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| author | fan.du <fan.du@windriver.com> | 2013-08-05 09:13:03 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-05 19:20:51 (GMT) |
| commit | 5a139296f872d438f17f7219411321b603c1622b (patch) | |
| tree | 205c06b348c85194810033ec6f469f446ef385ab /include/net/nexthop.h | |
| parent | e7f63f1dc4bd643d9249c653e60c530d4a438147 (diff) | |
| download | linux-fsl-qoriq-5a139296f872d438f17f7219411321b603c1622b.tar.xz | |
sctp: Pack dst_cookie into 1st cacheline hole for 64bit host
As dst_cookie is used in fast path sctp_transport_dst_check.
Before:
struct sctp_transport {
struct list_head transports; /* 0 16 */
atomic_t refcnt; /* 16 4 */
__u32 dead:1; /* 20:31 4 */
__u32 rto_pending:1; /* 20:30 4 */
__u32 hb_sent:1; /* 20:29 4 */
__u32 pmtu_pending:1; /* 20:28 4 */
/* XXX 28 bits hole, try to pack */
__u32 sack_generation; /* 24 4 */
/* XXX 4 bytes hole, try to pack */
struct flowi fl; /* 32 64 */
/* --- cacheline 1 boundary (64 bytes) was 32 bytes ago --- */
union sctp_addr ipaddr; /* 96 28 */
After:
struct sctp_transport {
struct list_head transports; /* 0 16 */
atomic_t refcnt; /* 16 4 */
__u32 dead:1; /* 20:31 4 */
__u32 rto_pending:1; /* 20:30 4 */
__u32 hb_sent:1; /* 20:29 4 */
__u32 pmtu_pending:1; /* 20:28 4 */
/* XXX 28 bits hole, try to pack */
__u32 sack_generation; /* 24 4 */
u32 dst_cookie; /* 28 4 */
struct flowi fl; /* 32 64 */
/* --- cacheline 1 boundary (64 bytes) was 32 bytes ago --- */
union sctp_addr ipaddr; /* 96 28 */
Signed-off-by: Fan Du <fan.du@windriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/nexthop.h')
0 files changed, 0 insertions, 0 deletions