1 files changed, 8 insertions, 26 deletions

diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index aa9daaea6c34..acab58c48043 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -209,30 +209,6 @@ unlock:
         return (-status);
 }
 
-/*
- * xfs_inval_cached_pages
- * 
- * This routine is responsible for keeping direct I/O and buffered I/O
- * somewhat coherent.  From here we make sure that we're at least
- * temporarily holding the inode I/O lock exclusively and then call
- * the page cache to flush and invalidate any cached pages.  If there
- * are no cached pages this routine will be very quick.
- */
-void
-xfs_inval_cached_pages(
-        vnode_t         *vp,
-        xfs_iocore_t    *io,
-        xfs_off_t       offset,
-        int             write,
-        int             relock)
-{
-        if (VN_CACHED(vp)) {
-                xfs_inval_cached_trace(io, offset, -1, ctooff(offtoct(offset)), -1);
-                VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(offset)), -1, FI_REMAPF_LOCKED);
-        }
-
-}
-
 ssize_t                 /* bytes read, or (-)  error */
 xfs_read(
         bhv_desc_t              *bdp,
@@ -304,10 +280,11 @@ xfs_read(
         if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
             !(ioflags & IO_INVIS)) {
                 vrwlock_t locktype = VRWLOCK_READ;
+                int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
 
                 ret = -XFS_SEND_DATA(mp, DM_EVENT_READ,
                                         BHV_TO_VNODE(bdp), *offset, size,
-                                        FILP_DELAY_FLAG(file), &locktype);
+                                        dmflags, &locktype);
                 if (ret) {
                         xfs_iunlock(ip, XFS_IOLOCK_SHARED);
                         goto unlock_isem;
@@ -867,11 +844,15 @@ retry:
             !(ioflags & IO_INVIS)) {
 
                 xfs_rwunlock(bdp, locktype);
+                if (need_isem)
+                        up(&inode->i_sem);
                 error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
                                 DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
                                 0, 0, 0); /* Delay flag intentionally  unused */
                 if (error)
-                        goto out_unlock_isem;
+                        goto out_nounlocks;
+                if (need_isem)
+                        down(&inode->i_sem);
                 xfs_rwlock(bdp, locktype);
                 pos = xip->i_d.di_size;
                 ret = 0;
@@ -986,6 +967,7 @@ retry:
  out_unlock_isem:
         if (need_isem)
                 up(&inode->i_sem);
+ out_nounlocks:
         return -error;
 }