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| author |   Christoph Hellwig <hch@lst.de> | 2017-06-03 09:38:00 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-06-09 09:27:32 -0600 |
| commit | 36ffc6c1c0e67acdacb53348350d0a37206dbadf (patch) | |
| tree | 96661f7c76308bc4b0e58f5b8c5537a91cd0a5fa /fs/block_dev.c | |
| parent | fs: simplify dio_bio_complete (diff) | |
| download | linux-dev-36ffc6c1c0e67acdacb53348350d0a37206dbadf.tar.xz linux-dev-36ffc6c1c0e67acdacb53348350d0a37206dbadf.zip | |
block_dev: propagate bio_iov_iter_get_pages error in __blkdev_direct_IO
Once we move the block layer to its own status code we'll still want to
propagate the bio_iov_iter_get_pages, so restructure __blkdev_direct_IO
to take ret into account when returning the errno.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 519599dddd36..c1dc393ad6b9 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -334,7 +334,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) bool is_read = (iov_iter_rw(iter) == READ), is_sync; loff_t pos = iocb->ki_pos; blk_qc_t qc = BLK_QC_T_NONE; - int ret; + int ret = 0; if ((pos | iov_iter_alignment(iter)) & (bdev_logical_block_size(bdev) - 1)) @@ -363,7 +363,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) ret = bio_iov_iter_get_pages(bio, iter); if (unlikely(ret)) { - bio->bi_error = ret; + bio->bi_error = -EIO; bio_endio(bio); break; } @@ -412,7 +412,8 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) } __set_current_state(TASK_RUNNING); - ret = dio->bio.bi_error; + if (!ret) + ret = dio->bio.bi_error; if (likely(!ret)) ret = dio->size; |