diff options
| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2021-03-04 09:00:04 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2021-03-04 09:00:04 +0000 |
| commit | 37b9299798a2191b795af5df5e914fc9f722cd55 (patch) | |
| tree | 3dc9d8667acfde0eee75049207c5388bd9fd9934 /sys/uvm/uvm_anon.c | |
| parent | f09c45ba7cb505684038d40e812a897c865feb22 (diff) | |
Modify `uvmexp.swpgonly' atomically, required for uvm_fault() w/o KERNEL_LOCK()
ok kettenis@
Diffstat (limited to 'sys/uvm/uvm_anon.c')
| -rw-r--r-- | sys/uvm/uvm_anon.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/uvm/uvm_anon.c b/sys/uvm/uvm_anon.c index b64321410da..2ae8dacc482 100644 --- a/sys/uvm/uvm_anon.c +++ b/sys/uvm/uvm_anon.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_anon.c,v 1.51 2021/01/19 13:21:36 mpi Exp $ */ +/* $OpenBSD: uvm_anon.c,v 1.52 2021/03/04 09:00:03 mpi Exp $ */ /* $NetBSD: uvm_anon.c,v 1.10 2000/11/25 06:27:59 chs Exp $ */ /* @@ -120,9 +120,9 @@ uvm_anfree_list(struct vm_anon *anon, struct pglist *pgl) } } else { if (anon->an_swslot != 0) { - /* this page is no longer only in swap. */ + /* This page is no longer only in swap. */ KASSERT(uvmexp.swpgonly > 0); - uvmexp.swpgonly--; + atomic_dec_int(&uvmexp.swpgonly); } } anon->an_lock = NULL; |