diff options
author | Ingo Molnar <mingo@kernel.org> | 2014-06-06 07:55:06 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2014-06-06 07:55:06 +0200 |
commit | ec00010972a0971b2c1da4fbe4e5c7d8ed1ecb05 (patch) | |
tree | c28975d7daf6d8a3aa23afe8f42837b71105b269 /net/ceph/messenger.c | |
parent | 8c6e549a447c51f4f8c0ba7f1e444469f75a354a (diff) | |
parent | e041e328c4b41e1db79bfe5ba9992c2ed771ad19 (diff) | |
download | op-kernel-dev-ec00010972a0971b2c1da4fbe4e5c7d8ed1ecb05.zip op-kernel-dev-ec00010972a0971b2c1da4fbe4e5c7d8ed1ecb05.tar.gz |
Merge branch 'perf/urgent' into perf/core, to resolve conflict and to prepare for new patches
Conflicts:
arch/x86/kernel/traps.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ceph/messenger.c')
-rw-r--r-- | net/ceph/messenger.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index dac7f9b..1948d59 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -557,7 +557,7 @@ static int ceph_tcp_sendmsg(struct socket *sock, struct kvec *iov, return r; } -static int ceph_tcp_sendpage(struct socket *sock, struct page *page, +static int __ceph_tcp_sendpage(struct socket *sock, struct page *page, int offset, size_t size, bool more) { int flags = MSG_DONTWAIT | MSG_NOSIGNAL | (more ? MSG_MORE : MSG_EOR); @@ -570,6 +570,24 @@ static int ceph_tcp_sendpage(struct socket *sock, struct page *page, return ret; } +static int ceph_tcp_sendpage(struct socket *sock, struct page *page, + int offset, size_t size, bool more) +{ + int ret; + struct kvec iov; + + /* sendpage cannot properly handle pages with page_count == 0, + * we need to fallback to sendmsg if that's the case */ + if (page_count(page) >= 1) + return __ceph_tcp_sendpage(sock, page, offset, size, more); + + iov.iov_base = kmap(page) + offset; + iov.iov_len = size; + ret = ceph_tcp_sendmsg(sock, &iov, 1, size, more); + kunmap(page); + + return ret; +} /* * Shutdown/close the socket for the given connection. |