diff options
| author | NeilBrown <neilb@suse.com> | 2017-06-18 06:38:59 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-18 20:40:59 +0200 |
| commit | 9b10f6a9c2aaab49c56b8cff0facdc1b64ed7e1c (patch) | |
| tree | 13b9e81781e6d44a15dca67215c950ab019f714b | |
| parent | bcache: use kmalloc to allocate bio in bch_data_verify() (diff) | |
| download | linux-9b10f6a9c2aaab49c56b8cff0facdc1b64ed7e1c.tar.xz linux-9b10f6a9c2aaab49c56b8cff0facdc1b64ed7e1c.zip | |
block: remove bio_clone() and all references.
bio_clone() is no longer used.
Only bio_clone_bioset() or bio_clone_fast().
This is for the best, as bio_clone() used fs_bio_set,
and filesystems are unlikely to want to use bio_clone().
So remove bio_clone() and all references.
This includes a fix to some incorrect documentation.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | Documentation/block/biodoc.txt | 2 | ||||
| -rw-r--r-- | block/bio.c | 2 | ||||
| -rw-r--r-- | block/blk-merge.c | 6 | ||||
| -rw-r--r-- | drivers/md/md.c | 2 | ||||
| -rw-r--r-- | include/linux/bio.h | 5 |
5 files changed, 6 insertions, 11 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 01ddeaf64b0f..9490f2845f06 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -632,7 +632,7 @@ to i/o submission, if the bio fields are likely to be accessed after the i/o is issued (since the bio may otherwise get freed in case i/o completion happens in the meantime). -The bio_clone() routine may be used to duplicate a bio, where the clone +The bio_clone_fast() routine may be used to duplicate a bio, where the clone shares the bio_vec_list with the original bio (i.e. both point to the same bio_vec_list). This would typically be used for splitting i/o requests in lvm or md. diff --git a/block/bio.c b/block/bio.c index 2bd064906e06..89a51bd49ab7 100644 --- a/block/bio.c +++ b/block/bio.c @@ -547,7 +547,7 @@ EXPORT_SYMBOL(zero_fill_bio); * * Description: * Put a reference to a &struct bio, either one you have gotten with - * bio_alloc, bio_get or bio_clone. The last put of a bio will free it. + * bio_alloc, bio_get or bio_clone_*. The last put of a bio will free it. **/ void bio_put(struct bio *bio) { diff --git a/block/blk-merge.c b/block/blk-merge.c index 51c84540d3bb..e7862e9dcc39 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -115,13 +115,13 @@ static struct bio *blk_bio_segment_split(struct request_queue *q, * With arbitrary bio size, the incoming bio may be very * big. We have to split the bio into small bios so that * each holds at most BIO_MAX_PAGES bvecs because - * bio_clone() can fail to allocate big bvecs. + * bio_clone_bioset() can fail to allocate big bvecs. * - * Those drivers which will need to use bio_clone() + * Those drivers which will need to use bio_clone_bioset() * should tell us in some way. For now, impose the * BIO_MAX_PAGES limit on all queues. * - * TODO: handle users of bio_clone() differently. + * TODO: handle users of bio_clone_bioset() differently. */ if (bvecs++ >= BIO_MAX_PAGES) goto split; diff --git a/drivers/md/md.c b/drivers/md/md.c index 07fe780ccd29..31bcbfb09fef 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -185,7 +185,7 @@ static int start_readonly; static bool create_on_open = true; /* bio_clone_mddev - * like bio_clone, but with a local bio set + * like bio_clone_bioset, but with a local bio set */ struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, diff --git a/include/linux/bio.h b/include/linux/bio.h index 32c786baa10a..40d054185277 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -395,11 +395,6 @@ static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs) return bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set); } -static inline struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask) -{ - return bio_clone_bioset(bio, gfp_mask, fs_bio_set); -} - static inline struct bio *bio_kmalloc(gfp_t gfp_mask, unsigned int nr_iovecs) { return bio_alloc_bioset(gfp_mask, nr_iovecs, NULL); |