Mark Tinguely 997def25e4 xfs: fix node forward in xfs_node_toosmall
Commit f5ea1100 cleans up the disk to host conversions for
node directory entries, but because a variable is reused in
xfs_node_toosmall() the next node is not correctly found.
If the original node is small enough (<= 3/8 of the node size),
this change may incorrectly cause a node collapse when it should
not. That will cause an assert in xfstest generic/319:

   Assertion failed: first <= last && last < BBTOB(bp->b_length),
   file: /root/newest/xfs/fs/xfs/xfs_trans_buf.c, line: 569

Keep the original node header to get the correct forward node.

(When a node is considered for a merge with a sibling, it overwrites the
 sibling pointers of the original incore nodehdr with the sibling's
 pointers.  This leads to loop considering the original node as a merge
 candidate with itself in the second pass, and so it incorrectly
 determines a merge should occur.)

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

[v3: added Dave Chinner's (slightly modified) suggestion to the commit header,
	cleaned up whitespace.  -bpm]
2013-09-26 10:38:17 -05:00
..
2013-05-07 18:45:36 -05:00
2013-08-12 17:49:38 -05:00
2013-05-07 18:45:36 -05:00
2011-08-12 16:21:35 -05:00
2011-08-12 16:21:35 -05:00
2012-11-19 20:11:24 -06:00
2013-05-30 17:26:31 -05:00
2013-08-12 16:53:39 -05:00
2013-09-12 09:42:08 -05:00
2013-09-09 17:43:05 -05:00
2013-09-10 18:56:32 -04:00
2012-11-19 20:11:24 -06:00
2011-08-12 16:21:35 -05:00
2011-08-12 16:21:35 -05:00
2013-08-12 16:55:17 -05:00
2011-03-07 10:09:35 +11:00
2013-08-12 16:53:39 -05:00
2011-08-12 16:21:35 -05:00
2013-08-12 16:53:39 -05:00
2013-08-12 16:55:17 -05:00
2013-06-27 14:26:21 -05:00
2013-09-12 16:13:41 -07:00
2013-08-12 16:55:17 -05:00
2012-05-14 16:20:54 -05:00
2011-08-12 16:21:35 -05:00
2013-08-12 16:56:06 -05:00
2010-12-16 16:05:51 -06:00
2013-08-12 16:53:39 -05:00
2013-08-13 16:21:21 -05:00
2013-08-13 16:21:21 -05:00
2013-09-09 17:43:05 -05:00
2013-05-07 18:45:36 -05:00
2013-05-07 18:45:36 -05:00
2013-09-10 18:56:32 -04:00
2012-10-17 12:01:25 -05:00
2013-07-09 12:29:12 -07:00
2013-08-30 14:14:35 -05:00
2013-08-30 14:14:35 -05:00
2013-08-12 16:53:39 -05:00
2013-05-07 18:45:36 -05:00