vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops
Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D30168
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eb09408085
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@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/rwlock.h>
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#include <sys/user.h>
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#include <vm/vm.h>
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#include <vm/vm_object.h>
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@ -71,6 +72,7 @@ static boolean_t default_pager_haspage(vm_object_t, vm_pindex_t, int *,
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* object is converted to swap pager type.
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*/
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const struct pagerops defaultpagerops = {
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.pgo_kvme_type = KVME_TYPE_DEFAULT,
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.pgo_alloc = default_pager_alloc,
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.pgo_dealloc = default_pager_dealloc,
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.pgo_getpages = default_pager_getpages,
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@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/mman.h>
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#include <sys/rwlock.h>
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#include <sys/sx.h>
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#include <sys/user.h>
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#include <sys/vmmeter.h>
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#include <vm/vm.h>
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@ -75,6 +76,7 @@ static struct pagerlst dev_pager_object_list;
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static struct mtx dev_pager_mtx;
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const struct pagerops devicepagerops = {
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.pgo_kvme_type = KVME_TYPE_DEVICE,
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.pgo_init = dev_pager_init,
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.pgo_alloc = dev_pager_alloc,
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.pgo_dealloc = dev_pager_dealloc,
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@ -84,6 +86,7 @@ const struct pagerops devicepagerops = {
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};
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const struct pagerops mgtdevicepagerops = {
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.pgo_kvme_type = KVME_TYPE_MGTDEVICE,
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.pgo_alloc = dev_pager_alloc,
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.pgo_dealloc = dev_pager_dealloc,
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.pgo_getpages = dev_pager_getpages,
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@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/mman.h>
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#include <sys/rwlock.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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@ -299,6 +300,7 @@ phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
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}
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const struct pagerops physpagerops = {
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.pgo_kvme_type = KVME_TYPE_PHYS,
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.pgo_init = phys_pager_init,
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.pgo_alloc = phys_pager_alloc,
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.pgo_dealloc = phys_pager_dealloc,
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@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/mutex.h>
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#include <sys/rwlock.h>
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#include <sys/sglist.h>
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#include <sys/user.h>
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#include <sys/vmmeter.h>
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#include <vm/vm.h>
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@ -60,6 +61,7 @@ static boolean_t sg_pager_haspage(vm_object_t, vm_pindex_t, int *,
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int *);
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const struct pagerops sgpagerops = {
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.pgo_kvme_type = KVME_TYPE_SG,
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.pgo_alloc = sg_pager_alloc,
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.pgo_dealloc = sg_pager_dealloc,
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.pgo_getpages = sg_pager_getpages,
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@ -99,6 +99,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/sysproto.h>
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#include <sys/systm.h>
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#include <sys/sx.h>
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#include <sys/user.h>
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#include <sys/vmmeter.h>
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#include <sys/vnode.h>
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@ -442,6 +443,7 @@ static void swap_pager_freespace(vm_object_t object, vm_pindex_t start,
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vm_size_t size);
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const struct pagerops swappagerops = {
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.pgo_kvme_type = KVME_TYPE_SWAP,
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.pgo_init = swap_pager_init, /* early system initialization of pager */
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.pgo_alloc = swap_pager_alloc, /* allocate an OBJT_SWAP object */
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.pgo_dealloc = swap_pager_dealloc, /* deallocate an OBJT_SWAP object */
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@ -456,6 +458,7 @@ const struct pagerops swappagerops = {
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};
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const struct pagerops swaptmpfspagerops = {
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.pgo_kvme_type = KVME_TYPE_VNODE,
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.pgo_alloc = swap_tmpfs_pager_alloc,
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.pgo_dealloc = swap_pager_dealloc,
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.pgo_getpages = swap_pager_getpages,
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@ -2469,41 +2469,6 @@ vm_object_busy_wait(vm_object_t obj, const char *wmesg)
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(void)blockcount_sleep(&obj->busy, NULL, wmesg, PVM);
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}
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/*
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* Return the kvme type of the given object.
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* If vpp is not NULL, set it to the object's vm_object_vnode() or NULL.
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*/
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int
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vm_object_kvme_type(vm_object_t object, struct vnode **vpp)
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{
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VM_OBJECT_ASSERT_LOCKED(object);
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if (vpp != NULL)
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*vpp = vm_object_vnode(object);
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switch (object->type) {
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case OBJT_DEFAULT:
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return (KVME_TYPE_DEFAULT);
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case OBJT_VNODE:
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return (KVME_TYPE_VNODE);
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case OBJT_SWAP:
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return (KVME_TYPE_SWAP);
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case OBJT_SWAP_TMPFS:
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return (KVME_TYPE_VNODE);
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case OBJT_DEVICE:
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return (KVME_TYPE_DEVICE);
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case OBJT_PHYS:
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return (KVME_TYPE_PHYS);
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case OBJT_DEAD:
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return (KVME_TYPE_DEAD);
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case OBJT_SG:
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return (KVME_TYPE_SG);
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case OBJT_MGTDEVICE:
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return (KVME_TYPE_MGTDEVICE);
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default:
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return (KVME_TYPE_UNKNOWN);
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}
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}
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static int
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sysctl_vm_object_list(SYSCTL_HANDLER_ARGS)
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{
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@ -79,6 +79,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/ucred.h>
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#include <sys/malloc.h>
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#include <sys/rwlock.h>
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#include <sys/user.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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@ -155,6 +156,7 @@ dead_pager_getvp(vm_object_t object, struct vnode **vpp, bool *vp_heldp)
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}
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static const struct pagerops deadpagerops = {
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.pgo_kvme_type = KVME_TYPE_DEAD,
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.pgo_alloc = dead_pager_alloc,
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.pgo_dealloc = dead_pager_dealloc,
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.pgo_getpages = dead_pager_getpages,
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@ -530,3 +532,17 @@ vm_object_mightbedirty(vm_object_t object)
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return (false);
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return (method(object));
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}
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/*
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* Return the kvme type of the given object.
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* If vpp is not NULL, set it to the object's vm_object_vnode() or NULL.
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*/
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int
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vm_object_kvme_type(vm_object_t object, struct vnode **vpp)
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{
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VM_OBJECT_ASSERT_LOCKED(object);
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if (vpp != NULL)
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*vpp = vm_object_vnode(object);
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return (pagertab[object->type]->pgo_kvme_type);
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}
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@ -71,6 +71,7 @@ typedef void pgo_freespace_t(vm_object_t object, vm_pindex_t start,
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vm_size_t size);
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struct pagerops {
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int pgo_kvme_type;
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pgo_init_t *pgo_init; /* Initialize pager. */
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pgo_alloc_t *pgo_alloc; /* Allocate pager. */
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pgo_dealloc_t *pgo_dealloc; /* Disassociate. */
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@ -74,6 +74,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/rwlock.h>
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#include <sys/sf_buf.h>
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#include <sys/domainset.h>
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#include <sys/user.h>
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#include <machine/atomic.h>
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@ -108,6 +109,7 @@ static void vnode_pager_release_writecount(vm_object_t, vm_offset_t,
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static void vnode_pager_getvp(vm_object_t, struct vnode **, bool *);
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const struct pagerops vnodepagerops = {
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.pgo_kvme_type = KVME_TYPE_VNODE,
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.pgo_alloc = vnode_pager_alloc,
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.pgo_dealloc = vnode_pager_dealloc,
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.pgo_getpages = vnode_pager_getpages,
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