[XFS] propogate return codes from flush routines

This patch handles error return values in fs_flush_pages and
fs_flushinval_pages. It changes the prototype of fs_flushinval_pages so we
can propogate the errors and handle them at higher layers. I also modified
xfs_itruncate_start so that it could propogate the error further.

SGI-PV: 961990
SGI-Modid: xfs-linux-melb:xfs-kern:28231a

Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Stewart Smith <stewart@flamingspork.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index fb6f22c511e2..de35d18cc002 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -199,7 +199,9 @@ xfs_swap_extents(
 
         if (VN_CACHED(tvp) != 0) {
                 xfs_inval_cached_trace(&tip->i_iocore, 0, -1, 0, -1);
-                bhv_vop_flushinval_pages(tvp, 0, -1, FI_REMAPF_LOCKED);
+                error = bhv_vop_flushinval_pages(tvp, 0, -1, FI_REMAPF_LOCKED);
+                if (error)
+                        goto error0;
         }
 
         /* Verify O_DIRECT for ftmp */