1 files changed, 36 insertions, 10 deletions

diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 17a04b6321ed..1420c49674d7 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -87,8 +87,7 @@ typedef struct xfs_ifork {
  * Flags for xfs_ichgtime().
  */
 #define XFS_ICHGTIME_MOD        0x1     /* data fork modification timestamp */
-#define XFS_ICHGTIME_ACC        0x2     /* data fork access timestamp */
-#define XFS_ICHGTIME_CHG        0x4     /* inode field change timestamp */
+#define XFS_ICHGTIME_CHG        0x2     /* inode field change timestamp */
 
 /*
  * Per-fork incore inode flags.
@@ -204,7 +203,7 @@ typedef struct xfs_inode {
         struct xfs_inode        *i_mprev;       /* ptr to prev inode */
         struct xfs_mount        *i_mount;       /* fs mount struct ptr */
         struct list_head        i_reclaim;      /* reclaim list */
-        bhv_vnode_t             *i_vnode;       /* vnode backpointer */
+        struct inode            *i_vnode;       /* vnode backpointer */
         struct xfs_dquot        *i_udquot;      /* user dquot */
         struct xfs_dquot        *i_gdquot;      /* group dquot */
 
@@ -223,7 +222,7 @@ typedef struct xfs_inode {
         struct xfs_inode_log_item *i_itemp;     /* logging information */
         mrlock_t                i_lock;         /* inode lock */
         mrlock_t                i_iolock;       /* inode IO lock */
-        sema_t                  i_flock;        /* inode flush lock */
+        struct completion       i_flush;        /* inode flush completion q */
         atomic_t                i_pincount;     /* inode pin count */
         wait_queue_head_t       i_ipin_wait;    /* inode pinning wait queue */
         spinlock_t              i_flags_lock;   /* inode i_flags lock */
@@ -263,6 +262,18 @@ typedef struct xfs_inode {
 #define XFS_ISIZE(ip)   (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
                                 (ip)->i_size : (ip)->i_d.di_size;
 
+/* Convert from vfs inode to xfs inode */
+static inline struct xfs_inode *XFS_I(struct inode *inode)
+{
+        return (struct xfs_inode *)inode->i_private;
+}
+
+/* convert from xfs inode to vfs inode */
+static inline struct inode *VFS_I(struct xfs_inode *ip)
+{
+        return (struct inode *)ip->i_vnode;
+}
+
 /*
  * i_flags helper functions
  */
@@ -439,9 +450,6 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
 #define XFS_ITRUNC_DEFINITE     0x1
 #define XFS_ITRUNC_MAYBE        0x2
 
-#define XFS_ITOV(ip)            ((ip)->i_vnode)
-#define XFS_ITOV_NULL(ip)       ((ip)->i_vnode)
-
 /*
  * For multiple groups support: if S_ISGID bit is set in the parent
  * directory, group of new file is set to that of the parent, and
@@ -473,11 +481,8 @@ int		xfs_ilock_nowait(xfs_inode_t *, uint);
 void            xfs_iunlock(xfs_inode_t *, uint);
 void            xfs_ilock_demote(xfs_inode_t *, uint);
 int             xfs_isilocked(xfs_inode_t *, uint);
-void            xfs_iflock(xfs_inode_t *);
-int             xfs_iflock_nowait(xfs_inode_t *);
 uint            xfs_ilock_map_shared(xfs_inode_t *);
 void            xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void            xfs_ifunlock(xfs_inode_t *);
 void            xfs_ireclaim(xfs_inode_t *);
 int             xfs_finish_reclaim(xfs_inode_t *, int, int);
 int             xfs_finish_reclaim_all(struct xfs_mount *, int);
@@ -522,6 +527,7 @@ void		xfs_iflush_all(struct xfs_mount *);
 void            xfs_ichgtime(xfs_inode_t *, int);
 xfs_fsize_t     xfs_file_last_byte(xfs_inode_t *);
 void            xfs_lock_inodes(xfs_inode_t **, int, uint);
+void            xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
 
 void            xfs_synchronize_atime(xfs_inode_t *);
 void            xfs_mark_inode_dirty_sync(xfs_inode_t *);
@@ -570,6 +576,26 @@ extern struct kmem_zone	*xfs_ifork_zone;
 extern struct kmem_zone *xfs_inode_zone;
 extern struct kmem_zone *xfs_ili_zone;
 
+/*
+ * Manage the i_flush queue embedded in the inode.  This completion
+ * queue synchronizes processes attempting to flush the in-core
+ * inode back to disk.
+ */
+static inline void xfs_iflock(xfs_inode_t *ip)
+{
+        wait_for_completion(&ip->i_flush);
+}
+
+static inline int xfs_iflock_nowait(xfs_inode_t *ip)
+{
+        return try_wait_for_completion(&ip->i_flush);
+}
+
+static inline void xfs_ifunlock(xfs_inode_t *ip)
+{
+        complete(&ip->i_flush);
+}
+
 #endif  /* __KERNEL__ */
 
 #endif  /* __XFS_INODE_H__ */