diff options
| author | Ted Unangst <tedu@cvs.openbsd.org> | 2006-05-07 20:12:42 +0000 |
|---|---|---|
| committer | Ted Unangst <tedu@cvs.openbsd.org> | 2006-05-07 20:12:42 +0000 |
| commit | 5b458e8d496bd0cdc94f0ec7a9ff9ae741d961ed (patch) | |
| tree | 6159b73e9e098b39bf803a6b9e74326ab3bc1345 /sys/kern | |
| parent | 4a02f1bb86ffaf58c243035d5c3117d4611db8eb (diff) | |
add a name to rwlock so that we can tell where procs are getting stuck
without breaking into ddb. doubles the size of rwlock [1], but moving
forward this really helps. ok/tested pedro fgsch millert krw
[1 - next person to add a field to this struct gets whipped with a wet noodle]
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_descrip.c | 4 | ||||
| -rw-r--r-- | sys/kern/kern_rwlock.c | 7 |
2 files changed, 6 insertions, 5 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index b4cadf9cbae..e41013a29b0 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_descrip.c,v 1.73 2006/01/06 18:28:33 jmc Exp $ */ +/* $OpenBSD: kern_descrip.c,v 1.74 2006/05/07 20:12:41 tedu Exp $ */ /* $NetBSD: kern_descrip.c,v 1.42 1996/03/30 22:24:38 christos Exp $ */ /* @@ -847,7 +847,7 @@ fdinit(struct proc *p) if (newfdp->fd_fd.fd_rdir) VREF(newfdp->fd_fd.fd_rdir); } - rw_init(&newfdp->fd_fd.fd_lock); + rw_init(&newfdp->fd_fd.fd_lock, "fdlock"); /* Create the file descriptor table. */ newfdp->fd_fd.fd_refcnt = 1; diff --git a/sys/kern/kern_rwlock.c b/sys/kern/kern_rwlock.c index 1a648aa831b..4c750a2f2f6 100644 --- a/sys/kern/kern_rwlock.c +++ b/sys/kern/kern_rwlock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_rwlock.c,v 1.6 2006/04/20 14:36:24 pedro Exp $ */ +/* $OpenBSD: kern_rwlock.c,v 1.7 2006/05/07 20:12:41 tedu Exp $ */ /* * Copyright (c) 2002, 2003 Artur Grabowski <art@openbsd.org> @@ -198,9 +198,10 @@ rw_exit_diag(struct rwlock *rwl, int owner) #endif void -rw_init(struct rwlock *rwl) +rw_init(struct rwlock *rwl, const char *name) { rwl->rwl_owner = 0; + rwl->rwl_name = name; } /* @@ -230,7 +231,7 @@ retry: rw_enter_diag(rwl, flags); - if ((error = tsleep(rwl, prio, "rwlock", 0)) != 0) + if ((error = tsleep(rwl, prio, rwl->rwl_name, 0)) != 0) return (error); if (flags & RW_SLEEPFAIL) return (EAGAIN); |