From d8207f69589c74037128ff6c9e1a44223fad3b7c Mon Sep 17 00:00:00 2001 From: Gu Zheng Date: Thu, 25 Jul 2013 11:30:01 +0800 Subject: [PATCH] f2fs: move bio_private allocation out of f2fs_bio_alloc() bio->bi_private is not always needed. As in the reading data path, end_read_io does not need bio_private for further using, so moving bio_private allocation out of f2fs_bio_alloc(). Alloc it in the submit_write_page(), and ignore it in the f2fs_readpage(). Signed-off-by: Gu Zheng Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 1 - fs/f2fs/segment.c | 19 +++++++++++-------- 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index c73c394c3d8c..19cd7c6e964c 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -365,7 +365,6 @@ static void read_end_io(struct bio *bio, int err) } unlock_page(page); } while (bvec >= bio->bi_io_vec); - kfree(bio->bi_private); bio_put(bio); } diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index a86d125a9885..9b74ae2137d1 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -611,18 +611,12 @@ static void f2fs_end_io_write(struct bio *bio, int err) struct bio *f2fs_bio_alloc(struct block_device *bdev, int npages) { struct bio *bio; - struct bio_private *priv; -retry: - priv = kmalloc(sizeof(struct bio_private), GFP_NOFS); - if (!priv) { - cond_resched(); - goto retry; - } /* No failure on bio allocation */ bio = bio_alloc(GFP_NOIO, npages); bio->bi_bdev = bdev; - bio->bi_private = priv; + bio->bi_private = NULL; + return bio; } @@ -681,8 +675,17 @@ static void submit_write_page(struct f2fs_sb_info *sbi, struct page *page, do_submit_bio(sbi, type, false); alloc_new: if (sbi->bio[type] == NULL) { + struct bio_private *priv; +retry: + priv = kmalloc(sizeof(struct bio_private), GFP_NOFS); + if (!priv) { + cond_resched(); + goto retry; + } + sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi)); sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr); + sbi->bio[type]->bi_private = priv; /* * The end_io will be assigned at the sumbission phase. * Until then, let bio_add_page() merge consecutive IOs as much -- 2.39.2