block_dev: don't update file access position for sync direct IO
For sync direct IO, generic_file_direct_write/generic_file_read_iter will update file access position. Don't duplicate the update in .direct_IO. This cause my raid array can't assemble. Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -264,7 +264,6 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
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if (unlikely(bio.bi_error))
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if (unlikely(bio.bi_error))
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return bio.bi_error;
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return bio.bi_error;
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iocb->ki_pos += ret;
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return ret;
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return ret;
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}
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}
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@ -411,10 +410,8 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
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__set_current_state(TASK_RUNNING);
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__set_current_state(TASK_RUNNING);
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ret = dio->bio.bi_error;
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ret = dio->bio.bi_error;
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if (likely(!ret)) {
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if (likely(!ret))
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ret = dio->size;
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ret = dio->size;
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iocb->ki_pos += ret;
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}
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bio_put(&dio->bio);
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bio_put(&dio->bio);
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return ret;
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return ret;
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