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authorGuoqing Jiang <guoqing.jiang@cloud.ionos.com>2020-03-10 00:41:36 +0300
committerJens Axboe <axboe@kernel.dk>2020-03-12 16:42:54 +0300
commit361301a222193c85bc53dbe64770271a4d4ff7f4 (patch)
treefa70d9d9bda0ff6a778065640d42739649539019 /block/blk-core.c
parentfc4cc772102511de90e708e72754800686aa0043 (diff)
downloadlinux-361301a222193c85bc53dbe64770271a4d4ff7f4.tar.xz
block: cleanup for _blk/blk_rq_prep_clone
Both cmd and sense had been moved to scsi_request, so remove the related comments to avoid confusion. And as Bart suggested, move _blk_rq_prep_clone into the only caller (blk_rq_prep_clone). Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
-rw-r--r--block/blk-core.c30
1 files changed, 10 insertions, 20 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 74edcadd6747..abfdcf81a228 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1581,23 +1581,6 @@ void blk_rq_unprep_clone(struct request *rq)
}
EXPORT_SYMBOL_GPL(blk_rq_unprep_clone);
-/*
- * Copy attributes of the original request to the clone request.
- * The actual data parts (e.g. ->cmd, ->sense) are not copied.
- */
-static void __blk_rq_prep_clone(struct request *dst, struct request *src)
-{
- dst->__sector = blk_rq_pos(src);
- dst->__data_len = blk_rq_bytes(src);
- if (src->rq_flags & RQF_SPECIAL_PAYLOAD) {
- dst->rq_flags |= RQF_SPECIAL_PAYLOAD;
- dst->special_vec = src->special_vec;
- }
- dst->nr_phys_segments = src->nr_phys_segments;
- dst->ioprio = src->ioprio;
- dst->extra_len = src->extra_len;
-}
-
/**
* blk_rq_prep_clone - Helper function to setup clone request
* @rq: the request to be setup
@@ -1610,8 +1593,6 @@ static void __blk_rq_prep_clone(struct request *dst, struct request *src)
*
* Description:
* Clones bios in @rq_src to @rq, and copies attributes of @rq_src to @rq.
- * The actual data parts of @rq_src (e.g. ->cmd, ->sense)
- * are not copied, and copying such parts is the caller's responsibility.
* Also, pages which the original bios are pointing to are not copied
* and the cloned bios just point same pages.
* So cloned bios must be completed before original bios, which means
@@ -1642,7 +1623,16 @@ int blk_rq_prep_clone(struct request *rq, struct request *rq_src,
rq->bio = rq->biotail = bio;
}
- __blk_rq_prep_clone(rq, rq_src);
+ /* Copy attributes of the original request to the clone request. */
+ rq->__sector = blk_rq_pos(rq_src);
+ rq->__data_len = blk_rq_bytes(rq_src);
+ if (rq_src->rq_flags & RQF_SPECIAL_PAYLOAD) {
+ rq->rq_flags |= RQF_SPECIAL_PAYLOAD;
+ rq->special_vec = rq_src->special_vec;
+ }
+ rq->nr_phys_segments = rq_src->nr_phys_segments;
+ rq->ioprio = rq_src->ioprio;
+ rq->extra_len = rq_src->extra_len;
return 0;