net: remove padding from struct socket on 64bit & increase objects/cache (2c693610) · Commits · 戴 / test

remove padding from struct socket reducing its size by 8 bytes. This allows more objects/cache in sock_inode_cache 12 objects/cache when cacheline size is 128 (generic x86_64) Signed-off-by:

Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by:

David S. Miller <davem@davemloft.net>

include/linux/net.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -106,23 +106,23 @@ enum sock_shutdown_cmd {
		/**
		* struct socket - general BSD socket
		* @state: socket state (%SS_CONNECTED, etc)
		* @type: socket type (%SOCK_STREAM, etc)
		* @flags: socket flags (%SOCK_ASYNC_NOSPACE, etc)
		* @ops: protocol specific socket operations
		* @fasync_list: Asynchronous wake up list
		* @file: File back pointer for gc
		* @sk: internal networking protocol agnostic socket representation
		* @wait: wait queue for several uses
		* @type: socket type (%SOCK_STREAM, etc)
		*/
		struct socket {
		socket_state state;
		short type;
		unsigned long flags;
		const struct proto_ops *ops;
		struct fasync_struct *fasync_list;
		struct file *file;
		struct sock *sk;
		wait_queue_head_t wait;
		short type;
		};

		struct vm_area_struct;

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