xfs-linux/xfs_iomap.c - diff

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version 1.55, 2007/09/13 06:10:29	version 1.56, 2007/09/13 06:11:17
Line 199 xfs_iomap(	Line 199 xfs_iomap(
if (XFS_FORCED_SHUTDOWN(mp))	if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);	return XFS_ERROR(EIO);

switch (flags &	switch (flags & (BMAPI_READ \| BMAPI_WRITE \| BMAPI_ALLOCATE)) {
(BMAPI_READ \| BMAPI_WRITE \| BMAPI_ALLOCATE \|
BMAPI_UNWRITTEN)) {
case BMAPI_READ:	case BMAPI_READ:
xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);	xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);
lockmode = XFS_LCK_MAP_SHARED(mp, io);	lockmode = XFS_LCK_MAP_SHARED(mp, io);
Line 226 xfs_iomap(	Line 224 xfs_iomap(
XFS_ILOCK(mp, io, lockmode);	XFS_ILOCK(mp, io, lockmode);
}	}
break;	break;
case BMAPI_UNWRITTEN:
goto phase2;
default:	default:
BUG();	BUG();
}	}
Line 246 xfs_iomap(	Line 242 xfs_iomap(
if (error)	if (error)
goto out;	goto out;

phase2:	switch (flags & (BMAPI_WRITE\|BMAPI_ALLOCATE)) {
switch (flags & (BMAPI_WRITE\|BMAPI_ALLOCATE\|BMAPI_UNWRITTEN)) {
case BMAPI_WRITE:	case BMAPI_WRITE:
/* If we found an extent, return it */	/* If we found an extent, return it */
if (nimaps &&	if (nimaps &&
Line 285 phase2:	Line 280 phase2:
error = XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count,	error = XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count,
&imap, &nimaps);	&imap, &nimaps);
break;	break;
case BMAPI_UNWRITTEN:
lockmode = 0;
error = XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count);
nimaps = 0;
break;
}	}

if (nimaps) {	if (nimaps) {