diff options
| author |   matthew <matthew@openbsd.org> | 2011-06-19 04:51:06 +0000 |
|---|---|---|
| committer | matthew <matthew@openbsd.org> | 2011-06-19 04:51:06 +0000 |
| commit | 44b22497d3a14d40ff952ca57d1f187b221cdfec (patch) | |
| tree | fd65f6d5029494aabc1e3e534ba9f5cd8d09a3d9 /sys/kern/subr_disk.c | |
| parent | Use disk_lock/disk_unlock directly and in the same way in these drivers, (diff) | |
| download | wireguard-openbsd-44b22497d3a14d40ff952ca57d1f187b221cdfec.tar.xz wireguard-openbsd-44b22497d3a14d40ff952ca57d1f187b221cdfec.zip | |
Add disk_lock_nointr() as a way to acquire the disk lock without being
interrupted by signals.
ok deraadt@
Diffstat (limited to 'sys/kern/subr_disk.c')
| -rw-r--r-- | sys/kern/subr_disk.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/kern/subr_disk.c b/sys/kern/subr_disk.c index 54d4d0e8189..f9f7c9e0a14 100644 --- a/sys/kern/subr_disk.c +++ b/sys/kern/subr_disk.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_disk.c,v 1.124 2011/06/19 04:11:48 matthew Exp $ */ +/* $OpenBSD: subr_disk.c,v 1.125 2011/06/19 04:51:06 matthew Exp $ */ /* $NetBSD: subr_disk.c,v 1.17 1996/03/16 23:17:08 christos Exp $ */ /* @@ -961,6 +961,12 @@ disk_lock(struct disk *dk) } void +disk_lock_nointr(struct disk *dk) +{ + rw_enter_write(&dk->dk_lock); +} + +void disk_unlock(struct disk *dk) { rw_exit(&dk->dk_lock); |