tree 248ea7f3f5244b4f00acc8b1f36c57324b61ff31
parent 34f5b4662bf4b54f22b32ce76ce70eccd7ebc68a
author Trond Myklebust <Trond.Myklebust@netapp.com> 1200424632 -0500
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1201676770 -0500

NFS: Optimise away the sigmask code in aio/dio reads and writes

There are no interruptible waits for asynchronous RPC tasks, so we don't
need to wrap calls to rpc_run_task() with an
rpc_clnt_sigmask/rpc_clnt_unsigmask pair.

Instead we can wrap the wait_for_completion_interruptible() in
nfs_direct_wait(). This means that we completely optimise away sigmask
setting for the case of non-blocking aio/dio.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>