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netlink-socket: Reorder elements in nl_dump structure.

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By reordering the elements in nl_dump structure, pad bytes can be
reduced there by saving a cache line.

Before: structure size:72, holes:1, sum padbytes:4, cachelines:2
After: structure size:64, holes:0, sum padbytes:0, cachelines:1

Signed-off-by: Bhanuprakash Bodireddy <bhanuprakash.bodireddy@intel.com>
Co-authored-by: Antonio Fischetti <antonio.fischetti@intel.com>
Signed-off-by: Antonio Fischetti <antonio.fischetti@intel.com>
Acked-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Daniele Di Proietto <diproiettod@vmware.com>
This commit is contained in:
Bhanuprakash Bodireddy
2016-10-14 15:37:14 +01:00
committed by Daniele Di Proietto
parent 96d96917e9
commit 0a0b5a7282
1 changed files with 3 additions and 3 deletions
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6
lib/netlink-socket.h
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@@ -260,12 +260,12 @@ struct nl_dump {
/* These members are immutable during the lifetime of the nl_dump. */
struct nl_sock *sock; /* Socket being dumped. */
uint32_t nl_seq; /* Expected nlmsg_seq for replies. */
/* 'mutex' protects 'status' and serializes access to 'sock'. */
struct ovs_mutex mutex; /* Protects 'status', synchronizes recv(). */
int status OVS_GUARDED; /* 0: dump in progress,
* positive errno: dump completed with error,
* EOF: dump completed successfully. */
/* 'mutex' protects 'status' and serializes access to 'sock'. */
struct ovs_mutex mutex; /* Protects 'status', synchronizes recv(). */
};
void nl_dump_start(struct nl_dump *, int protocol,