From 2b0b39517d1af5294128dbc2fd7ed39c8effa540 Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Fri, 16 Apr 2010 08:01:20 -0500 Subject: [PATCH] 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 Signed-off-by: Dave Kleikamp Cc: jfs-discussion@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org --- fs/jfs/resize.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c index 7f24a0bb08ca..1aba0039f1c9 100644 --- a/fs/jfs/resize.c +++ b/fs/jfs/resize.c @@ -81,6 +81,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize) 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 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize) */ 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 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize) * 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; -- 2.20.1