git: 00a3fe968b84 - main - vm_object_kvme_type(): reimplement by embedding kvme_type into pagerops
Konstantin Belousov
kib at FreeBSD.org
Thu May 13 17:14:13 UTC 2021
The branch main has been updated by kib:
URL: https://cgit.FreeBSD.org/src/commit/?id=00a3fe968b840ee197c32dfe4107dab730bd9915
commit 00a3fe968b840ee197c32dfe4107dab730bd9915
Author: Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-05-07 17:46:51 +0000
Commit: Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-05-13 17:10:35 +0000
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
---
sys/vm/default_pager.c | 2 ++
sys/vm/device_pager.c | 3 +++
sys/vm/phys_pager.c | 2 ++
sys/vm/sg_pager.c | 2 ++
sys/vm/swap_pager.c | 3 +++
sys/vm/vm_object.c | 35 -----------------------------------
sys/vm/vm_pager.c | 16 ++++++++++++++++
sys/vm/vm_pager.h | 1 +
sys/vm/vnode_pager.c | 2 ++
9 files changed, 31 insertions(+), 35 deletions(-)
diff --git a/sys/vm/default_pager.c b/sys/vm/default_pager.c
index 758012692a48..d07a84f8c98e 100644
--- a/sys/vm/default_pager.c
+++ b/sys/vm/default_pager.c
@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
#include <sys/proc.h>
#include <sys/resourcevar.h>
#include <sys/rwlock.h>
+#include <sys/user.h>
#include <vm/vm.h>
#include <vm/vm_object.h>
@@ -71,6 +72,7 @@ static boolean_t default_pager_haspage(vm_object_t, vm_pindex_t, int *,
* object is converted to swap pager type.
*/
const struct pagerops defaultpagerops = {
+ .pgo_kvme_type = KVME_TYPE_DEFAULT,
.pgo_alloc = default_pager_alloc,
.pgo_dealloc = default_pager_dealloc,
.pgo_getpages = default_pager_getpages,
diff --git a/sys/vm/device_pager.c b/sys/vm/device_pager.c
index 25affb114a47..567f8fe55817 100644
--- a/sys/vm/device_pager.c
+++ b/sys/vm/device_pager.c
@@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mman.h>
#include <sys/rwlock.h>
#include <sys/sx.h>
+#include <sys/user.h>
#include <sys/vmmeter.h>
#include <vm/vm.h>
@@ -75,6 +76,7 @@ static struct pagerlst dev_pager_object_list;
static struct mtx dev_pager_mtx;
const struct pagerops devicepagerops = {
+ .pgo_kvme_type = KVME_TYPE_DEVICE,
.pgo_init = dev_pager_init,
.pgo_alloc = dev_pager_alloc,
.pgo_dealloc = dev_pager_dealloc,
@@ -84,6 +86,7 @@ const struct pagerops devicepagerops = {
};
const struct pagerops mgtdevicepagerops = {
+ .pgo_kvme_type = KVME_TYPE_MGTDEVICE,
.pgo_alloc = dev_pager_alloc,
.pgo_dealloc = dev_pager_dealloc,
.pgo_getpages = dev_pager_getpages,
diff --git a/sys/vm/phys_pager.c b/sys/vm/phys_pager.c
index af7b10701b16..6d7c5a4a7291 100644
--- a/sys/vm/phys_pager.c
+++ b/sys/vm/phys_pager.c
@@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mman.h>
#include <sys/rwlock.h>
#include <sys/sysctl.h>
+#include <sys/user.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
@@ -299,6 +300,7 @@ phys_pager_haspage(vm_object_t object, vm_pindex_t pindex, int *before,
}
const struct pagerops physpagerops = {
+ .pgo_kvme_type = KVME_TYPE_PHYS,
.pgo_init = phys_pager_init,
.pgo_alloc = phys_pager_alloc,
.pgo_dealloc = phys_pager_dealloc,
diff --git a/sys/vm/sg_pager.c b/sys/vm/sg_pager.c
index 9b3e60bc170a..d7af2aed935a 100644
--- a/sys/vm/sg_pager.c
+++ b/sys/vm/sg_pager.c
@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mutex.h>
#include <sys/rwlock.h>
#include <sys/sglist.h>
+#include <sys/user.h>
#include <sys/vmmeter.h>
#include <vm/vm.h>
@@ -60,6 +61,7 @@ static boolean_t sg_pager_haspage(vm_object_t, vm_pindex_t, int *,
int *);
const struct pagerops sgpagerops = {
+ .pgo_kvme_type = KVME_TYPE_SG,
.pgo_alloc = sg_pager_alloc,
.pgo_dealloc = sg_pager_dealloc,
.pgo_getpages = sg_pager_getpages,
diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
index 57c953542a88..37db4cbac857 100644
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -99,6 +99,7 @@ __FBSDID("$FreeBSD$");
#include <sys/sysproto.h>
#include <sys/systm.h>
#include <sys/sx.h>
+#include <sys/user.h>
#include <sys/vmmeter.h>
#include <sys/vnode.h>
@@ -442,6 +443,7 @@ static void swap_pager_freespace(vm_object_t object, vm_pindex_t start,
vm_size_t size);
const struct pagerops swappagerops = {
+ .pgo_kvme_type = KVME_TYPE_SWAP,
.pgo_init = swap_pager_init, /* early system initialization of pager */
.pgo_alloc = swap_pager_alloc, /* allocate an OBJT_SWAP object */
.pgo_dealloc = swap_pager_dealloc, /* deallocate an OBJT_SWAP object */
@@ -456,6 +458,7 @@ const struct pagerops swappagerops = {
};
const struct pagerops swaptmpfspagerops = {
+ .pgo_kvme_type = KVME_TYPE_VNODE,
.pgo_alloc = swap_tmpfs_pager_alloc,
.pgo_dealloc = swap_pager_dealloc,
.pgo_getpages = swap_pager_getpages,
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c
index 1c4e879d82ea..735ab603a09b 100644
--- a/sys/vm/vm_object.c
+++ b/sys/vm/vm_object.c
@@ -2469,41 +2469,6 @@ vm_object_busy_wait(vm_object_t obj, const char *wmesg)
(void)blockcount_sleep(&obj->busy, NULL, wmesg, PVM);
}
-/*
- * Return the kvme type of the given object.
- * If vpp is not NULL, set it to the object's vm_object_vnode() or NULL.
- */
-int
-vm_object_kvme_type(vm_object_t object, struct vnode **vpp)
-{
-
- VM_OBJECT_ASSERT_LOCKED(object);
- if (vpp != NULL)
- *vpp = vm_object_vnode(object);
- switch (object->type) {
- case OBJT_DEFAULT:
- return (KVME_TYPE_DEFAULT);
- case OBJT_VNODE:
- return (KVME_TYPE_VNODE);
- case OBJT_SWAP:
- return (KVME_TYPE_SWAP);
- case OBJT_SWAP_TMPFS:
- return (KVME_TYPE_VNODE);
- case OBJT_DEVICE:
- return (KVME_TYPE_DEVICE);
- case OBJT_PHYS:
- return (KVME_TYPE_PHYS);
- case OBJT_DEAD:
- return (KVME_TYPE_DEAD);
- case OBJT_SG:
- return (KVME_TYPE_SG);
- case OBJT_MGTDEVICE:
- return (KVME_TYPE_MGTDEVICE);
- default:
- return (KVME_TYPE_UNKNOWN);
- }
-}
-
static int
sysctl_vm_object_list(SYSCTL_HANDLER_ARGS)
{
diff --git a/sys/vm/vm_pager.c b/sys/vm/vm_pager.c
index 240847903f62..9476058a75bf 100644
--- a/sys/vm/vm_pager.c
+++ b/sys/vm/vm_pager.c
@@ -79,6 +79,7 @@ __FBSDID("$FreeBSD$");
#include <sys/ucred.h>
#include <sys/malloc.h>
#include <sys/rwlock.h>
+#include <sys/user.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
@@ -155,6 +156,7 @@ dead_pager_getvp(vm_object_t object, struct vnode **vpp, bool *vp_heldp)
}
static const struct pagerops deadpagerops = {
+ .pgo_kvme_type = KVME_TYPE_DEAD,
.pgo_alloc = dead_pager_alloc,
.pgo_dealloc = dead_pager_dealloc,
.pgo_getpages = dead_pager_getpages,
@@ -530,3 +532,17 @@ vm_object_mightbedirty(vm_object_t object)
return (false);
return (method(object));
}
+
+/*
+ * Return the kvme type of the given object.
+ * If vpp is not NULL, set it to the object's vm_object_vnode() or NULL.
+ */
+int
+vm_object_kvme_type(vm_object_t object, struct vnode **vpp)
+{
+ VM_OBJECT_ASSERT_LOCKED(object);
+
+ if (vpp != NULL)
+ *vpp = vm_object_vnode(object);
+ return (pagertab[object->type]->pgo_kvme_type);
+}
diff --git a/sys/vm/vm_pager.h b/sys/vm/vm_pager.h
index 68c5fe42351e..5e0261f818cf 100644
--- a/sys/vm/vm_pager.h
+++ b/sys/vm/vm_pager.h
@@ -71,6 +71,7 @@ typedef void pgo_freespace_t(vm_object_t object, vm_pindex_t start,
vm_size_t size);
struct pagerops {
+ int pgo_kvme_type;
pgo_init_t *pgo_init; /* Initialize pager. */
pgo_alloc_t *pgo_alloc; /* Allocate pager. */
pgo_dealloc_t *pgo_dealloc; /* Disassociate. */
diff --git a/sys/vm/vnode_pager.c b/sys/vm/vnode_pager.c
index fb0b4068183b..d167fcc555fb 100644
--- a/sys/vm/vnode_pager.c
+++ b/sys/vm/vnode_pager.c
@@ -74,6 +74,7 @@ __FBSDID("$FreeBSD$");
#include <sys/rwlock.h>
#include <sys/sf_buf.h>
#include <sys/domainset.h>
+#include <sys/user.h>
#include <machine/atomic.h>
@@ -108,6 +109,7 @@ static void vnode_pager_release_writecount(vm_object_t, vm_offset_t,
static void vnode_pager_getvp(vm_object_t, struct vnode **, bool *);
const struct pagerops vnodepagerops = {
+ .pgo_kvme_type = KVME_TYPE_VNODE,
.pgo_alloc = vnode_pager_alloc,
.pgo_dealloc = vnode_pager_dealloc,
.pgo_getpages = vnode_pager_getpages,
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