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authorEric Dumazet <edumazet@google.com>2022-06-09 08:34:08 +0200
committerJakub Kicinski <kuba@kernel.org>2022-06-11 01:21:26 +0200
commit0defbb0af775ef037913786048d099bbe8b9a2c2 (patch)
treeb25787bc499129fc43cba5c3e8af7e83c3880b42 /include/net/tcp.h
parentnet: remove SK_MEM_QUANTUM and SK_MEM_QUANTUM_SHIFT (diff)
downloadlinux-0defbb0af775ef037913786048d099bbe8b9a2c2.tar.xz
linux-0defbb0af775ef037913786048d099bbe8b9a2c2.zip
net: add per_cpu_fw_alloc field to struct proto
Each protocol having a ->memory_allocated pointer gets a corresponding per-cpu reserve, that following patches will use. Instead of having reserved bytes per socket, we want to have per-cpu reserves. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1e99f5c61f84..4794cae4577e 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -253,6 +253,8 @@ extern long sysctl_tcp_mem[3];
#define TCP_RACK_NO_DUPTHRESH 0x4 /* Do not use DUPACK threshold in RACK */
extern atomic_long_t tcp_memory_allocated;
+DECLARE_PER_CPU(int, tcp_memory_per_cpu_fw_alloc);
+
extern struct percpu_counter tcp_sockets_allocated;
extern unsigned long tcp_memory_pressure;