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| author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-25 09:21:21 +0000 |
|---|---|---|
| committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-25 09:21:21 +0000 |
| commit | 2469c867a164210ce96143517059f21db7f1fd17 (patch) | |
| tree | 9179427ac860211c445df663fd2b86267366bfba /sys/vm/vm_pageout.h | |
| parent | cb0aba89af15a48e2655e898a503946ac4cb42ae (diff) | |
| download | FreeBSD-src-2469c867a164210ce96143517059f21db7f1fd17.zip FreeBSD-src-2469c867a164210ce96143517059f21db7f1fd17.tar.gz | |
The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by: Rodney W. Grimes
Submitted by: John Dyson and David Greenman
Diffstat (limited to 'sys/vm/vm_pageout.h')
| -rw-r--r-- | sys/vm/vm_pageout.h | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/sys/vm/vm_pageout.h b/sys/vm/vm_pageout.h index a82a0ea..834aee5 100644 --- a/sys/vm/vm_pageout.h +++ b/sys/vm/vm_pageout.h @@ -72,7 +72,11 @@ extern int vm_pages_needed; /* should be some "event" structure */ simple_lock_data_t vm_pages_needed_lock; +extern int vm_pageout_pages_needed; +#define VM_PAGEOUT_ASYNC 0 +#define VM_PAGEOUT_SYNC 1 +#define VM_PAGEOUT_FORCE 2 /* * Exported routines. @@ -82,15 +86,27 @@ simple_lock_data_t vm_pages_needed_lock; * Signal pageout-daemon and wait for it. */ -#define VM_WAIT { \ - simple_lock(&vm_pages_needed_lock); \ - thread_wakeup((int)&vm_pages_needed); \ - thread_sleep((int)&cnt.v_free_count, \ - &vm_pages_needed_lock, FALSE); \ - } +#define VM_WAIT vm_wait() + +inline static void vm_wait() { + extern struct proc *curproc, *pageproc; + int s; + s = splhigh(); + if (curproc == pageproc) { + vm_pageout_pages_needed = 1; + tsleep((caddr_t) &vm_pageout_pages_needed, PSWP, "vmwait", 0); + vm_pageout_pages_needed = 0; + } else { + wakeup((caddr_t) &vm_pages_needed); + tsleep((caddr_t) &cnt.v_free_count, PVM, "vmwait", 0); + } + splx(s); +} + + #ifdef KERNEL void vm_pageout __P((void)); -void vm_pageout_scan __P((void)); +int vm_pageout_scan __P((void)); void vm_pageout_page __P((vm_page_t, vm_object_t)); void vm_pageout_cluster __P((vm_page_t, vm_object_t)); #endif |
