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27 Jan 2021 23:16:19 -0800 From: Chaitanya Kulkarni To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, xen-devel@lists.xenproject.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-pm@vger.kernel.org, linux-mm@kvack.org Cc: axboe@kernel.dk, philipp.reisner@linbit.com, lars.ellenberg@linbit.com, konrad.wilk@oracle.com, roger.pau@citrix.com, minchan@kernel.org, ngupta@vflare.org, sergey.senozhatsky.work@gmail.com, agk@redhat.com, snitzer@redhat.com, hch@lst.de, sagi@grimberg.me, chaitanya.kulkarni@wdc.com, martin.petersen@oracle.com, viro@zeniv.linux.org.uk, tytso@mit.edu, jaegeuk@kernel.org, ebiggers@kernel.org, djwong@kernel.org, shaggy@kernel.org, konishi.ryusuke@gmail.com, mark@fasheh.com, jlbec@evilplan.org, joseph.qi@linux.alibaba.com, damien.lemoal@wdc.com, naohiro.aota@wdc.com, jth@kernel.org, rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz, akpm@linux-foundation.org, hare@suse.de, gustavoars@kernel.org, tiwai@suse.de, alex.shi@linux.alibaba.com, asml.silence@gmail.com, ming.lei@redhat.com, tj@kernel.org, osandov@fb.com, bvanassche@acm.org, jefflexu@linux.alibaba.com Subject: [RFC PATCH 34/34] mm: add swap_bio_new common bio helper Date: Wed, 27 Jan 2021 23:11:33 -0800 Message-Id: <20210128071133.60335-35-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1 In-Reply-To: <20210128071133.60335-1-chaitanya.kulkarni@wdc.com> References: <20210128071133.60335-1-chaitanya.kulkarni@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Signed-off-by: Chaitanya Kulkarni --- mm/page_io.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 7579485ccb5e..cc30c9a0b0a7 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -287,6 +287,17 @@ static void bio_associate_blkg_from_page(struct bio *bio, struct page *page) #define bio_associate_blkg_from_page(bio, page) do { } while (0) #endif /* CONFIG_MEMCG && CONFIG_BLK_CGROUP */ +static inline struct bio *swap_bio_new(struct block_device *dev, + unsigned op, unsigned opf, gfp_t gfp, struct page *p, + bio_end_io_t *end_io) +{ + struct bio *bio = bio_new(dev, swap_page_sector(p), op, opf, 1, gfp); + + bio->bi_end_io = end_io; + bio_add_page(bio, p, thp_size(p), 0); + return bio; +} + int __swap_writepage(struct page *page, struct writeback_control *wbc, bio_end_io_t end_write_func) { @@ -342,11 +353,9 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc, return 0; } - bio = bio_new(sis->bdev, swap_page_sector(page), REQ_OP_WRITE, - REQ_SWAP | wbc_to_write_flags(wbc), 1, GFP_NOIO); - bio->bi_end_io = end_write_func; - bio_add_page(bio, page, thp_size(page), 0); - + bio = swap_bio_new(sis->bdev, REQ_OP_WRITE, + REQ_SWAP | wbc_to_write_flags(wbc), GFP_KERNEL, + page, end_write_func); bio_associate_blkg_from_page(bio, page); count_swpout_vm_event(page); set_page_writeback(page); @@ -406,11 +415,8 @@ int swap_readpage(struct page *page, bool synchronous) } ret = 0; - bio = bio_new(sis->bdev, swap_page_sector(page), REQ_OP_READ, 0, 1, - GFP_KERNEL); - bio->bi_end_io = end_swap_bio_read; - bio_add_page(bio, page, thp_size(page), 0); - + bio = swap_bio_new(sis->bdev, REQ_OP_READ, 0, GFP_KERNEL, page, + end_swap_bio_read); disk = bio->bi_bdev->bd_disk; /* * Keep this task valid during swap readpage because the oom killer may