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| author | jasone <jasone@FreeBSD.org> | 2000-09-07 01:33:02 +0000 |
|---|---|---|
| committer | jasone <jasone@FreeBSD.org> | 2000-09-07 01:33:02 +0000 |
| commit | 769e0f974d8929599ba599ac496510fffc90ff34 (patch) | |
| tree | 9387522900085835de81e7830e570ef3f6b3ea80 /sys/kern/vfs_subr.c | |
| parent | acf1927de02afda4855ec278b1128fd9446405ea (diff) | |
| download | FreeBSD-src-769e0f974d8929599ba599ac496510fffc90ff34.zip FreeBSD-src-769e0f974d8929599ba599ac496510fffc90ff34.tar.gz | |
Major update to the way synchronization is done in the kernel. Highlights
include:
* Mutual exclusion is used instead of spl*(). See mutex(9). (Note: The
alpha port is still in transition and currently uses both.)
* Per-CPU idle processes.
* Interrupts are run in their own separate kernel threads and can be
preempted (i386 only).
Partially contributed by: BSDi (BSD/OS)
Submissions by (at least): cp, dfr, dillon, grog, jake, jhb, sheldonh
Diffstat (limited to 'sys/kern/vfs_subr.c')
| -rw-r--r-- | sys/kern/vfs_subr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 3e4b17f..52ad0ef 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -56,6 +56,7 @@ #include <sys/fcntl.h> #include <sys/kernel.h> #include <sys/kthread.h> +#include <sys/ktr.h> #include <sys/malloc.h> #include <sys/mount.h> #include <sys/namei.h> @@ -68,6 +69,7 @@ #include <sys/vnode.h> #include <machine/limits.h> +#include <machine/mutex.h> #include <vm/vm.h> #include <vm/vm_object.h> @@ -960,6 +962,8 @@ sched_sync(void) int s; struct proc *p = updateproc; + mtx_enter(&Giant, MTX_DEF); + EVENTHANDLER_REGISTER(shutdown_pre_sync, shutdown_kproc, p, SHUTDOWN_PRI_LAST); |
