[XFS] Catch unwritten extent conversion errors.

On unwritten I/O completion, we fail to propagate an error when converting
the extent to a written extent. This means that the I/O silently fails.
propagate the error onto the ioend so that the inode is marked with an
error appropriately.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30826a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 169e6c062794..a55c3b26d840 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -243,8 +243,12 @@ xfs_end_bio_unwritten(
         size_t                  size = ioend->io_size;
 
         if (likely(!ioend->io_error)) {
-                if (!XFS_FORCED_SHUTDOWN(ip->i_mount))
-                        xfs_iomap_write_unwritten(ip, offset, size);
+                if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+                        int error;
+                        error = xfs_iomap_write_unwritten(ip, offset, size);
+                        if (error)
+                                ioend->io_error = error;
+                }
                 xfs_setfilesize(ioend);
         }
         xfs_destroy_ioend(ioend);