[XFS] Fix xfs_splice_write() so appended data gets to disk.
xfs_splice_write() failed to update the on disk inode size when extending
the so when the file was closed the range extended by splice was truncated
off. Hence any region of a file written to by splice would end up as a
hole full of zeros.
SGI-PV: 955939
SGI-Modid: xfs-linux-melb:xfs-kern:26920a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 110c038..ee788b1 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -391,6 +391,8 @@
xfs_inode_t *ip = XFS_BHVTOI(bdp);
xfs_mount_t *mp = ip->i_mount;
ssize_t ret;
+ struct inode *inode = outfilp->f_mapping->host;
+ xfs_fsize_t isize;
XFS_STATS_INC(xs_write_calls);
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
@@ -417,6 +419,20 @@
if (ret > 0)
XFS_STATS_ADD(xs_write_bytes, ret);
+ isize = i_size_read(inode);
+ if (unlikely(ret < 0 && ret != -EFAULT && *ppos > isize))
+ *ppos = isize;
+
+ if (*ppos > ip->i_d.di_size) {
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ if (*ppos > ip->i_d.di_size) {
+ ip->i_d.di_size = *ppos;
+ i_size_write(inode, *ppos);
+ ip->i_update_core = 1;
+ ip->i_update_size = 1;
+ }
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ }
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
return ret;
}