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xfs: shut down the filesystem if we screw up quota reservation

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commit 2a4bdfa8558ca2904dc17b83497dc82aa7fc05e9 upstream.

If we ever screw up the quota reservations enough to trip the
assertions, something's wrong with the quota code.  Shut down the
filesystem when this happens, because this is corruption.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Darrick J. Wong 2023-04-12 09:56:21 +05:30 committed by Greg Kroah-Hartman
parent 48f75df5b3
commit 9355fd118b
1 changed files with 13 additions and 3 deletions
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16
fs/xfs/xfs_trans_dquot.c
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@ -15,6 +15,7 @@
#include "xfs_trans_priv.h"
#include "xfs_quota.h"
#include "xfs_qm.h"
#include "xfs_error.h"
STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *);
@ -700,9 +701,14 @@ xfs_trans_dqresv(
XFS_TRANS_DQ_RES_INOS,
ninos);
}
ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount));
ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount));
ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount));
if (XFS_IS_CORRUPT(mp,
dqp->q_res_bcount < be64_to_cpu(dqp->q_core.d_bcount)) ||
XFS_IS_CORRUPT(mp,
dqp->q_res_rtbcount < be64_to_cpu(dqp->q_core.d_rtbcount)) ||
XFS_IS_CORRUPT(mp,
dqp->q_res_icount < be64_to_cpu(dqp->q_core.d_icount)))
goto error_corrupt;
xfs_dqunlock(dqp);
return 0;
@ -712,6 +718,10 @@ xfs_trans_dqresv(
if (flags & XFS_QMOPT_ENOSPC)
return -ENOSPC;
return -EDQUOT;
error_corrupt:
xfs_dqunlock(dqp);
xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
return -EFSCORRUPTED;
}