Merge git://oss.sgi.com:8090/xfs/xfs-2.6

[linux-drm-fsl-dcu.git] / fs / xfs / linux-2.6 / xfs_vnode.c

diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index 260dd8415dd7dc78716895340fa4e0b76b1ae058..ada24baf88de47dd6b8c150191ab6f2408589810 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -26,7 +26,7 @@ DEFINE_SPINLOCK(vnumber_lock);
  */
 #define NVSYNC                  37
 #define vptosync(v)             (&vsync[((unsigned long)v) % NVSYNC])
-STATIC wait_queue_head_t vsync[NVSYNC];
+static wait_queue_head_t vsync[NVSYNC];
 
 void
 vn_init(void)
@@ -39,7 +39,7 @@ vn_init(void)
 
 void
 vn_iowait(
-       struct vnode    *vp)
+       bhv_vnode_t     *vp)
 {
        wait_queue_head_t *wq = vptosync(vp);
 
@@ -48,17 +48,33 @@ vn_iowait(
 
 void
 vn_iowake(
-       struct vnode    *vp)
+       bhv_vnode_t     *vp)
 {
        if (atomic_dec_and_test(&vp->v_iocount))
                wake_up(vptosync(vp));
 }
 
-struct vnode *
+/*
+ * Volume managers supporting multiple paths can send back ENODEV when the
+ * final path disappears.  In this case continuing to fill the page cache
+ * with dirty data which cannot be written out is evil, so prevent that.
+ */
+void
+vn_ioerror(
+       bhv_vnode_t     *vp,
+       int             error,
+       char            *f,
+       int             l)
+{
+       if (unlikely(error == -ENODEV))
+               bhv_vfs_force_shutdown(vp->v_vfsp, SHUTDOWN_DEVICE_REQ, f, l);
+}
+
+bhv_vnode_t *
 vn_initialize(
        struct inode    *inode)
 {
-       struct vnode    *vp = LINVFS_GET_VP(inode);
+       bhv_vnode_t     *vp = vn_from_inode(inode);
 
        XFS_STATS_INC(vn_active);
        XFS_STATS_INC(vn_alloc);
@@ -83,7 +99,7 @@ vn_initialize(
        vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
 #endif /* XFS_VNODE_TRACE */
 
-       vn_trace_exit(vp, "vn_initialize", (inst_t *)__return_address);
+       vn_trace_exit(vp, __FUNCTION__, (inst_t *)__return_address);
        return vp;
 }
 
@@ -94,10 +110,10 @@ vn_initialize(
  */
 void
 vn_revalidate_core(
-       struct vnode    *vp,
-       vattr_t         *vap)
+       bhv_vnode_t     *vp,
+       bhv_vattr_t     *vap)
 {
-       struct inode    *inode = LINVFS_GET_IP(vp);
+       struct inode    *inode = vn_to_inode(vp);
 
        inode->i_mode       = vap->va_mode;
        inode->i_nlink      = vap->va_nlink;
@@ -106,7 +122,6 @@ vn_revalidate_core(
        inode->i_blocks     = vap->va_nblocks;
        inode->i_mtime      = vap->va_mtime;
        inode->i_ctime      = vap->va_ctime;
-       inode->i_blksize    = vap->va_blocksize;
        if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
                inode->i_flags |= S_IMMUTABLE;
        else
@@ -129,37 +144,44 @@ vn_revalidate_core(
  * Revalidate the Linux inode from the vnode.
  */
 int
-vn_revalidate(
-       struct vnode    *vp)
+__vn_revalidate(
+       bhv_vnode_t     *vp,
+       bhv_vattr_t     *vattr)
 {
-       vattr_t         va;
        int             error;
 
-       vn_trace_entry(vp, "vn_revalidate", (inst_t *)__return_address);
-       ASSERT(vp->v_fbhv != NULL);
-
-       va.va_mask = XFS_AT_STAT|XFS_AT_XFLAGS;
-       VOP_GETATTR(vp, &va, 0, NULL, error);
-       if (!error) {
-               vn_revalidate_core(vp, &va);
+       vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+       vattr->va_mask = XFS_AT_STAT | XFS_AT_XFLAGS;
+       error = bhv_vop_getattr(vp, vattr, 0, NULL);
+       if (likely(!error)) {
+               vn_revalidate_core(vp, vattr);
                VUNMODIFY(vp);
        }
        return -error;
 }
 
+int
+vn_revalidate(
+       bhv_vnode_t     *vp)
+{
+       bhv_vattr_t     vattr;
+
+       return __vn_revalidate(vp, &vattr);
+}
+
 /*
  * Add a reference to a referenced vnode.
  */
-struct vnode *
+bhv_vnode_t *
 vn_hold(
-       struct vnode    *vp)
+       bhv_vnode_t     *vp)
 {
        struct inode    *inode;
 
        XFS_STATS_INC(vn_hold);
 
        VN_LOCK(vp);
-       inode = igrab(LINVFS_GET_IP(vp));
+       inode = igrab(vn_to_inode(vp));
        ASSERT(inode);
        VN_UNLOCK(vp, 0);
 
@@ -185,31 +207,31 @@ vn_hold(
  * Vnode tracing code.
  */
 void
-vn_trace_entry(vnode_t *vp, const char *func, inst_t *ra)
+vn_trace_entry(bhv_vnode_t *vp, const char *func, inst_t *ra)
 {
        KTRACE_ENTER(vp, VNODE_KTRACE_ENTRY, func, 0, ra);
 }
 
 void
-vn_trace_exit(vnode_t *vp, const char *func, inst_t *ra)
+vn_trace_exit(bhv_vnode_t *vp, const char *func, inst_t *ra)
 {
        KTRACE_ENTER(vp, VNODE_KTRACE_EXIT, func, 0, ra);
 }
 
 void
-vn_trace_hold(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_hold(bhv_vnode_t *vp, char *file, int line, inst_t *ra)
 {
        KTRACE_ENTER(vp, VNODE_KTRACE_HOLD, file, line, ra);
 }
 
 void
-vn_trace_ref(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_ref(bhv_vnode_t *vp, char *file, int line, inst_t *ra)
 {
        KTRACE_ENTER(vp, VNODE_KTRACE_REF, file, line, ra);
 }
 
 void
-vn_trace_rele(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_rele(bhv_vnode_t *vp, char *file, int line, inst_t *ra)
 {
        KTRACE_ENTER(vp, VNODE_KTRACE_RELE, file, line, ra);
 }