diff options
Diffstat (limited to 'sys/uvm')
| -rw-r--r-- | sys/uvm/uvm.h | 5 | ||||
| -rw-r--r-- | sys/uvm/uvm_page.c | 4 | ||||
| -rw-r--r-- | sys/uvm/uvm_page.h | 6 | ||||
| -rw-r--r-- | sys/uvm/uvm_pdaemon.c | 16 | ||||
| -rw-r--r-- | sys/uvm/uvm_vnode.c | 7 |
5 files changed, 17 insertions, 21 deletions
diff --git a/sys/uvm/uvm.h b/sys/uvm/uvm.h index ebccdcc2219..22e9323d15d 100644 --- a/sys/uvm/uvm.h +++ b/sys/uvm/uvm.h @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm.h,v 1.28 2009/04/06 12:02:52 oga Exp $ */ +/* $OpenBSD: uvm.h,v 1.29 2009/04/13 22:17:54 oga Exp $ */ /* $NetBSD: uvm.h,v 1.24 2000/11/27 08:40:02 chs Exp $ */ /* @@ -80,7 +80,8 @@ struct uvm { struct pglist page_active; /* allocated pages, in use */ struct pglist page_inactive_swp;/* pages inactive (reclaim or free) */ struct pglist page_inactive_obj;/* pages inactive (reclaim or free) */ - simple_lock_data_t pageqlock; /* lock for active/inactive page q */ + /* Lock order: object lock, pageqlock, then fpageqlock. */ + struct mutex pageqlock; /* lock for active/inactive page q */ struct mutex fpageqlock; /* lock for free page q */ boolean_t page_init_done; /* TRUE if uvm_page_init() finished */ boolean_t page_idle_zero; /* TRUE if we should try to zero diff --git a/sys/uvm/uvm_page.c b/sys/uvm/uvm_page.c index f635cc2a98b..3b2ea4c3ba4 100644 --- a/sys/uvm/uvm_page.c +++ b/sys/uvm/uvm_page.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_page.c,v 1.73 2009/04/06 17:03:51 oga Exp $ */ +/* $OpenBSD: uvm_page.c,v 1.74 2009/04/13 22:17:54 oga Exp $ */ /* $NetBSD: uvm_page.c,v 1.44 2000/11/27 08:40:04 chs Exp $ */ /* @@ -233,7 +233,7 @@ uvm_page_init(vaddr_t *kvm_startp, vaddr_t *kvm_endp) TAILQ_INIT(&uvm.page_active); TAILQ_INIT(&uvm.page_inactive_swp); TAILQ_INIT(&uvm.page_inactive_obj); - simple_lock_init(&uvm.pageqlock); + mtx_init(&uvm.pageqlock, IPL_NONE); mtx_init(&uvm.fpageqlock, IPL_VM); /* diff --git a/sys/uvm/uvm_page.h b/sys/uvm/uvm_page.h index 646b24b2043..b06f464d7ce 100644 --- a/sys/uvm/uvm_page.h +++ b/sys/uvm/uvm_page.h @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_page.h,v 1.30 2009/04/06 17:03:51 oga Exp $ */ +/* $OpenBSD: uvm_page.h,v 1.31 2009/04/13 22:17:54 oga Exp $ */ /* $NetBSD: uvm_page.h,v 1.19 2000/12/28 08:24:55 chs Exp $ */ /* @@ -304,8 +304,8 @@ int vm_physseg_find(paddr_t, int *); * macros */ -#define uvm_lock_pageq() simple_lock(&uvm.pageqlock) -#define uvm_unlock_pageq() simple_unlock(&uvm.pageqlock) +#define uvm_lock_pageq() mtx_enter(&uvm.pageqlock) +#define uvm_unlock_pageq() mtx_leave(&uvm.pageqlock) #define uvm_lock_fpageq() mtx_enter(&uvm.fpageqlock); #define uvm_unlock_fpageq() mtx_leave(&uvm.fpageqlock); diff --git a/sys/uvm/uvm_pdaemon.c b/sys/uvm/uvm_pdaemon.c index e15a24b95f2..bcfde9be6df 100644 --- a/sys/uvm/uvm_pdaemon.c +++ b/sys/uvm/uvm_pdaemon.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_pdaemon.c,v 1.38 2009/04/06 12:02:52 oga Exp $ */ +/* $OpenBSD: uvm_pdaemon.c,v 1.39 2009/04/13 22:17:54 oga Exp $ */ /* $NetBSD: uvm_pdaemon.c,v 1.23 2000/08/20 10:24:14 bjh21 Exp $ */ /* @@ -860,13 +860,6 @@ uvmpd_scan_inactive(struct pglist *pglst) &nextpg)) /* uobj died after release */ uobj = NULL; - - /* - * lock page queues here so that they're - * always locked at the end of the loop. - */ - - uvm_lock_pageq(); } } else { /* page was not released during I/O */ uvm_lock_pageq(); @@ -900,6 +893,9 @@ uvmpd_scan_inactive(struct pglist *pglst) else if (uobj) simple_unlock(&uobj->vmobjlock); + if (nextpg && (nextpg->pg_flags & PQ_INACTIVE) == 0) { + nextpg = TAILQ_FIRST(pglst); /* reload! */ + } } else { /* @@ -916,10 +912,6 @@ uvmpd_scan_inactive(struct pglist *pglst) uvm_lock_pageq(); } - - if (nextpg && (nextpg->pg_flags & PQ_INACTIVE) == 0) { - nextpg = TAILQ_FIRST(pglst); /* reload! */ - } } return (retval); } diff --git a/sys/uvm/uvm_vnode.c b/sys/uvm/uvm_vnode.c index 138fb9dab22..1e06956e93e 100644 --- a/sys/uvm/uvm_vnode.c +++ b/sys/uvm/uvm_vnode.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_vnode.c,v 1.54 2009/04/05 18:11:03 oga Exp $ */ +/* $OpenBSD: uvm_vnode.c,v 1.55 2009/04/13 22:17:54 oga Exp $ */ /* $NetBSD: uvm_vnode.c,v 1.36 2000/11/24 20:34:01 chs Exp $ */ /* @@ -1127,7 +1127,10 @@ ReTry: UVM_PAGE_OWN(ptmp, NULL); if (ptmp->pg_flags & PG_RELEASED) { - /* pgo_releasepg wants this */ + /* + * pgo_releasepg needs to grab the + * pageq lock itself. + */ uvm_unlock_pageq(); if (!uvn_releasepg(ptmp, NULL)) return (TRUE); |