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libceph: tcp_nodelay support

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TCP_NODELAY socket option set on connection sockets,
disables Nagle’s algorithm and improves latency characteristics.
tcp_nodelay(default)/notcp_nodelay option flags provided to
enable/disable setting the socket option.

Signed-off-by: Chaitanya Huilgol <chaitanya.huilgol@sandisk.com>
[idryomov@redhat.com: NO_TCP_NODELAY -> TCP_NODELAY, minor adjustments]
Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
This commit is contained in:
Chaitanya Huilgol 2015-01-23 16:41:25 +05:30 • committed by Ilya Dryomov
parent cf32bd9c86
commit ba988f87f5
4 changed files with 33 additions and 4 deletions
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3
include/linux/ceph/libceph.h
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@ -30,8 +30,9 @@
#define CEPH_OPT_MYIP (1<<2) /* specified my ip */
#define CEPH_OPT_NOCRC (1<<3) /* no data crc on writes */
#define CEPH_OPT_NOMSGAUTH (1<<4) /* not require cephx message signature */
#define CEPH_OPT_TCP_NODELAY (1<<5) /* TCP_NODELAY on TCP sockets */
#define CEPH_OPT_DEFAULT (0)
#define CEPH_OPT_DEFAULT (CEPH_OPT_TCP_NODELAY)
#define ceph_set_opt(client, opt) \
(client)->options->flags |= CEPH_OPT_##opt;