From: Alexander Lobakin <aleksander.lobakin@intel.com>
To: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: Alexander Lobakin <aleksander.lobakin@intel.com>,
Maciej Fijalkowski <maciej.fijalkowski@intel.com>,
Michal Kubiak <michal.kubiak@intel.com>,
Larysa Zaremba <larysa.zaremba@intel.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH RFC net-next 16/34] jump_label: export static_key_slow_{inc,dec}_cpuslocked()
Date: Sat, 23 Dec 2023 03:55:36 +0100 [thread overview]
Message-ID: <20231223025554.2316836-17-aleksander.lobakin@intel.com> (raw)
In-Reply-To: <20231223025554.2316836-1-aleksander.lobakin@intel.com>
Sometimes, there's a need to modify a lot of static keys or modify the
same key multiple times in a loop. In that case, it seems more optimal
to lock cpu_read_lock once and then call _cpuslocked() variants.
The enable/disable functions are already exported, the refcounted
counterparts however are not. Fix that to allow modules to save some
cycles.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
---
kernel/jump_label.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index d9c822bbffb8..f0375372b484 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -177,6 +177,7 @@ bool static_key_slow_inc_cpuslocked(struct static_key *key)
jump_label_unlock();
return true;
}
+EXPORT_SYMBOL_GPL(static_key_slow_inc_cpuslocked);
bool static_key_slow_inc(struct static_key *key)
{
@@ -304,6 +305,7 @@ void static_key_slow_dec_cpuslocked(struct static_key *key)
STATIC_KEY_CHECK_USE(key);
__static_key_slow_dec_cpuslocked(key);
}
+EXPORT_SYMBOL_GPL(static_key_slow_dec_cpuslocked);
void __static_key_slow_dec_deferred(struct static_key *key,
struct delayed_work *work,
--
2.43.0
next prev parent reply other threads:[~2023-12-23 2:59 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-23 2:55 [PATCH RFC net-next 00/34] Christmas 3-serie XDP for idpf (+generic stuff) Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 01/34] idpf: reuse libie's definitions of parsed ptype structures Alexander Lobakin
2023-12-27 15:43 ` Willem de Bruijn
2024-01-08 16:04 ` Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 02/34] idpf: pack &idpf_queue way more efficiently Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 03/34] idpf: remove legacy Page Pool Ethtool stats Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 04/34] libie: support different types of buffers for Rx Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 05/34] idpf: convert header split mode to libie + napi_build_skb() Alexander Lobakin
2023-12-27 15:30 ` Willem de Bruijn
2024-01-08 16:17 ` Alexander Lobakin
2024-01-09 13:59 ` Willem de Bruijn
2024-01-11 13:09 ` Alexander Lobakin
2024-01-09 14:43 ` Eric Dumazet
2023-12-23 2:55 ` [PATCH RFC net-next 06/34] idpf: use libie Rx buffer management for payload buffer Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 07/34] libie: add Tx buffer completion helpers Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 08/34] idpf: convert to libie Tx buffer completion Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 09/34] bpf, xdp: constify some bpf_prog * function arguments Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 10/34] xdp: constify read-only arguments of some static inline helpers Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 11/34] xdp: allow attaching already registered memory model to xdp_rxq_info Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 12/34] xdp: add generic xdp_buff_add_frag() Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 13/34] xdp: add generic xdp_build_skb_from_buff() Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 14/34] xdp: get rid of xdp_frame::mem.id Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 15/34] page_pool: add inline helper to sync VA for device (for XDP_TX) Alexander Lobakin
2023-12-23 2:55 ` Alexander Lobakin [this message]
2023-12-23 2:55 ` [PATCH RFC net-next 17/34] libie: support native XDP and register memory model Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 18/34] libie: add a couple of XDP helpers Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 19/34] idpf: stop using macros for accessing queue descriptors Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 20/34] idpf: make complq cleaning dependent on scheduling mode Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 21/34] idpf: prepare structures to support xdp Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 22/34] idpf: implement XDP_SETUP_PROG in ndo_bpf for splitq Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 23/34] idpf: use generic functions to build xdp_buff and skb Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 24/34] idpf: add support for XDP on Rx Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 25/34] idpf: add support for .ndo_xdp_xmit() Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 26/34] xdp: add generic XSk xdp_buff -> skb conversion Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 27/34] idpf: add support for sw interrupt Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 28/34] idpf: add relative queue id member to idpf_queue Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 29/34] idpf: add vc functions to manage selected queues Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 30/34] idpf: move search rx and tx queues to header Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 31/34] idpf: add XSk pool initialization Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 32/34] idpf: implement Tx path for AF_XDP Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 33/34] idpf: implement Rx " Alexander Lobakin
2023-12-23 2:55 ` [PATCH RFC net-next 34/34] idpf: enable XSk features and ndo_xsk_wakeup Alexander Lobakin
2023-12-26 20:23 ` [PATCH RFC net-next 00/34] Christmas 3-serie XDP for idpf (+generic stuff) Willem de Bruijn
2024-01-08 16:01 ` Alexander Lobakin
2024-01-08 16:09 ` Willem de Bruijn
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