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When setting up a socket in socreate(), there's no need to lock the

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socket lock around knlist_init(), so don't.

Hard code the setting of the socket reference count to 1 rather than
using soref() to avoid asserting the socket lock, since we've not yet
exposed the socket to other threads.

This removes two mutex operations from each socket allocation.
This commit is contained in:
Robert Watson 2005-03-11 16:30:02 +00:00
parent 5fab68b19e
commit 2b37548a71
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=143422
1 changed files with 1 additions and 3 deletions
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4
sys/kern/uipc_socket.c
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@ -211,11 +211,9 @@ socreate(dom, aso, type, proto, cred, td)
#ifdef MAC
mac_create_socket(cred, so);
#endif
SOCK_LOCK(so);
knlist_init(&so->so_rcv.sb_sel.si_note, SOCKBUF_MTX(&so->so_rcv));
knlist_init(&so->so_snd.sb_sel.si_note, SOCKBUF_MTX(&so->so_snd));
soref(so);
SOCK_UNLOCK(so);
so->so_count = 1;
error = (*prp->pr_usrreqs->pru_attach)(so, proto, td);
if (error) {
ACCEPT_LOCK();