Commit df677140 authored by Martin K. Petersen's avatar Martin K. Petersen Committed by Jens Axboe
Browse files

block: biovec_slab vs. CONFIG_BLK_DEV_INTEGRITY 



The block integrity subsystem no longer uses the bio_vec slabs so this
code can safely be compiled in.

Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent de701c74

fs/bio.c

+1 −3
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ static mempool_t *bio_split_pool __read_mostly; 
 * unsigned short

 */

#define BV(x) { .nr_vecs = x, .name = "biovec-"__stringify(x) }

struct biovec_slab bvec_slabs[BIOVEC_NR_POOLS] __read_mostly = {

static struct biovec_slab bvec_slabs[BIOVEC_NR_POOLS] __read_mostly = {

	BV(1), BV(4), BV(16), BV(64), BV(128), BV(BIO_MAX_PAGES),

};

#undef BV
@@ -1656,12 +1656,10 @@ static void __init biovec_init_slabs(void) 
		int size;

		struct biovec_slab *bvs = bvec_slabs + i;



#ifndef CONFIG_BLK_DEV_INTEGRITY

		if (bvs->nr_vecs <= BIO_INLINE_VECS) {

			bvs->slab = NULL;

			continue;

		}

#endif



		size = bvs->nr_vecs * sizeof(struct bio_vec);

		bvs->slab = kmem_cache_create(bvs->name, size, 0,

include/linux/bio.h

+0 −1
Original line number Diff line number Diff line
@@ -304,7 +304,6 @@ struct biovec_slab { 
};



extern struct bio_set *fs_bio_set;

extern struct biovec_slab bvec_slabs[BIOVEC_NR_POOLS] __read_mostly;



/*

 * a small number of entries is fine, not going to be performance critical.