From 428a9d0c41ac6e6a1e3b34fe87ab6ef38f3764cb Mon Sep 17 00:00:00 2001 From: Artur Grabowski Date: Wed, 23 Jan 2002 00:39:49 +0000 Subject: Pool deals fairly well with physical memory shortage, but it doesn't deal well (not at all) with shortages of the vm_map where the pages are mapped (usually kmem_map). Try to deal with it: - group all information the backend allocator for a pool in a separate struct. The pool will only have a pointer to that struct. - change the pool_init API to reflect that. - link all pools allocating from the same allocator on a linked list. - Since an allocator is responsible to wait for physical memory it will only fail (waitok) when it runs out of its backing vm_map, carefully drain pools using the same allocator so that va space is freed. (see comments in code for caveats and details). - change pool_reclaim to return if it actually succeeded to free some memory, use that information to make draining easier and more efficient. - get rid of PR_URGENT, noone uses it. --- sys/kern/kern_proc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'sys/kern/kern_proc.c') diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c index e8fdc6b4084..3725838dfa0 100644 --- a/sys/kern/kern_proc.c +++ b/sys/kern/kern_proc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_proc.c,v 1.9 2002/01/16 20:50:17 miod Exp $ */ +/* $OpenBSD: kern_proc.c,v 1.10 2002/01/23 00:39:47 art Exp $ */ /* $NetBSD: kern_proc.c,v 1.14 1996/02/09 18:59:41 christos Exp $ */ /* @@ -110,7 +110,7 @@ procinit() uihashtbl = hashinit(maxproc / 16, M_PROC, M_WAITOK, &uihash); pool_init(&proc_pool, sizeof(struct proc), 0, 0, 0, "procpl", - 0, pool_page_alloc_nointr, pool_page_free_nointr, M_PROC); + &pool_allocator_nointr); } /* -- cgit v1.2.3