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Commit 4031ae6e authored by Alexander Duyck's avatar Alexander Duyck Committed by Jeff Kirsher
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skbuff: Move rxhash and vlan_tci to consolidate holes in sk_buff 



This change helps to reduce the overall size of the sk_buff by moving
rxhash and vlan_tci so that the u16 values and u8 bitfields can be better
combined to create only one hole instead of multiple.

Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Tested-by: default avatarStephen Ko <stephen.s.ko@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 8a0da21b

include/linux/skbuff.h

+5 −4
Original line number Diff line number Diff line
@@ -438,6 +438,11 @@ struct sk_buff { 
#endif



	int			skb_iif;



	__u32			rxhash;



	__u16			vlan_tci;



#ifdef CONFIG_NET_SCHED

	__u16			tc_index;	/* traffic control index */

#ifdef CONFIG_NET_CLS_ACT
@@ -445,8 +450,6 @@ struct sk_buff { 
#endif

#endif



	__u32			rxhash;



	__u16			queue_mapping;

	kmemcheck_bitfield_begin(flags2);

#ifdef CONFIG_IPV6_NDISC_NODETYPE
@@ -470,8 +473,6 @@ struct sk_buff { 
		__u32		dropcount;

	};



	__u16			vlan_tci;



	sk_buff_data_t		transport_header;

	sk_buff_data_t		network_header;

	sk_buff_data_t		mac_header;