}
-static inline int xfs_isiflocked(struct xfs_inode *ip)
-{
- return xfs_iflags_test(ip, XFS_IFLOCK);
-}
-
/*
* Flags for inode locking.
* Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
@@ -332,7 +332,7 @@ static inline int xfs_isiflocked(struct xfs_inode *ip)
* IOLOCK values
*
* 0-3 subclass value
- * 4-7 PARENT subclass values
+ * 4-7 unused
*
* MMAPLOCK values
*
@@ -347,10 +347,8 @@ static inline int xfs_isiflocked(struct xfs_inode *ip)
*
*/
#define XFS_IOLOCK_SHIFT 16
-#define XFS_IOLOCK_PARENT_VAL 4
-#define XFS_IOLOCK_MAX_SUBCLASS (XFS_IOLOCK_PARENT_VAL - 1)
+#define XFS_IOLOCK_MAX_SUBCLASS 3
#define XFS_IOLOCK_DEP_MASK 0x000f0000
-#define XFS_IOLOCK_PARENT (XFS_IOLOCK_PARENT_VAL << XFS_IOLOCK_SHIFT)
#define XFS_MMAPLOCK_SHIFT 20
#define XFS_MMAPLOCK_NUMORDER 0