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/uvmexp.h | |
| parent | f09c45ba7cb505684038d40e812a897c865feb22 (diff) | |
Modify `uvmexp.swpgonly' atomically, required for uvm_fault() w/o KERNEL_LOCK()
ok kettenis@
Diffstat (limited to 'sys/uvm/uvmexp.h')
| -rw-r--r-- | sys/uvm/uvmexp.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/uvm/uvmexp.h b/sys/uvm/uvmexp.h index 0e3129e3513..90533813dff 100644 --- a/sys/uvm/uvmexp.h +++ b/sys/uvm/uvmexp.h @@ -1,4 +1,4 @@ -/* $OpenBSD: uvmexp.h,v 1.8 2020/12/28 14:01:23 mpi Exp $ */ +/* $OpenBSD: uvmexp.h,v 1.9 2021/03/04 09:00:03 mpi Exp $ */ #ifndef _UVM_UVMEXP_ #define _UVM_UVMEXP_ @@ -41,6 +41,7 @@ * other than the vm system. * * Locks used to protect struct members in this file: + * a atomic operations * I immutable after creation * K kernel lock * F uvm_lock_fpageq @@ -82,7 +83,7 @@ struct uvmexp { int nswapdev; /* number of configured swap devices in system */ int swpages; /* [K] number of PAGE_SIZE'ed swap pages */ int swpginuse; /* number of swap pages in use */ - int swpgonly; /* [K] number of swap pages in use, not also in RAM */ + int swpgonly; /* [a] number of swap pages in use, not also in RAM */ int nswget; /* number of swap pages moved from disk to RAM */ int nanon; /* XXX number total of anon's in system */ int unused05; /* formerly nanonneeded */ |