From: Olga Kornievskaia <kolga@xxxxxxxxxx> In this patch series, I propose to add ability to offline a transport so that it's no longer available for tasks with ability to either bring it back online (if this transport recovers) or it can be removed all together. When a transport is begin removed, all the moveable tasks that have been assigned to this transport but didn't complete will be retried on a different transport. Note, that if a transport has stuck, un-moveable tasks, it can't be removed. in v2 of this patch series: -- able to online an offlined transport -- for the getattr, to mark it moveable, use presense of session instead of the minorversion -- added things to the xprt_info displayed via sysfs: (1) whether or not this is a main transport, in hopes to prevent to offline/remove a main transport. (2) display source port of the TCP transport, as it makes it easier to make transports to the network trace. (2) display xprt's queuelen which keeps track of tasks that have been assigned to this xprt. Olga Kornievskaia (8): SUNRPC mark the first transport SUNRPC display xprt's main value in sysfs's xprt_info SUNRPC query transport's source port SUNRPC for TCP display xprt's source port in sysfs xprt_info SUNRPC: take a xprt offline using sysfs NFSv4.1 identify and mark RPC tasks that can move between transports sunrpc: display xprt's queuelen of assigned tasks via sysfs sunrpc: remove an offlined xprt using sysfs fs/nfs/nfs4proc.c | 38 +++++++++++-- fs/nfs/pagelist.c | 8 ++- fs/nfs/write.c | 6 +- include/linux/sunrpc/sched.h | 2 + include/linux/sunrpc/xprt.h | 3 + include/linux/sunrpc/xprtsock.h | 1 + net/sunrpc/clnt.c | 25 +++++++++ net/sunrpc/sysfs.c | 98 ++++++++++++++++++++++++++++++--- net/sunrpc/sysfs.h | 1 + net/sunrpc/xprtmultipath.c | 6 +- net/sunrpc/xprtsock.c | 7 +++ 11 files changed, 177 insertions(+), 18 deletions(-) -- 2.27.0
