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| author | Jens Axboe <axboe@kernel.dk> | 2023-03-29 16:52:15 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-03-30 16:12:29 +0200 |
| commit | de4f5fed3f231a8ff4790bf52975f847b95b85ea (patch) | |
| tree | 0f546e08dadb0145ca9347ce3fc2b8936d48c5f6 /block/blk-map.c | |
| parent | block: ensure bio_alloc_map_data() deals with ITER_UBUF correctly (diff) | |
| download | linux-de4f5fed3f231a8ff4790bf52975f847b95b85ea.tar.xz linux-de4f5fed3f231a8ff4790bf52975f847b95b85ea.zip | |
iov_iter: add iter_iovec() helper
This returns a pointer to the current iovec entry in the iterator. Only
useful with ITER_IOVEC right now, but it prepares us to treat ITER_UBUF
and ITER_IOVEC identically for the first segment.
Rename struct iov_iter->iov to iov_iter->__iov to find any potentially
troublesome spots, and also to prevent anyone from adding new code that
accesses iter->iov directly.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-map.c')
| -rw-r--r-- | block/blk-map.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk-map.c b/block/blk-map.c index 3bfcad64d67c..04c55f1c492e 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -31,8 +31,8 @@ static struct bio_map_data *bio_alloc_map_data(struct iov_iter *data, return NULL; bmd->iter = *data; if (iter_is_iovec(data)) { - memcpy(bmd->iov, data->iov, sizeof(struct iovec) * data->nr_segs); - bmd->iter.iov = bmd->iov; + memcpy(bmd->iov, iter_iov(data), sizeof(struct iovec) * data->nr_segs); + bmd->iter.__iov = bmd->iov; } return bmd; } |