git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Chuck Lever <chuck.lever@oracle.com>
	Fri, 29 Apr 2022 14:06:21 +0000 (10:06 -0400)
committer	Chuck Lever <chuck.lever@oracle.com>
	Mon, 23 May 2022 15:06:29 +0000 (11:06 -0400)
commit	50aa4794251d606e9df541bf73b236b7f6ec9069
tree	63b9934813d5d24e8c90c65b396935abb8a722b2	tree \| snapshot
parent	3cb992cbbe0c9bc1e817a412618c086b084da9a5	commit \| diff

SUNRPC: Use RMW bitops in single-threaded hot paths

I noticed CPU pipeline stalls while using perf.

Once an svc thread is scheduled and executing an RPC, no other
processes will touch svc_rqst::rq_flags. Thus bus-locked atomics are
not needed outside the svc thread scheduler.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Linux Kernel Source Tree.

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fs/nfsd/nfs4proc.c		diff \| blob \| history
fs/nfsd/nfs4xdr.c		diff \| blob \| history
net/sunrpc/auth_gss/svcauth_gss.c		diff \| blob \| history
net/sunrpc/svc.c		diff \| blob \| history
net/sunrpc/svc_xprt.c		diff \| blob \| history
net/sunrpc/svcsock.c		diff \| blob \| history
net/sunrpc/xprtrdma/svc_rdma_transport.c		diff \| blob \| history