diff options
| author | Don Lewis <truckman@FreeBSD.org> | 2002-07-28 19:59:31 +0000 |
|---|---|---|
| committer | Don Lewis <truckman@FreeBSD.org> | 2002-07-28 19:59:31 +0000 |
| commit | 5c38b6dbce8b0e199cc285982440e9459ad4ffa8 (patch) | |
| tree | 6dda6f0898c9f15fca929e63e72b3882862e67e1 /sys/netncp | |
| parent | b44ba1a844ff3b351139591b8eeff6273e566a45 (diff) | |
| download | src-5c38b6dbce8b0e199cc285982440e9459ad4ffa8.tar.gz src-5c38b6dbce8b0e199cc285982440e9459ad4ffa8.zip | |
Wire the sysctl output buffer before grabbing any locks to prevent
SYSCTL_OUT() from blocking while locks are held. This should
only be done when it would be inconvenient to make a temporary copy of
the data and defer calling SYSCTL_OUT() until after the locks are
released.
Notes
Notes:
svn path=/head/; revision=100831
Diffstat (limited to 'sys/netncp')
| -rw-r--r-- | sys/netncp/ncp_conn.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/netncp/ncp_conn.c b/sys/netncp/ncp_conn.c index 85f416302105..14b8d7b2d5bc 100644 --- a/sys/netncp/ncp_conn.c +++ b/sys/netncp/ncp_conn.c @@ -633,6 +633,7 @@ ncp_sysctl_connstat(SYSCTL_HANDLER_ARGS) { /* struct ucred *cred = req->p->p_ucred;*/ error = 0; + sysctl_wire_old_buffer(req, 0); ncp_conn_locklist(LK_SHARED, req->p); error = SYSCTL_OUT(req, &ncp_conn_cnt, sizeof(ncp_conn_cnt)); SLIST_FOREACH(ncp, &conn_list, nc_next) { |