kernel/linux.git/include/linux/sunrpc/sched.h, branch linux-2.6.18.y

SUNRPC: eliminate rpc_call()

2006-03-20T18:44:23+00:00

Clean-up: replace rpc_call() helper with direct call to rpc_call_sync. This makes NFSv2 and NFSv3 synchronous calls more computationally efficient, and reduces stack consumption in functions that used to invoke rpc_call more than once. Test plan: Compile kernel with CONFIG_NFS enabled. Connectathon on NFS version 2, version 3, and version 4 mount points. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: introduce per-task RPC iostats

2006-03-20T18:44:17+00:00

Account for various things that occur while an RPC task is executed. Separate timers for RPC round trip and RPC execution time show how long RPC requests wait in queue before being sent. Eventually these will be accumulated at xprt_release time in one place where they can be viewed from userland. Test plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: track length of RPC wait queues

2006-03-20T18:44:15+00:00

RPC wait queue length will eventually be exported to userland via the RPC iostats interface. Test plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

SUNRPC: Run rpci->queue_timeout on the rpciod workqueue instead of generic

2006-03-20T18:44:08+00:00

Signed-off-by: Trond Myklebust

SUNRPC: switchable buffer allocation

2006-01-06T19:58:55+00:00

Add RPC client transport switch support for replacing buffer management on a per-transport basis. In the current IPv4 socket transport implementation, RPC buffers are allocated as needed for each RPC message that is sent. Some transport implementations may choose to use pre-allocated buffers for encoding, sending, receiving, and unmarshalling RPC messages, however. For transports capable of direct data placement, the buffers can be carved out of a pre-registered area of memory rather than from a slab cache. Test-plan: Millions of fsx operations. Performance characterization with "sio" and "iozone". Use oprofile and other tools to look for significant regression in CPU utilization. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust

NFSv4: stateful NFSv4 RPC call interface

2006-01-06T19:58:40+00:00

The NFSv4 model requires us to complete all RPC calls that might establish state on the server whether or not the user wants to interrupt it. We may also need to schedule new work (including new RPC calls) in order to cancel the new state. The asynchronous RPC model will allow us to ensure that RPC calls always complete, but in order to allow for "synchronous" RPC, we want to add the ability to wait for completion. The waits are, of course, interruptible. Signed-off-by: Trond Myklebust

SUNRPC: Further cleanups

2006-01-06T19:58:40+00:00

Signed-off-by: Trond Myklebust

RPC: Clean up RPC task structure

2006-01-06T19:58:39+00:00

Shrink the RPC task structure. Instead of storing separate pointers for task->tk_exit and task->tk_release, put them in a structure. Also pass the user data pointer as a parameter instead of passing it via task->tk_calldata. This enables us to nest callbacks. Signed-off-by: Trond Myklebust

SUNRPC: Yet more RPC cleanups

2006-01-06T19:58:39+00:00

Signed-off-by: Trond Myklebust

[PATCH] RPC: Shrink struct rpc_task by switching to wait_on_bit()

2005-06-22T20:07:07+00:00

Signed-off-by: Trond Myklebust