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| author | jeff <jeff@FreeBSD.org> | 2002-03-27 09:23:41 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2002-03-27 09:23:41 +0000 |
| commit | dff418f166b9e0d1e38094ab3bb7b6a6812ec6bb (patch) | |
| tree | 881b84f9e9297329d00cba858d3818a9c74d2de5 /sys/kern/kern_fork.c | |
| parent | 7fa55182e276dd9bbdaa9c61a231e896a5335804 (diff) | |
| download | FreeBSD-src-dff418f166b9e0d1e38094ab3bb7b6a6812ec6bb.zip FreeBSD-src-dff418f166b9e0d1e38094ab3bb7b6a6812ec6bb.tar.gz | |
Add a new mtx_init option "MTX_DUPOK" which allows duplicate acquires of locks
with this flag. Remove the dup_list and dup_ok code from subr_witness. Now
we just check for the flag instead of doing string compares.
Also, switch the process lock, process group lock, and uma per cpu locks over
to this interface. The original mechanism did not work well for uma because
per cpu lock names are unique to each zone.
Approved by: jhb
Diffstat (limited to 'sys/kern/kern_fork.c')
| -rw-r--r-- | sys/kern/kern_fork.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c index 723fd62..db4a459 100644 --- a/sys/kern/kern_fork.c +++ b/sys/kern/kern_fork.c @@ -463,7 +463,7 @@ again: */ proc_linkup(p2, kg2, ke2, td2); - mtx_init(&p2->p_mtx, "process lock", MTX_DEF); + mtx_init(&p2->p_mtx, "process lock", MTX_DEF|MTX_DUPOK); PROC_LOCK(p2); /* note.. XXXKSE no pcb or u-area yet */ |
