| Message ID | 20210126145247.1964410-13-hch@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/17] zonefs: use bio_alloc in zonefs_file_dio_append | expand |
On Tue, Jan 26, 2021 at 7:14 AM Christoph Hellwig <hch@lst.de> wrote: > > Use an on-stack bio and biovec for the single page synchronous I/O. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> > --- > drivers/md/md.c | 26 +++++++++++++------------- > 1 file changed, 13 insertions(+), 13 deletions(-) > > diff --git a/drivers/md/md.c b/drivers/md/md.c > index e2b9dbb6e888f6..6a27f52007c871 100644 > --- a/drivers/md/md.c > +++ b/drivers/md/md.c > @@ -1021,29 +1021,29 @@ int md_super_wait(struct mddev *mddev) > int sync_page_io(struct md_rdev *rdev, sector_t sector, int size, > struct page *page, int op, int op_flags, bool metadata_op) > { > - struct bio *bio = md_bio_alloc_sync(rdev->mddev); > - int ret; > + struct bio bio; > + struct bio_vec bvec; > + > + bio_init(&bio, &bvec, 1); > > if (metadata_op && rdev->meta_bdev) > - bio_set_dev(bio, rdev->meta_bdev); > + bio_set_dev(&bio, rdev->meta_bdev); > else > - bio_set_dev(bio, rdev->bdev); > - bio_set_op_attrs(bio, op, op_flags); > + bio_set_dev(&bio, rdev->bdev); > + bio.bi_opf = op | op_flags; > if (metadata_op) > - bio->bi_iter.bi_sector = sector + rdev->sb_start; > + bio.bi_iter.bi_sector = sector + rdev->sb_start; > else if (rdev->mddev->reshape_position != MaxSector && > (rdev->mddev->reshape_backwards == > (sector >= rdev->mddev->reshape_position))) > - bio->bi_iter.bi_sector = sector + rdev->new_data_offset; > + bio.bi_iter.bi_sector = sector + rdev->new_data_offset; > else > - bio->bi_iter.bi_sector = sector + rdev->data_offset; > - bio_add_page(bio, page, size, 0); > + bio.bi_iter.bi_sector = sector + rdev->data_offset; > + bio_add_page(&bio, page, size, 0); > > - submit_bio_wait(bio); > + submit_bio_wait(&bio); > > - ret = !bio->bi_status; > - bio_put(bio); > - return ret; > + return !bio.bi_status; > } > EXPORT_SYMBOL_GPL(sync_page_io); > > -- > 2.29.2 >
diff --git a/drivers/md/md.c b/drivers/md/md.c index e2b9dbb6e888f6..6a27f52007c871 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1021,29 +1021,29 @@ int md_super_wait(struct mddev *mddev) int sync_page_io(struct md_rdev *rdev, sector_t sector, int size, struct page *page, int op, int op_flags, bool metadata_op) { - struct bio *bio = md_bio_alloc_sync(rdev->mddev); - int ret; + struct bio bio; + struct bio_vec bvec; + + bio_init(&bio, &bvec, 1); if (metadata_op && rdev->meta_bdev) - bio_set_dev(bio, rdev->meta_bdev); + bio_set_dev(&bio, rdev->meta_bdev); else - bio_set_dev(bio, rdev->bdev); - bio_set_op_attrs(bio, op, op_flags); + bio_set_dev(&bio, rdev->bdev); + bio.bi_opf = op | op_flags; if (metadata_op) - bio->bi_iter.bi_sector = sector + rdev->sb_start; + bio.bi_iter.bi_sector = sector + rdev->sb_start; else if (rdev->mddev->reshape_position != MaxSector && (rdev->mddev->reshape_backwards == (sector >= rdev->mddev->reshape_position))) - bio->bi_iter.bi_sector = sector + rdev->new_data_offset; + bio.bi_iter.bi_sector = sector + rdev->new_data_offset; else - bio->bi_iter.bi_sector = sector + rdev->data_offset; - bio_add_page(bio, page, size, 0); + bio.bi_iter.bi_sector = sector + rdev->data_offset; + bio_add_page(&bio, page, size, 0); - submit_bio_wait(bio); + submit_bio_wait(&bio); - ret = !bio->bi_status; - bio_put(bio); - return ret; + return !bio.bi_status; } EXPORT_SYMBOL_GPL(sync_page_io);
Use an on-stack bio and biovec for the single page synchronous I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/md/md.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-)