Messages in this thread Patch in this message | | | Date | Mon, 10 May 2010 15:32:40 -0700 | From | Greg KH <> | Subject | [069/117] jfs: fix diAllocExt error in resizing filesystem |
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2.6.33-stable review patch. If anyone has any objections, please let us know.
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From: Bill Pemberton <wfp5p@virginia.edu>
commit 2b0b39517d1af5294128dbc2fd7ed39c8effa540 upstream.
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 Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- fs/jfs/resize.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/jfs/resize.c +++ b/fs/jfs/resize.c @@ -81,6 +81,7 @@ int jfs_extendfs(struct super_block *sb, 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, */ 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, * 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;
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