diff options
| author | Alan Cox <alc@FreeBSD.org> | 2003-06-13 08:11:14 +0000 |
|---|---|---|
| committer | Alan Cox <alc@FreeBSD.org> | 2003-06-13 08:11:14 +0000 |
| commit | d7ae6bd2216895169fe76cea591864a0fbcb04b5 (patch) | |
| tree | 00ad28fa3ae5274f9fed34be35fbfb888aee5345 /sys/pci/agp_i810.c | |
| parent | 004bd28e408bc0fe10468514bcf2225c6a813185 (diff) | |
| download | src-d7ae6bd2216895169fe76cea591864a0fbcb04b5.tar.gz src-d7ae6bd2216895169fe76cea591864a0fbcb04b5.zip | |
Add vm object locking.
Notes
Notes:
svn path=/head/; revision=116288
Diffstat (limited to 'sys/pci/agp_i810.c')
| -rw-r--r-- | sys/pci/agp_i810.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/pci/agp_i810.c b/sys/pci/agp_i810.c index d8e4d05e936b..0f845d9a5932 100644 --- a/sys/pci/agp_i810.c +++ b/sys/pci/agp_i810.c @@ -584,8 +584,11 @@ agp_i810_alloc_memory(device_t dev, int type, vm_size_t size) * get its physical address. */ vm_page_t m; + + VM_OBJECT_LOCK(mem->am_obj); m = vm_page_grab(mem->am_obj, 0, VM_ALLOC_WIRED | VM_ALLOC_ZERO | VM_ALLOC_RETRY); + VM_OBJECT_UNLOCK(mem->am_obj); if ((m->flags & PG_ZERO) == 0) pmap_zero_page(m); vm_page_lock_queues(); @@ -616,7 +619,11 @@ agp_i810_free_memory(device_t dev, struct agp_memory *mem) /* * Unwire the page which we wired in alloc_memory. */ - vm_page_t m = vm_page_lookup(mem->am_obj, 0); + vm_page_t m; + + VM_OBJECT_LOCK(mem->am_obj); + m = vm_page_lookup(mem->am_obj, 0); + VM_OBJECT_UNLOCK(mem->am_obj); vm_page_lock_queues(); vm_page_unwire(m, 0); vm_page_unlock_queues(); |