jfs: fix diAllocExt error in resizing filesystem
Resizing the filesystem would result in an diAllocExt error in some
instances because changes in bmp->db_agsize would not get noticed if
goto extendBmap was called.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index 7f24a0b..1aba003 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -81,6 +81,7 @@
struct inode *iplist[1];
struct jfs_superblock *j_sb, *j_sb2;
uint old_agsize;
+ int agsizechanged = 0;
struct buffer_head *bh, *bh2;
/* If the volume hasn't grown, get out now */
@@ -333,6 +334,9 @@
*/
if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
goto error_out;
+
+ agsizechanged |= (bmp->db_agsize != old_agsize);
+
/*
* the map now has extended to cover additional nblocks:
* dn_mapsize = oldMapsize + nblocks;
@@ -432,7 +436,7 @@
* will correctly identify the new ag);
*/
/* if new AG size the same as old AG size, done! */
- if (bmp->db_agsize != old_agsize) {
+ if (agsizechanged) {
if ((rc = diExtendFS(ipimap, ipbmap)))
goto error_out;