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| author |   Ming Lei <ming.lei@redhat.com> | 2019-02-15 19:13:21 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-02-15 08:40:12 -0700 |
| commit | 6861428921b51113520cd47897be6c2774e4fc58 (patch) | |
| tree | 5b25022aba256e4a9d8bfeb8b0d14036d83155b3 /include/linux/bio.h | |
| parent | block: enable multipage bvecs (diff) | |
| download | wireguard-linux-6861428921b51113520cd47897be6c2774e4fc58.tar.xz wireguard-linux-6861428921b51113520cd47897be6c2774e4fc58.zip | |
block: always define BIO_MAX_PAGES as 256
Now multi-page bvec can cover CONFIG_THP_SWAP, so we don't need to
increase BIO_MAX_PAGES for it.
CONFIG_THP_SWAP needs to split one THP into normal pages and adds
them all to one bio. With multipage-bvec, it just takes one bvec to
hold them all.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/bio.h')
| -rw-r--r-- | include/linux/bio.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 9f77adcfde82..bdd11d4c2f05 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -34,15 +34,7 @@ #define BIO_BUG_ON #endif -#ifdef CONFIG_THP_SWAP -#if HPAGE_PMD_NR > 256 -#define BIO_MAX_PAGES HPAGE_PMD_NR -#else #define BIO_MAX_PAGES 256 -#endif -#else -#define BIO_MAX_PAGES 256 -#endif #define bio_prio(bio) (bio)->bi_ioprio #define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio) |