xfs: enforce synchronous writes in xfs_bwrite
xfs_bwrite is used with the intention of synchronously writing out buffers, but currently it does not actually clear the async flag if that's left from previous writes but instead implements async behaviour if it finds it. Remove the code handling asynchronous writes as we've got rid of those entirely outside of the log and delwri buffers, and make sure that we clear the async and read flags before writing the buffer. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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@ -1007,25 +1007,20 @@ xfs_bwrite(
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struct xfs_mount *mp,
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struct xfs_buf *bp)
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{
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int iowait = (bp->b_flags & XBF_ASYNC) == 0;
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int error = 0;
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int error;
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bp->b_strat = xfs_bdstrat_cb;
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bp->b_mount = mp;
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bp->b_flags |= XBF_WRITE;
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if (!iowait)
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bp->b_flags |= _XBF_RUN_QUEUES;
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bp->b_flags &= ~(XBF_ASYNC | XBF_READ);
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xfs_buf_delwri_dequeue(bp);
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xfs_buf_iostrategy(bp);
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if (iowait) {
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error = xfs_buf_iowait(bp);
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if (error)
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xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
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xfs_buf_relse(bp);
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}
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error = xfs_buf_iowait(bp);
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if (error)
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xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
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xfs_buf_relse(bp);
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return error;
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}
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@ -372,7 +372,6 @@ xfs_sync_fsdata(
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if (XFS_BUF_ISPINNED(bp))
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xfs_log_force(mp, 0);
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XFS_BUF_UNASYNC(bp);
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return xfs_bwrite(mp, bp);
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}
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