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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>
zero-colors
Shaohua Li 2016-12-13 19:07:55 -08:00 committed by Jens Axboe
parent d2a6191840
commit 7a62a52333
1 changed files with 1 additions and 4 deletions
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5
fs/block_dev.c
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@ -264,7 +264,6 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
if (unlikely(bio.bi_error))
return bio.bi_error;
iocb->ki_pos += ret;
return ret;
}
@ -411,10 +410,8 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
__set_current_state(TASK_RUNNING);
ret = dio->bio.bi_error;
if (likely(!ret)) {
if (likely(!ret))
ret = dio->size;
iocb->ki_pos += ret;
}
bio_put(&dio->bio);
return ret;