From 52f98f1a2ddd2bb561f2c7e3b19a81d816a63118 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 17 Oct 2019 09:49:45 -0400 Subject: NFS/pnfs: Separate NFSv3 DS and MDS traffic If a NFSv3 server is being used as both a DS and as a regular NFSv3 server, we may want to keep the IO traffic on a separate TCP connection, since it will typically have very different timeout characteristics. This patch therefore sets up a flag to separate the two modes of operation for the nfs_client. Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index a50dd432475b..69e80cef5a81 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -46,6 +46,7 @@ struct nfs_client { #define NFS_CS_NO_RETRANS_TIMEOUT 4 /* - Disable retransmit timeouts */ #define NFS_CS_TSM_POSSIBLE 5 /* - Maybe state migration */ #define NFS_CS_NOPING 6 /* - don't ping on connect */ +#define NFS_CS_DS 7 /* - Server is a DS */ struct sockaddr_storage cl_addr; /* server identifier */ size_t cl_addrlen; char * cl_hostname; /* hostname of server */ -- cgit v1.2.3