Module Name: src
Committed By: uebayasi
Date: Sun Jan 31 17:13:38 UTC 2010
Modified Files:
src/sys/uvm: uvm_fault.c
Log Message:
Ax uvm_fault_internal() & break it into functions. "Upper" fault and "lower"
fault routines are separated now.
To generate a diff of this commit:
cvs rdiff -u -r1.137 -r1.138 src/sys/uvm/uvm_fault.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/uvm/uvm_fault.c
diff -u src/sys/uvm/uvm_fault.c:1.137 src/sys/uvm/uvm_fault.c:1.138
--- src/sys/uvm/uvm_fault.c:1.137 Sun Jan 31 09:20:31 2010
+++ src/sys/uvm/uvm_fault.c Sun Jan 31 17:13:38 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_fault.c,v 1.137 2010/01/31 09:20:31 uebayasi Exp $ */
+/* $NetBSD: uvm_fault.c,v 1.138 2010/01/31 17:13:38 uebayasi Exp $ */
/*
*
@@ -39,7 +39,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_fault.c,v 1.137 2010/01/31 09:20:31 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_fault.c,v 1.138 2010/01/31 17:13:38 uebayasi Exp $");
#include "opt_uvmhist.h"
@@ -692,6 +692,31 @@
#define UVM_FAULT_WIRE (1 << 0)
#define UVM_FAULT_MAXPROT (1 << 1)
+typedef int
+uvm_fault_subfunc_t(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage);
+static uvm_fault_subfunc_t uvm_fault_lower;
+static uvm_fault_subfunc_t uvm_fault_lower_special;
+static uvm_fault_subfunc_t uvm_fault_lower_generic;
+static uvm_fault_subfunc_t uvm_fault_lower_generic1;
+static uvm_fault_subfunc_t uvm_fault_upper;
+static uvm_fault_subfunc_t uvm_fault_lower_generic2;
+static void
+uvm_fault_lower_generic_lookup(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page **ruobjpage);
+
int
uvm_fault_internal(struct vm_map *orig_map, vaddr_t vaddr,
vm_prot_t access_type, int fault_flag)
@@ -705,7 +730,7 @@
struct uvm_object *uobj;
struct vm_anon *anons_store[UVM_MAXRANGE], **anons;
struct vm_anon *anon_spare;
- struct vm_page *pages[UVM_MAXRANGE], *uobjpage;
+ struct vm_page *pages[UVM_MAXRANGE], *uobjpage = NULL;
UVMHIST_FUNC("uvm_fault"); UVMHIST_CALLED(maphist);
UVMHIST_LOG(maphist, "(map=0x%x, vaddr=0x%x, at=%d, ff=%d)",
@@ -734,7 +759,38 @@
*/
ReFault:
-/* uvm_fault_prepare */
+ goto uvm_fault_prepare;
+uvm_fault_prepare_done:
+
+ goto uvm_fault_upper_lookup;
+uvm_fault_upper_lookup_done:
+
+ if (shadowed == true)
+ error = uvm_fault_upper(
+ &ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, &anon_spare,
+ pages, uobjpage);
+ else
+ error = uvm_fault_lower(
+ &ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, &anon_spare,
+ pages, uobjpage);
+
+ if (error == -ERESTART)
+ goto ReFault;
+
+done:
+ if (anon_spare != NULL) {
+ anon_spare->an_ref--;
+ uvm_anfree(anon_spare);
+ }
+ return error;
+
+uvm_fault_prepare:
{
vm_prot_t check_prot;
int nback, nforw;
@@ -930,13 +986,14 @@
centeridx = 0;
}
}
+ goto uvm_fault_prepare_done;
/*
* => startva is fixed
* => npages is fixed
*/
-/* uvm_fault_upper_lookup */
+uvm_fault_upper_lookup:
{
int lcv;
vaddr_t currva;
@@ -1026,11 +1083,21 @@
* XXX case. --thorpej
*/
}
+ goto uvm_fault_upper_lookup_done;
+}
- if (shadowed == true)
- goto Case1;
+static int
+uvm_fault_lower(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
+ int error;
-/* uvm_fault_lower */
/*
* if the desired page is not shadowed by the amap and we have a
* backing object, then we check to see if the backing object would
@@ -1040,26 +1107,61 @@
*/
if (uobj && uobj->pgops->pgo_fault != NULL) {
-/* uvm_fault_lower_special */
+ error = uvm_fault_lower_special(
+ ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, ranon_spare,
+ pages, uobjpage);
+ } else {
+ error = uvm_fault_lower_generic(
+ ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, ranon_spare,
+ pages, uobjpage);
+ }
+ return error;
+}
+
+static int
+uvm_fault_lower_special(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
+ int error;
+
mutex_enter(&uobj->vmobjlock);
/* locked: maps(read), amap (if there), uobj */
- error = uobj->pgops->pgo_fault(&ufi, startva, pages, npages,
+ error = uobj->pgops->pgo_fault(ufi, startva, pages, npages,
centeridx, access_type, PGO_LOCKED|PGO_SYNCIO);
/* locked: nothing, pgo_fault has unlocked everything */
if (error == ERESTART)
- goto ReFault; /* try again! */
+ error = -ERESTART; /* try again! */
/*
* object fault routine responsible for pmap_update().
*/
- goto done;
- }
-/* uvm_fault_lower_generic_lookup */
- {
- int lcv, gotpages;
- vaddr_t currva;
+ return error;
+}
+
+static int
+uvm_fault_lower_generic(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
/*
* now, if the desired page is not shadowed by the amap and we have
@@ -1072,8 +1174,35 @@
if (uobj == NULL) {
/* zero fill; don't care neighbor pages */
uobjpage = NULL;
- goto lower_fault_lookup_done;
- }
+ } else {
+ uvm_fault_lower_generic_lookup(
+ ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, ranon_spare,
+ pages, &uobjpage);
+ }
+ return uvm_fault_lower_generic1(
+ ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, ranon_spare,
+ pages, uobjpage);
+}
+
+static void
+uvm_fault_lower_generic_lookup(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page **ruobjpage)
+{
+ int lcv, gotpages;
+ vaddr_t currva;
+ struct vm_page *uobjpage;
mutex_enter(&uobj->vmobjlock);
/* locked (!shadowed): maps(read), amap (if there), uobj */
@@ -1083,10 +1212,10 @@
uvmexp.fltlget++;
gotpages = npages;
- (void) uobj->pgops->pgo_get(uobj, ufi.entry->offset + startva - ufi.entry->start,
+ (void) uobj->pgops->pgo_get(uobj, ufi->entry->offset + startva - ufi->entry->start,
pages, &gotpages, centeridx,
- access_type & MASK(ufi.entry),
- ufi.entry->advice, PGO_LOCKED);
+ access_type & MASK(ufi->entry),
+ ufi->entry->advice, PGO_LOCKED);
/*
* check for pages to map, if we got any
@@ -1095,7 +1224,7 @@
uobjpage = NULL;
if (gotpages == 0)
- goto lower_fault_lookup_done;
+ goto done;
currva = startva;
for (lcv = 0; lcv < npages;
@@ -1137,7 +1266,7 @@
mutex_exit(&uvm_pageqlock);
UVMHIST_LOG(maphist,
" MAPPING: n obj: pm=0x%x, va=0x%x, pg=0x%x",
- ufi.orig_map->pmap, currva, curpg, 0);
+ ufi->orig_map->pmap, currva, curpg, 0);
uvmexp.fltnomap++;
/*
@@ -1154,11 +1283,11 @@
|| (curpg->loan_count > 0)
|| UVM_OBJ_NEEDS_WRITEFAULT(curpg->uobject);
- (void) pmap_enter(ufi.orig_map->pmap, currva,
+ (void) pmap_enter(ufi->orig_map->pmap, currva,
VM_PAGE_TO_PHYS(curpg),
readonly ?
enter_prot & ~VM_PROT_WRITE :
- enter_prot & MASK(ufi.entry),
+ enter_prot & MASK(ufi->entry),
PMAP_CANFAIL |
(wired ? PMAP_WIRED : 0));
@@ -1173,11 +1302,21 @@
curpg->flags &= ~(PG_BUSY);
UVM_PAGE_OWN(curpg, NULL);
}
- pmap_update(ufi.orig_map->pmap);
+ pmap_update(ufi->orig_map->pmap);
+done:
+ *ruobjpage = uobjpage;
+}
-lower_fault_lookup_done:
- {}
- }
+static int
+uvm_fault_lower_generic1(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
/* locked: maps(read), amap(if there), uobj(if !null), uobjpage(if !null) */
KASSERT(!shadowed);
@@ -1204,12 +1343,26 @@
* redirect case 2: if we are not shadowed, go to case 2.
*/
- goto Case2;
+ return uvm_fault_lower_generic2(
+ ufi, access_type, enter_prot,
+ wired, narrow, shadowed, wire_fault, cow_now,
+ npages, centeridx, startva,
+ amap, uobj, anons_store, anons, ranon_spare,
+ pages, uobjpage);
+}
-/* uvm_fault_upper */
-Case1:
- {
+static int
+uvm_fault_upper(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
struct vm_anon *anon, *oanon;
+ int error;
/* locked: maps(read), amap */
KASSERT(mutex_owned(&amap->am_l));
@@ -1240,20 +1393,20 @@
* lock that object for us if it does not fail.
*/
- error = uvmfault_anonget(&ufi, amap, anon);
+ error = uvmfault_anonget(ufi, amap, anon);
switch (error) {
case 0:
break;
case ERESTART:
- goto ReFault;
+ return -ERESTART;
case EAGAIN:
kpause("fltagain1", false, hz/2, NULL);
- goto ReFault;
+ return -ERESTART;
default:
- goto done;
+ return error;
}
/*
@@ -1303,10 +1456,10 @@
/* get new un-owned replacement page */
pg = uvm_pagealloc(NULL, 0, NULL, 0);
if (pg == NULL) {
- uvmfault_unlockall(&ufi, amap, uobj,
+ uvmfault_unlockall(ufi, amap, uobj,
anon);
uvm_wait("flt_noram2");
- goto ReFault;
+ return -ERESTART;
}
/*
@@ -1376,15 +1529,15 @@
uvmexp.flt_acow++;
oanon = anon; /* oanon = old, locked anon */
- error = uvmfault_promote(&ufi, oanon, PGO_DONTCARE,
- &anon, &anon_spare);
+ error = uvmfault_promote(ufi, oanon, PGO_DONTCARE,
+ &anon, ranon_spare);
switch (error) {
case 0:
break;
case ERESTART:
- goto ReFault;
+ return -ERESTART;
default:
- goto done;
+ return error;
}
pg = anon->an_page;
@@ -1423,8 +1576,8 @@
*/
UVMHIST_LOG(maphist, " MAPPING: anon: pm=0x%x, va=0x%x, pg=0x%x",
- ufi.orig_map->pmap, ufi.orig_rvaddr, pg, 0);
- if (pmap_enter(ufi.orig_map->pmap, ufi.orig_rvaddr, VM_PAGE_TO_PHYS(pg),
+ ufi->orig_map->pmap, ufi->orig_rvaddr, pg, 0);
+ if (pmap_enter(ufi->orig_map->pmap, ufi->orig_rvaddr, VM_PAGE_TO_PHYS(pg),
enter_prot, access_type | PMAP_CANFAIL | (wired ? PMAP_WIRED : 0))
!= 0) {
@@ -1438,17 +1591,17 @@
if (anon != oanon)
mutex_exit(&anon->an_lock);
- uvmfault_unlockall(&ufi, amap, uobj, oanon);
+ uvmfault_unlockall(ufi, amap, uobj, oanon);
if (!uvm_reclaimable()) {
UVMHIST_LOG(maphist,
"<- failed. out of VM",0,0,0,0);
/* XXX instrumentation */
error = ENOMEM;
- goto done;
+ return error;
}
/* XXX instrumentation */
uvm_wait("flt_pmfail1");
- goto ReFault;
+ return -ERESTART;
}
/*
@@ -1479,17 +1632,25 @@
if (anon != oanon)
mutex_exit(&anon->an_lock);
- uvmfault_unlockall(&ufi, amap, uobj, oanon);
- pmap_update(ufi.orig_map->pmap);
+ uvmfault_unlockall(ufi, amap, uobj, oanon);
+ pmap_update(ufi->orig_map->pmap);
error = 0;
- goto done;
- }
+ return error;
+}
-/* uvm_fault_lower_generic */
-Case2:
- {
+static int
+uvm_fault_lower_generic2(
+ struct uvm_faultinfo *ufi, vm_prot_t access_type, vm_prot_t enter_prot,
+ bool wired, bool narrow, bool shadowed, bool wire_fault, bool cow_now,
+ int npages, int centeridx, vaddr_t startva,
+ struct vm_amap *amap, struct uvm_object *uobj,
+ struct vm_anon **anons_store, struct vm_anon **anons,
+ struct vm_anon **ranon_spare,
+ struct vm_page **pages, struct vm_page *uobjpage)
+{
struct vm_anon *anon;
bool promote;
+ int error;
/*
* handle case 2: faulting on backing object or zero fill
@@ -1515,7 +1676,7 @@
promote = true; /* always need anon here */
} else {
KASSERT(uobjpage != PGO_DONTCARE);
- promote = cow_now && UVM_ET_ISCOPYONWRITE(ufi.entry);
+ promote = cow_now && UVM_ET_ISCOPYONWRITE(ufi->entry);
}
UVMHIST_LOG(maphist, " case 2 fault: promote=%d, zfill=%d",
promote, (uobj == NULL), 0,0);
@@ -1541,14 +1702,14 @@
curlwp->l_ru.ru_majflt++;
/* locked: maps(read), amap(if there), uobj */
- uvmfault_unlockall(&ufi, amap, NULL, NULL);
+ uvmfault_unlockall(ufi, amap, NULL, NULL);
/* locked: uobj */
uvmexp.fltget++;
gotpages = 1;
- uoff = (ufi.orig_rvaddr - ufi.entry->start) + ufi.entry->offset;
+ uoff = (ufi->orig_rvaddr - ufi->entry->start) + ufi->entry->offset;
error = uobj->pgops->pgo_get(uobj, uoff, &uobjpage, &gotpages,
- 0, access_type & MASK(ufi.entry), ufi.entry->advice,
+ 0, access_type & MASK(ufi->entry), ufi->entry->advice,
PGO_SYNCIO);
/* locked: uobjpage(if no error) */
KASSERT(error != 0 || (uobjpage->flags & PG_BUSY) != 0);
@@ -1562,12 +1723,12 @@
UVMHIST_LOG(maphist,
" pgo_get says TRY AGAIN!",0,0,0,0);
kpause("fltagain2", false, hz/2, NULL);
- goto ReFault;
+ return -ERESTART;
}
UVMHIST_LOG(maphist, "<- pgo_get failed (code %d)",
error, 0,0,0);
- goto done;
+ return error;
}
/* locked: uobjpage */
@@ -1581,7 +1742,7 @@
* the maps. always relock the object.
*/
- locked = uvmfault_relock(&ufi);
+ locked = uvmfault_relock(ufi);
if (locked && amap)
amap_lock(amap);
uobj = uobjpage->uobject;
@@ -1598,10 +1759,10 @@
if ((uobjpage->flags & PG_RELEASED) != 0 ||
(locked && amap &&
- amap_lookup(&ufi.entry->aref,
- ufi.orig_rvaddr - ufi.entry->start))) {
+ amap_lookup(&ufi->entry->aref,
+ ufi->orig_rvaddr - ufi->entry->start))) {
if (locked)
- uvmfault_unlockall(&ufi, amap, NULL, NULL);
+ uvmfault_unlockall(ufi, amap, NULL, NULL);
locked = false;
}
@@ -1618,12 +1779,12 @@
if (uobjpage->flags & PG_RELEASED) {
uvmexp.fltpgrele++;
uvm_pagefree(uobjpage);
- goto ReFault;
+ return -ERESTART;
}
uobjpage->flags &= ~(PG_BUSY|PG_WANTED);
UVM_PAGE_OWN(uobjpage, NULL);
mutex_exit(&uobj->vmobjlock);
- goto ReFault;
+ return -ERESTART;
}
/*
@@ -1670,7 +1831,7 @@
anon = NULL;
uvmexp.flt_obj++;
- if (UVM_ET_ISCOPYONWRITE(ufi.entry) ||
+ if (UVM_ET_ISCOPYONWRITE(ufi->entry) ||
UVM_OBJ_NEEDS_WRITEFAULT(uobjpage->uobject))
enter_prot &= ~VM_PROT_WRITE;
pg = uobjpage; /* map in the actual object */
@@ -1703,14 +1864,14 @@
uobjpage->flags &= ~(PG_BUSY|PG_WANTED);
UVM_PAGE_OWN(uobjpage, NULL);
- uvmfault_unlockall(&ufi, amap, uobj,
+ uvmfault_unlockall(ufi, amap, uobj,
NULL);
UVMHIST_LOG(maphist,
" out of RAM breaking loan, waiting",
0,0,0,0);
uvmexp.fltnoram++;
uvm_wait("flt_noram4");
- goto ReFault;
+ return -ERESTART;
}
uobjpage = pg;
}
@@ -1725,15 +1886,15 @@
if (amap == NULL)
panic("uvm_fault: want to promote data, but no anon");
#endif
- error = uvmfault_promote(&ufi, NULL, uobjpage,
- &anon, &anon_spare);
+ error = uvmfault_promote(ufi, NULL, uobjpage,
+ &anon, ranon_spare);
switch (error) {
case 0:
break;
case ERESTART:
- goto ReFault;
+ return -ERESTART;
default:
- goto done;
+ return error;
}
pg = anon->an_page;
@@ -1808,10 +1969,10 @@
UVMHIST_LOG(maphist,
" MAPPING: case2: pm=0x%x, va=0x%x, pg=0x%x, promote=%d",
- ufi.orig_map->pmap, ufi.orig_rvaddr, pg, promote);
+ ufi->orig_map->pmap, ufi->orig_rvaddr, pg, promote);
KASSERT((access_type & VM_PROT_WRITE) == 0 ||
(pg->flags & PG_RDONLY) == 0);
- if (pmap_enter(ufi.orig_map->pmap, ufi.orig_rvaddr, VM_PAGE_TO_PHYS(pg),
+ if (pmap_enter(ufi->orig_map->pmap, ufi->orig_rvaddr, VM_PAGE_TO_PHYS(pg),
pg->flags & PG_RDONLY ? enter_prot & ~VM_PROT_WRITE : enter_prot,
access_type | PMAP_CANFAIL | (wired ? PMAP_WIRED : 0)) != 0) {
@@ -1834,17 +1995,17 @@
pg->flags &= ~(PG_BUSY|PG_FAKE|PG_WANTED);
UVM_PAGE_OWN(pg, NULL);
- uvmfault_unlockall(&ufi, amap, uobj, anon);
+ uvmfault_unlockall(ufi, amap, uobj, anon);
if (!uvm_reclaimable()) {
UVMHIST_LOG(maphist,
"<- failed. out of VM",0,0,0,0);
/* XXX instrumentation */
error = ENOMEM;
- goto done;
+ return error;
}
/* XXX instrumentation */
uvm_wait("flt_pmfail2");
- goto ReFault;
+ return -ERESTART;
}
mutex_enter(&uvm_pageqlock);
@@ -1878,17 +2039,10 @@
pg->flags &= ~(PG_BUSY|PG_FAKE|PG_WANTED);
UVM_PAGE_OWN(pg, NULL);
- uvmfault_unlockall(&ufi, amap, uobj, anon);
- pmap_update(ufi.orig_map->pmap);
+ uvmfault_unlockall(ufi, amap, uobj, anon);
+ pmap_update(ufi->orig_map->pmap);
UVMHIST_LOG(maphist, "<- done (SUCCESS!)",0,0,0,0);
error = 0;
- }
-
-done:
- if (anon_spare != NULL) {
- anon_spare->an_ref--;
- uvm_anfree(anon_spare);
- }
return error;
}
