diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2002-01-23 00:39:49 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2002-01-23 00:39:49 +0000 |
| commit | 428a9d0c41ac6e6a1e3b34fe87ab6ef38f3764cb (patch) | |
| tree | bca3c796baa50ba1a667d9fc1450766d842763b4 /sys/scsi | |
| parent | ad9498378fb50081ca58cbd745f9705b789f2da8 (diff) | |
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.
Diffstat (limited to 'sys/scsi')
| -rw-r--r-- | sys/scsi/scsi_base.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/scsi/scsi_base.c b/sys/scsi/scsi_base.c index 17d76b6c196..3c23a215da5 100644 --- a/sys/scsi/scsi_base.c +++ b/sys/scsi/scsi_base.c @@ -1,4 +1,4 @@ -/* $OpenBSD: scsi_base.c,v 1.31 2001/08/25 19:29:16 fgsch Exp $ */ +/* $OpenBSD: scsi_base.c,v 1.32 2002/01/23 00:39:48 art Exp $ */ /* $NetBSD: scsi_base.c,v 1.43 1997/04/02 02:29:36 mycroft Exp $ */ /* @@ -75,7 +75,7 @@ scsi_init() /* Initialize the scsi_xfer pool. */ pool_init(&scsi_xfer_pool, sizeof(struct scsi_xfer), 0, - 0, 0, "scxspl", 0, NULL, NULL, M_DEVBUF); + 0, 0, "scxspl", NULL); } /* |