Commit ba744d5e authored by Richard Kennedy's avatar Richard Kennedy Committed by Jens Axboe

block: reorder struct bio to remove padding on 64bit

Remove 8 bytes of padding from struct bio which also removes 16 bytes from
struct bio_pair to make it 248 bytes.  bio_pair then fits into one fewer
cache lines & into a smaller slab.
Signed-off-by: default avatarRichard Kennedy <>
Signed-off-by: default avatarJens Axboe <>
parent 64d01dc9
......@@ -90,10 +90,11 @@ struct bio {
unsigned int bi_comp_cpu; /* completion CPU */
atomic_t bi_cnt; /* pin count */
struct bio_vec *bi_io_vec; /* the actual vec list */
bio_end_io_t *bi_end_io;
atomic_t bi_cnt; /* pin count */
void *bi_private;
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment