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dlm for 4.18

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These three commits fix and clean up the flags dlm was
 using on its SCTP sockets.  The result improves the
 performance and fixes some bad connection delays.
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Merge tag 'dlm-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "These three commits fix and clean up the flags dlm was using on its
  SCTP sockets. This improves performance and fixes some bad connection
  delays"

* tag 'dlm-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: remove O_NONBLOCK flag in sctp_connect_to_sock
  dlm: make sctp_connect_to_sock() return in specified time
  dlm: fix a clerical error when set SCTP_NODELAY
This commit is contained in:
Linus Torvalds 2018-06-04 14:34:06 -07:00
commit 8a4631144b
1 changed files with 14 additions and 2 deletions
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16
fs/dlm/lowcomms.c
View File

@ -1037,6 +1037,7 @@ static void sctp_connect_to_sock(struct connection *con)
int result;
int addr_len;
struct socket *sock;
struct timeval tv = { .tv_sec = 5, .tv_usec = 0 };
if (con->nodeid == 0) {
log_print("attempt to connect sock 0 foiled");
@ -1080,11 +1081,22 @@ static void sctp_connect_to_sock(struct connection *con)
log_print("connecting to %d", con->nodeid);
/* Turn off Nagle's algorithm */
kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&one,
kernel_setsockopt(sock, SOL_SCTP, SCTP_NODELAY, (char *)&one,
sizeof(one));
/*
* Make sock->ops->connect() function return in specified time,
* since O_NONBLOCK argument in connect() function does not work here,
* then, we should restore the default value of this attribute.
*/
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
sizeof(tv));
result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
O_NONBLOCK);
0);
memset(&tv, 0, sizeof(tv));
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv,
sizeof(tv));
if (result == -EINPROGRESS)
result = 0;
if (result == 0)