Git Repo - linux.git/commit

author	Chuck Lever <[email protected]>
	Wed, 13 Jan 2021 18:57:18 +0000 (13:57 -0500)
committer	Chuck Lever <[email protected]>
	Mon, 22 Mar 2021 17:22:13 +0000 (13:22 -0400)
commit	2a1e4f21d84184f7ff5768ee3d3d0c30b1135867
tree	c87db194a3c60d96538d11b25971243213c955d6	tree \| snapshot
parent	e844d307d46cfa7e09cdb671941bfd5f1be86773	commit \| diff

svcrdma: Normalize Send page handling

Currently svc_rdma_sendto() migrates xdr_buf pages into a separate
page list and NULLs out a bunch of entries in rq_pages while the
pages are under I/O. The Send completion handler then frees those
pages later.

Instead, let's wait for the Send completion, then handle page
releasing in the nfsd thread. I'd like to avoid the cost of 250+
put_page() calls in the Send completion handler, which is single-
threaded.

Signed-off-by: Chuck Lever <[email protected]>

include/linux/sunrpc/svc_rdma.h		diff \| blob \| blame \| history
net/sunrpc/xprtrdma/svc_rdma_backchannel.c		diff \| blob \| blame \| history
net/sunrpc/xprtrdma/svc_rdma_sendto.c		diff \| blob \| blame \| history