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net: do not consume a cacheline for system_page_pool

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There is no reason to consume a full cacheline to store system_page_pool.

We can eventually move it to softnet_data later for full locality control.

Fixes: 2b0cfa6e49 ("net: add generic percpu page_pool allocator")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://lore.kernel.org/r/20240328173448.2262593-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2024-03-28 17:34:48 +00:00 committed by Jakub Kicinski
parent 50ba9d7ec4
commit 5086f0fe46
1 changed files with 1 additions and 1 deletions
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net/core/dev.c
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@ -429,7 +429,7 @@ EXPORT_PER_CPU_SYMBOL(softnet_data);
* PP consumers must pay attention to run APIs in the appropriate context
* (e.g. NAPI context).
*/
static DEFINE_PER_CPU_ALIGNED(struct page_pool *, system_page_pool);
static DEFINE_PER_CPU(struct page_pool *, system_page_pool);
#ifdef CONFIG_LOCKDEP
/*