xfs: use ->t_dfops in dqalloc transaction

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xfs_dquot_disk_alloc() receives a transaction from the caller and
passes a local dfops along to xfs_bmapi_write(). If we attach this
dfops to the transaction, we have to make sure to clear it before
returning to avoid invalid access of stack memory.

Since xfs_qm_dqread_alloc() is the only caller, pull dfops into the
caller and attach it to the transaction to eliminate this pattern
entirely.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Brian Foster 2018-07-11 22:26:11 -07:00 • committed by Darrick J. Wong

parent 32a9b7c65c

commit 2ba1372125

1 changed files with 20 additions and 14 deletions

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fs/xfs/xfs_dquot.c

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