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| author | Chaitanya Huilgol <chaitanya.huilgol@gmail.com> | 2015-01-23 16:41:25 +0530 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2015-02-19 13:31:40 +0300 |
| commit | ba988f87f532cd2b8c4740aa8ec49056521ae833 (patch) | |
| tree | 14d535124a9146d02fa0a7e2f76d8778b0bce662 /include | |
| parent | cf32bd9c86b6917d8446c00ea0081dde6e716a82 (diff) | |
| download | linux-ba988f87f532cd2b8c4740aa8ec49056521ae833.tar.bz2 | |
libceph: tcp_nodelay support
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ceph/libceph.h | 3 | ||||
| -rw-r--r-- | include/linux/ceph/messenger.h | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 8b11a79ca1cb..16fff9608848 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -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; diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index d9d396c16503..e15499422fdc 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -57,6 +57,7 @@ struct ceph_messenger { atomic_t stopping; bool nocrc; + bool tcp_nodelay; /* * the global_seq counts connections i (attempt to) initiate @@ -264,7 +265,8 @@ extern void ceph_messenger_init(struct ceph_messenger *msgr, struct ceph_entity_addr *myaddr, u64 supported_features, u64 required_features, - bool nocrc); + bool nocrc, + bool tcp_nodelay); extern void ceph_con_init(struct ceph_connection *con, void *private, const struct ceph_connection_operations *ops, |