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After the previous fix, there still has another ASSERT failure if turning
off any type of quota while fsstress is running at the same time.
Backtrace in this case:
[ 50.867897] XFS: Assertion failed: XFS_IS_GQUOTA_ON(mp), file: fs/xfs/xfs_qm.c, line: 2118
[ 50.867924] ------------[ cut here ]------------
... <snip>
[ 50.867957] Kernel BUG at ffffffffa0b55a32 [verbose debug info unavailable]
[ 50.867999] invalid opcode: 0000 [#1] SMP
[ 50.869407] Call Trace:
[ 50.869446] [<ffffffffa0bc408a>] xfs_qm_vop_create_dqattach+0x19a/0x2d0 [xfs]
[ 50.869512] [<ffffffffa0b9cc45>] xfs_create+0x5c5/0x6a0 [xfs]
[ 50.869564] [<ffffffffa0b5307c>] xfs_vn_mknod+0xac/0x1d0 [xfs]
[ 50.869615] [<ffffffffa0b531d6>] xfs_vn_mkdir+0x16/0x20 [xfs]
[ 50.869655] [<ffffffff811becd5>] vfs_mkdir+0x95/0x130
[ 50.869689] [<ffffffff811bf63a>] SyS_mkdirat+0xaa/0xe0
[ 50.869723] [<ffffffff811bf689>] SyS_mkdir+0x19/0x20
[ 50.869757] [<ffffffff8170f7dd>] system_call_fastpath+0x1a/0x1f
[ 50.869793] Code: 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 <snip>
[ 50.870003] RIP [<ffffffffa0b55a32>] assfail+0x22/0x30 [xfs]
[ 50.870050] RSP <ffff88002941fd60>
[ 50.879251] ---[ end trace c93a2b342341c65b ]---
We're hitting the ASSERT(XFS_IS_*QUOTA_ON(mp)) in xfs_qm_vop_create_dqattach(),
however the assertion itself is not right IMHO. While performing quota off, we
firstly clear the XFS_*QUOTA_ACTIVE bit(s) from struct xfs_mount without taking
any special locks, see xfs_qm_scall_quotaoff(). Hence there is no guarantee
that the desired quota is still active.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit 37eb9706ebf5b99d14c6086cdeef2c2f73f9c9fb)
30d161c9aa