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author | Chuck Lever <cel@citi.umich.edu> | 2005-08-11 20:25:23 (GMT) |
---|---|---|
committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-09-23 16:38:12 (GMT) |
commit | a246b0105bbd9a70a698f69baae2042996f2a0e9 (patch) | |
tree | 6c8831d8579a7fdc5201d3e9c20270cb1420eeda /net/sunrpc/xdr.c | |
parent | 094bb20b9fcab3a1652a77741caba6b78097d622 (diff) | |
download | linux-a246b0105bbd9a70a698f69baae2042996f2a0e9.tar.xz |
[PATCH] RPC: introduce client-side transport switch
Move the bulk of client-side socket-specific code into a separate source
file, net/sunrpc/xprtsock.c.
Test-plan:
Millions of fsx operations. Performance characterization such as "sio" or
"iozone". Destructive testing (unplugging the network temporarily, server
reboots). Connectathon with v2, v3, and v4.
Version: Thu, 11 Aug 2005 16:03:38 -0400
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/xdr.c')
-rw-r--r-- | net/sunrpc/xdr.c | 102 |
1 files changed, 1 insertions, 101 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 9cc12ae..32df433 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -6,15 +6,12 @@ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> */ +#include <linux/module.h> #include <linux/types.h> -#include <linux/socket.h> #include <linux/string.h> #include <linux/kernel.h> #include <linux/pagemap.h> #include <linux/errno.h> -#include <linux/in.h> -#include <linux/net.h> -#include <net/sock.h> #include <linux/sunrpc/xdr.h> #include <linux/sunrpc/msg_prot.h> @@ -177,103 +174,6 @@ xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset, } -int -xdr_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, - struct xdr_buf *xdr, unsigned int base, int msgflags) -{ - struct page **ppage = xdr->pages; - unsigned int len, pglen = xdr->page_len; - int err, ret = 0; - ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int); - - len = xdr->head[0].iov_len; - if (base < len || (addr != NULL && base == 0)) { - struct kvec iov = { - .iov_base = xdr->head[0].iov_base + base, - .iov_len = len - base, - }; - struct msghdr msg = { - .msg_name = addr, - .msg_namelen = addrlen, - .msg_flags = msgflags, - }; - if (xdr->len > len) - msg.msg_flags |= MSG_MORE; - - if (iov.iov_len != 0) - err = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len); - else - err = kernel_sendmsg(sock, &msg, NULL, 0, 0); - if (ret == 0) - ret = err; - else if (err > 0) - ret += err; - if (err != iov.iov_len) - goto out; - base = 0; - } else - base -= len; - - if (pglen == 0) - goto copy_tail; - if (base >= pglen) { - base -= pglen; - goto copy_tail; - } - if (base || xdr->page_base) { - pglen -= base; - base += xdr->page_base; - ppage += base >> PAGE_CACHE_SHIFT; - base &= ~PAGE_CACHE_MASK; - } - - sendpage = sock->ops->sendpage ? : sock_no_sendpage; - do { - int flags = msgflags; - - len = PAGE_CACHE_SIZE; - if (base) - len -= base; - if (pglen < len) - len = pglen; - - if (pglen != len || xdr->tail[0].iov_len != 0) - flags |= MSG_MORE; - - /* Hmm... We might be dealing with highmem pages */ - if (PageHighMem(*ppage)) - sendpage = sock_no_sendpage; - err = sendpage(sock, *ppage, base, len, flags); - if (ret == 0) - ret = err; - else if (err > 0) - ret += err; - if (err != len) - goto out; - base = 0; - ppage++; - } while ((pglen -= len) != 0); -copy_tail: - len = xdr->tail[0].iov_len; - if (base < len) { - struct kvec iov = { - .iov_base = xdr->tail[0].iov_base + base, - .iov_len = len - base, - }; - struct msghdr msg = { - .msg_flags = msgflags, - }; - err = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len); - if (ret == 0) - ret = err; - else if (err > 0) - ret += err; - } -out: - return ret; -} - - /* * Helper routines for doing 'memmove' like operations on a struct xdr_buf * |