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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-01-29 04:38:57 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-02-26 15:49:51 -0700 |
| commit | 5f7136db82996089cdfb2939c7664b29e9da141d (patch) | |
| tree | f6fb9ac2dafb2ca03002f6c86bc0fb1062fadcfa /fs/erofs/data.c | |
| parent | 94d4bffdda21baa2c749bc229c41811a7559dd15 (diff) | |
| download | linux-5f7136db82996089cdfb2939c7664b29e9da141d.tar.gz linux-5f7136db82996089cdfb2939c7664b29e9da141d.tar.bz2 linux-5f7136db82996089cdfb2939c7664b29e9da141d.zip | |
block: Add bio_max_segs
It's often inconvenient to use BIO_MAX_PAGES due to min() requiring the
sign to be the same. Introduce bio_max_segs() and change BIO_MAX_PAGES to
be unsigned to make it easier for the users.
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/erofs/data.c')
| -rw-r--r-- | fs/erofs/data.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/erofs/data.c b/fs/erofs/data.c index ea4f693bee22..f88851c5c250 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -215,10 +215,8 @@ submit_bio_retry: /* max # of continuous pages */ if (nblocks > DIV_ROUND_UP(map.m_plen, PAGE_SIZE)) nblocks = DIV_ROUND_UP(map.m_plen, PAGE_SIZE); - if (nblocks > BIO_MAX_PAGES) - nblocks = BIO_MAX_PAGES; - bio = bio_alloc(GFP_NOIO, nblocks); + bio = bio_alloc(GFP_NOIO, bio_max_segs(nblocks)); bio->bi_end_io = erofs_readendio; bio_set_dev(bio, sb->s_bdev); |