[XFS] implement IHOLD/IRELE directly

[linux-2.6-omap-h63xx.git] / fs / xfs / linux-2.6 / xfs_vnode.h

diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 41ca2cec5d310da74c6b285c8cec9783e3b9e797..0d7eac03bdf00113eb9a3b75414c8cef0bb00009 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -24,18 +24,6 @@ struct attrlist_cursor_kern;
 
 typedef struct inode   bhv_vnode_t;
 
-/*
- * Vnode to Linux inode mapping.
- */
-static inline bhv_vnode_t *vn_from_inode(struct inode *inode)
-{
-       return inode;
-}
-static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
-{
-       return vnode;
-}
-
 /*
  * Return values for xfs_inactive.  A return value of
  * VN_INACTIVE_NOCACHE implies that the file system behavior
@@ -78,30 +66,25 @@ extern void vn_ioerror(struct xfs_inode *ip, int error, char *f, int l);
 
 static inline int vn_count(bhv_vnode_t *vp)
 {
-       return atomic_read(&vn_to_inode(vp)->i_count);
+       return atomic_read(&vp->i_count);
 }
 
-/*
- * Vnode reference counting functions (and macros for compatibility).
- */
-extern bhv_vnode_t     *vn_hold(bhv_vnode_t *);
+#define IHOLD(ip) \
+do { \
+       ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
+       atomic_inc(&(VFS_I(ip)->i_count)); \
+       xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+} while (0)
 
-#if defined(XFS_INODE_TRACE)
-#define VN_HOLD(vp)            \
-       ((void)vn_hold(vp),     \
-         xfs_itrace_hold(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address))
-#define VN_RELE(vp)            \
-         (xfs_itrace_rele(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address), \
-          iput(vn_to_inode(vp)))
-#else
-#define VN_HOLD(vp)            ((void)vn_hold(vp))
-#define VN_RELE(vp)            (iput(vn_to_inode(vp)))
-#endif
+#define IRELE(ip) \
+do { \
+       xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+       iput(VFS_I(ip)); \
+} while (0)
 
 static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
 {
-       struct inode *inode = igrab(vn_to_inode(vp));
-       return inode ? vn_from_inode(inode) : NULL;
+       return igrab(vp);
 }
 
 /*
@@ -109,7 +92,7 @@ static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
  */
 static inline int VN_BAD(bhv_vnode_t *vp)
 {
-       return is_bad_inode(vn_to_inode(vp));
+       return is_bad_inode(vp);
 }
 
 /*
@@ -134,9 +117,9 @@ static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
 /*
  * Some useful predicates.
  */
-#define VN_MAPPED(vp)  mapping_mapped(vn_to_inode(vp)->i_mapping)
-#define VN_CACHED(vp)  (vn_to_inode(vp)->i_mapping->nrpages)
-#define VN_DIRTY(vp)   mapping_tagged(vn_to_inode(vp)->i_mapping, \
+#define VN_MAPPED(vp)  mapping_mapped(vp->i_mapping)
+#define VN_CACHED(vp)  (vp->i_mapping->nrpages)
+#define VN_DIRTY(vp)   mapping_tagged(vp->i_mapping, \
                                        PAGECACHE_TAG_DIRTY)