swap: use __bio_add_page to add page to bio
The swap code only adds a single page to a newly created bio. So use __bio_add_page() to add the page which is guaranteed to succeed in this case. This brings us closer to marking bio_add_page() as __must_check. Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/5bdafd9de806b2dab92302b30eb7a3a5f10c37d9.1685532726.git.johannes.thumshirn@wdc.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
parent
1ccf164ec8
commit
cb58bf91b1
@ -338,7 +338,7 @@ static void swap_writepage_bdev_sync(struct page *page,
|
||||
bio_init(&bio, sis->bdev, &bv, 1,
|
||||
REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc));
|
||||
bio.bi_iter.bi_sector = swap_page_sector(page);
|
||||
bio_add_page(&bio, page, thp_size(page), 0);
|
||||
__bio_add_page(&bio, page, thp_size(page), 0);
|
||||
|
||||
bio_associate_blkg_from_page(&bio, page);
|
||||
count_swpout_vm_event(page);
|
||||
@ -360,7 +360,7 @@ static void swap_writepage_bdev_async(struct page *page,
|
||||
GFP_NOIO);
|
||||
bio->bi_iter.bi_sector = swap_page_sector(page);
|
||||
bio->bi_end_io = end_swap_bio_write;
|
||||
bio_add_page(bio, page, thp_size(page), 0);
|
||||
__bio_add_page(bio, page, thp_size(page), 0);
|
||||
|
||||
bio_associate_blkg_from_page(bio, page);
|
||||
count_swpout_vm_event(page);
|
||||
@ -468,7 +468,7 @@ static void swap_readpage_bdev_sync(struct page *page,
|
||||
|
||||
bio_init(&bio, sis->bdev, &bv, 1, REQ_OP_READ);
|
||||
bio.bi_iter.bi_sector = swap_page_sector(page);
|
||||
bio_add_page(&bio, page, thp_size(page), 0);
|
||||
__bio_add_page(&bio, page, thp_size(page), 0);
|
||||
/*
|
||||
* Keep this task valid during swap readpage because the oom killer may
|
||||
* attempt to access it in the page fault retry time check.
|
||||
@ -488,7 +488,7 @@ static void swap_readpage_bdev_async(struct page *page,
|
||||
bio = bio_alloc(sis->bdev, 1, REQ_OP_READ, GFP_KERNEL);
|
||||
bio->bi_iter.bi_sector = swap_page_sector(page);
|
||||
bio->bi_end_io = end_swap_bio_read;
|
||||
bio_add_page(bio, page, thp_size(page), 0);
|
||||
__bio_add_page(bio, page, thp_size(page), 0);
|
||||
count_vm_event(PSWPIN);
|
||||
submit_bio(bio);
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user