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net: move skbuff_cache(s) to net_hotdata

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skbuff_cache, skbuff_fclone_cache and skb_small_head_cache
are used in rx/tx fast paths.

Move them to net_hotdata for better cache locality.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240306160031.874438-11-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet
2024-03-06 16:00:23 +00:00
committed by Jakub Kicinski
parent 71c0de9bac
commit aa70d2d16f
6 changed files with 32 additions and 29 deletions
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4
kernel/bpf/cpumap.c
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@ -24,6 +24,7 @@
#include <linux/filter.h>
#include <linux/ptr_ring.h>
#include <net/xdp.h>
#include <net/hotdata.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
@ -326,7 +327,8 @@ static int cpu_map_kthread_run(void *data)
/* Support running another XDP prog on this CPU */
nframes = cpu_map_bpf_prog_run(rcpu, frames, xdp_n, &stats, &list);
if (nframes) {
m = kmem_cache_alloc_bulk(skbuff_cache, gfp, nframes, skbs);
m = kmem_cache_alloc_bulk(net_hotdata.skbuff_cache,
gfp, nframes, skbs);
if (unlikely(m == 0)) {
for (i = 0; i < nframes; i++)
skbs[i] = NULL; /* effect: xdp_return_frame */