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* [PATCH v2] xfs:  fix assertion failure at xfs_setattr_nonsize
@ 2013-11-22 16:08 Jeff Liu
  2013-11-23  8:51 ` Christoph Hellwig
  0 siblings, 1 reply; 2+ messages in thread
From: Jeff Liu @ 2013-11-22 16:08 UTC (permalink / raw)
  To: xfs@oss.sgi.com

From: Jie Liu <jeff.liu@oracle.com>

For CRC enabled v5 super block, change a file's ownership can simply
trigger ASSERT failure at xfs_setattr_nonsize() if both group and
project quota are enabled, i.e,

[  305.337609] XFS: Assertion failed: !XFS_IS_PQUOTA_ON(mp), file: fs/xfs/xfs_iops.c, line: 621
[  305.339250] Kernel BUG at ffffffffa0a7fa32 [verbose debug info unavailable]
[  305.383939] Call Trace:
[  305.385536]  [<ffffffffa0a7d95a>] xfs_setattr_nonsize+0x69a/0x720 [xfs]
[  305.387142]  [<ffffffffa0a7dea9>] xfs_vn_setattr+0x29/0x70 [xfs]
[  305.388727]  [<ffffffff811ca388>] notify_change+0x1a8/0x350
[  305.390298]  [<ffffffff811ac39d>] chown_common+0xfd/0x110
[  305.391868]  [<ffffffff811ad6bf>] SyS_fchownat+0xaf/0x110
[  305.393440]  [<ffffffff811ad760>] SyS_lchown+0x20/0x30
[  305.394995]  [<ffffffff8170f7dd>] system_call_fastpath+0x1a/0x1f
[  305.399870] RIP  [<ffffffffa0a7fa32>] assfail+0x22/0x30 [xfs]

This fix adjust the assertion to check if the super block support both
quota inodes or not.

Signed-off-by: root <root@kdev>
---
 v2: assert (!XFS_IS_PQUOTA_ON(mp)) only for old super block

 fs/xfs/xfs_iops.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 27e0e54..104455b 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -618,7 +618,8 @@ xfs_setattr_nonsize(
 		}
 		if (!gid_eq(igid, gid)) {
 			if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_GQUOTA_ON(mp)) {
-				ASSERT(!XFS_IS_PQUOTA_ON(mp));
+				ASSERT(xfs_sb_version_has_pquotino(&mp->m_sb) ||
+				       !XFS_IS_PQUOTA_ON(mp));
 				ASSERT(mask & ATTR_GID);
 				ASSERT(gdqp);
 				olddquot2 = xfs_qm_vop_chown(tp, ip,
-- 
1.7.9.5

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^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH v2] xfs:  fix assertion failure at xfs_setattr_nonsize
  2013-11-22 16:08 [PATCH v2] xfs: fix assertion failure at xfs_setattr_nonsize Jeff Liu
@ 2013-11-23  8:51 ` Christoph Hellwig
  0 siblings, 0 replies; 2+ messages in thread
From: Christoph Hellwig @ 2013-11-23  8:51 UTC (permalink / raw)
  To: Jeff Liu; +Cc: xfs@oss.sgi.com

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>

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^ permalink raw reply	[flat|nested] 2+ messages in thread

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