Merge commit 'takashi/topic/asoc' into for-2.6.31

1 files changed, 15 insertions, 46 deletions

diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 08ce72316bfe..5aaa2d7ec155 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -338,38 +338,6 @@ xfs_iomap_eof_align_last_fsb(
 }
 
 STATIC int
-xfs_flush_space(
-	xfs_inode_t	*ip,
-	int		*fsynced,
-	int		*ioflags)
-{
-	switch (*fsynced) {
-	case 0:
-		if (ip->i_delayed_blks) {
-			xfs_iunlock(ip, XFS_ILOCK_EXCL);
-			xfs_flush_inode(ip);
-			xfs_ilock(ip, XFS_ILOCK_EXCL);
-			*fsynced = 1;
-		} else {
-			*ioflags |= BMAPI_SYNC;
-			*fsynced = 2;
-		}
-		return 0;
-	case 1:
-		*fsynced = 2;
-		*ioflags |= BMAPI_SYNC;
-		return 0;
-	case 2:
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-		xfs_flush_device(ip);
-		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		*fsynced = 3;
-		return 0;
-	}
-	return 1;
-}
-
-STATIC int
 xfs_cmn_err_fsblock_zero(
 	xfs_inode_t	*ip,
 	xfs_bmbt_irec_t	*imap)
@@ -538,15 +506,9 @@ error_out:
 }
 
 /*
- * If the caller is doing a write at the end of the file,
- * then extend the allocation out to the file system's write
- * iosize.  We clean up any extra space left over when the
- * file is closed in xfs_inactive().
- *
- * For sync writes, we are flushing delayed allocate space to
- * try to make additional space available for allocation near
- * the filesystem full boundary - preallocation hurts in that
- * situation, of course.
+ * If the caller is doing a write at the end of the file, then extend the
+ * allocation out to the file system's write iosize.  We clean up any extra
+ * space left over when the file is closed in xfs_inactive().
  */
 STATIC int
 xfs_iomap_eof_want_preallocate(
@@ -565,7 +527,7 @@ xfs_iomap_eof_want_preallocate(
 	int		n, error, imaps;
 
 	*prealloc = 0;
-	if ((ioflag & BMAPI_SYNC) || (offset + count) <= ip->i_size)
+	if ((offset + count) <= ip->i_size)
 		return 0;
 
 	/*
@@ -611,7 +573,7 @@ xfs_iomap_write_delay(
 	xfs_extlen_t	extsz;
 	int		nimaps;
 	xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
-	int		prealloc, fsynced = 0;
+	int		prealloc, flushed = 0;
 	int		error;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -627,12 +589,12 @@ xfs_iomap_write_delay(
 	extsz = xfs_get_extsz_hint(ip);
 	offset_fsb = XFS_B_TO_FSBT(mp, offset);
 
-retry:
 	error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,
 				ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
 	if (error)
 		return error;
 
+retry:
 	if (prealloc) {
 		aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
 		ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
@@ -659,15 +621,22 @@ retry:
 
 	/*
 	 * If bmapi returned us nothing, and if we didn't get back EDQUOT,
-	 * then we must have run out of space - flush delalloc, and retry..
+	 * then we must have run out of space - flush all other inodes with
+	 * delalloc blocks and retry without EOF preallocation.
 	 */
 	if (nimaps == 0) {
 		xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
 					ip, offset, count);
-		if (xfs_flush_space(ip, &fsynced, &ioflag))
+		if (flushed)
 			return XFS_ERROR(ENOSPC);
 
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		xfs_flush_inodes(ip);
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+		flushed = 1;
 		error = 0;
+		prealloc = 0;
 		goto retry;
 	}