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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [XenPPC] [PATCH] [ppc] remove some historical mismerges
4 files changed, 8 insertions(+), 204 deletions(-)
linux-2.6-xen-sparse/drivers/xen/core/xen_sysfs.c | 7
xen/arch/ia64/linux-xen/setup.c | 1
xen/arch/ia64/vmx/vmmu.c | 4
xen/arch/ia64/xen/xenmisc.c | 200 ---------------------
# HG changeset patch
# User Hollis Blanchard <hollisb@xxxxxxxxxx>
# Node ID 29861ae27914ea6905d75276fd0d612969878874
# Parent e057a7ee26efb3a50a16f36b5568a8c1c860953c
[ppc] remove some historical mismerges
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
diff -r e057a7ee26ef -r 29861ae27914
linux-2.6-xen-sparse/drivers/xen/core/xen_sysfs.c
--- a/linux-2.6-xen-sparse/drivers/xen/core/xen_sysfs.c Tue May 30 15:11:04
2006 -0500
+++ b/linux-2.6-xen-sparse/drivers/xen/core/xen_sysfs.c Tue May 30 15:24:31
2006 -0500
@@ -276,7 +276,12 @@ static void xen_properties_destroy(void)
static int __init hyper_sysfs_init(void)
{
- int ret = xen_sysfs_type_init();
+ int ret;
+
+ if (!is_running_on_xen())
+ return -ENODEV;
+
+ ret = xen_sysfs_type_init();
if (ret)
goto out;
ret = xen_sysfs_version_init();
diff -r e057a7ee26ef -r 29861ae27914 xen/arch/ia64/linux-xen/setup.c
--- a/xen/arch/ia64/linux-xen/setup.c Tue May 30 15:11:04 2006 -0500
+++ b/xen/arch/ia64/linux-xen/setup.c Tue May 30 15:24:31 2006 -0500
@@ -868,7 +868,6 @@ cpu_init (void)
#endif
#ifndef XEN
atomic_inc(&init_mm.mm_count);
-#ifndef XEN
current->active_mm = &init_mm;
#endif
#ifndef XEN
diff -r e057a7ee26ef -r 29861ae27914 xen/arch/ia64/vmx/vmmu.c
--- a/xen/arch/ia64/vmx/vmmu.c Tue May 30 15:11:04 2006 -0500
+++ b/xen/arch/ia64/vmx/vmmu.c Tue May 30 15:24:31 2006 -0500
@@ -173,8 +173,6 @@ void free_domain_tlb(struct vcpu *v)
void free_domain_tlb(struct vcpu *v)
{
struct page_info *page;
- void *vhptbase;
- thash_cb_t *tlb;
if ( v->arch.vtlb.hash) {
page = virt_to_page(v->arch.vtlb.hash);
@@ -373,6 +371,8 @@ IA64FAULT vmx_vcpu_itc_d(VCPU *vcpu, UIN
return IA64_NO_FAULT;
}
+
+
IA64FAULT vmx_vcpu_itr_i(VCPU *vcpu, u64 slot, u64 pte, u64 itir, u64 ifa)
diff -r e057a7ee26ef -r 29861ae27914 xen/arch/ia64/xen/xenmisc.c
--- a/xen/arch/ia64/xen/xenmisc.c Tue May 30 15:11:04 2006 -0500
+++ b/xen/arch/ia64/xen/xenmisc.c Tue May 30 15:24:31 2006 -0500
@@ -539,203 +539,3 @@ int get_page_type(struct page_info *page
return 1;
}
-
-///////////////////////////////
-// from arch/x86/mm.c
-///////////////////////////////
-
-#ifdef VERBOSE
-#define MEM_LOG(_f, _a...) \
- printk("DOM%u: (file=mm.c, line=%d) " _f "\n", \
- current->domain->domain_id , __LINE__ , ## _a )
-#else
-#define MEM_LOG(_f, _a...) ((void)0)
-#endif
-
-void cleanup_writable_pagetable(struct domain *d)
-{
- return;
-}
-
-void put_page_type(struct page_info *page)
-{
- u32 nx, x, y = page->u.inuse.type_info;
-
- again:
- do {
- x = y;
- nx = x - 1;
-
- ASSERT((x & PGT_count_mask) != 0);
-
- /*
- * The page should always be validated while a reference is held. The
- * exception is during domain destruction, when we forcibly invalidate
- * page-table pages if we detect a referential loop.
- * See domain.c:relinquish_list().
- */
- ASSERT((x & PGT_validated) ||
- test_bit(_DOMF_dying, &page_get_owner(page)->domain_flags));
-
- if ( unlikely((nx & PGT_count_mask) == 0) )
- {
- /* Record TLB information for flush later. Races are harmless. */
- page->tlbflush_timestamp = tlbflush_current_time();
-
- if ( unlikely((nx & PGT_type_mask) <= PGT_l4_page_table) &&
- likely(nx & PGT_validated) )
- {
- /*
- * Page-table pages must be unvalidated when count is zero. The
- * 'free' is safe because the refcnt is non-zero and validated
- * bit is clear => other ops will spin or fail.
- */
- if ( unlikely((y = cmpxchg(&page->u.inuse.type_info, x,
- x & ~PGT_validated)) != x) )
- goto again;
- /* We cleared the 'valid bit' so we do the clean up. */
- free_page_type(page, x);
- /* Carry on, but with the 'valid bit' now clear. */
- x &= ~PGT_validated;
- nx &= ~PGT_validated;
- }
- }
- else if ( unlikely(((nx & (PGT_pinned | PGT_count_mask)) ==
- (PGT_pinned | 1)) &&
- ((nx & PGT_type_mask) != PGT_writable_page)) )
- {
- /* Page is now only pinned. Make the back pointer mutable again. */
- nx |= PGT_va_mutable;
- }
- }
- while ( unlikely((y = cmpxchg(&page->u.inuse.type_info, x, nx)) != x) );
-}
-
-
-int get_page_type(struct page_info *page, u32 type)
-{
- u32 nx, x, y = page->u.inuse.type_info;
-
- again:
- do {
- x = y;
- nx = x + 1;
- if ( unlikely((nx & PGT_count_mask) == 0) )
- {
- MEM_LOG("Type count overflow on pfn %lx", page_to_mfn(page));
- return 0;
- }
- else if ( unlikely((x & PGT_count_mask) == 0) )
- {
- if ( (x & (PGT_type_mask|PGT_va_mask)) != type )
- {
- if ( (x & PGT_type_mask) != (type & PGT_type_mask) )
- {
- /*
- * On type change we check to flush stale TLB
- * entries. This may be unnecessary (e.g., page
- * was GDT/LDT) but those circumstances should be
- * very rare.
- */
- cpumask_t mask =
- page_get_owner(page)->domain_dirty_cpumask;
- tlbflush_filter(mask, page->tlbflush_timestamp);
-
- if ( unlikely(!cpus_empty(mask)) )
- {
- perfc_incrc(need_flush_tlb_flush);
- flush_tlb_mask(mask);
- }
- }
-
- /* We lose existing type, back pointer, and validity. */
- nx &= ~(PGT_type_mask | PGT_va_mask | PGT_validated);
- nx |= type;
-
- /* No special validation needed for writable pages. */
- /* Page tables and GDT/LDT need to be scanned for validity. */
- if ( type == PGT_writable_page )
- nx |= PGT_validated;
- }
- }
- else
- {
- if ( unlikely((x & (PGT_type_mask|PGT_va_mask)) != type) )
- {
- if ( unlikely((x & PGT_type_mask) != (type & PGT_type_mask) ) )
- {
- if ( current->domain == page_get_owner(page) )
- {
- /*
- * This ensures functions like set_gdt() see up-to-date
- * type info without needing to clean up writable p.t.
- * state on the fast path.
- */
- LOCK_BIGLOCK(current->domain);
- cleanup_writable_pagetable(current->domain);
- y = page->u.inuse.type_info;
- UNLOCK_BIGLOCK(current->domain);
- /* Can we make progress now? */
- if ( ((y & PGT_type_mask) == (type & PGT_type_mask)) ||
- ((y & PGT_count_mask) == 0) )
- goto again;
- }
- if ( ((x & PGT_type_mask) != PGT_l2_page_table) ||
- ((type & PGT_type_mask) != PGT_l1_page_table) )
- MEM_LOG("Bad type (saw %" PRtype_info
- " != exp %" PRtype_info ") "
- "for mfn %lx (pfn %lx)",
- x, type, page_to_mfn(page),
- get_gpfn_from_mfn(page_to_mfn(page)));
- return 0;
- }
- else if ( (x & PGT_va_mask) == PGT_va_mutable )
- {
- /* The va backpointer is mutable, hence we update it. */
- nx &= ~PGT_va_mask;
- nx |= type; /* we know the actual type is correct */
- }
- else if ( ((type & PGT_va_mask) != PGT_va_mutable) &&
- ((type & PGT_va_mask) != (x & PGT_va_mask)) )
- {
-#ifdef CONFIG_X86_PAE
- /* We use backptr as extra typing. Cannot be unknown. */
- if ( (type & PGT_type_mask) == PGT_l2_page_table )
- return 0;
-#endif
- /* This table is possibly mapped at multiple locations. */
- nx &= ~PGT_va_mask;
- nx |= PGT_va_unknown;
- }
- }
- if ( unlikely(!(x & PGT_validated)) )
- {
- /* Someone else is updating validation of this page. Wait... */
- while ( (y = page->u.inuse.type_info) == x )
- cpu_relax();
- goto again;
- }
- }
- }
- while ( unlikely((y = cmpxchg(&page->u.inuse.type_info, x, nx)) != x) );
-
- if ( unlikely(!(nx & PGT_validated)) )
- {
- /* Try to validate page type; drop the new reference on failure. */
- if ( unlikely(!alloc_page_type(page, type)) )
- {
- MEM_LOG("Error while validating mfn %lx (pfn %lx) for type %"
- PRtype_info ": caf=%08x taf=%" PRtype_info,
- page_to_mfn(page), get_gpfn_from_mfn(page_to_mfn(page)),
- type, page->count_info, page->u.inuse.type_info);
- /* Noone else can get a reference. We hold the only ref. */
- page->u.inuse.type_info = 0;
- return 0;
- }
-
- /* Noone else is updating simultaneously. */
- __set_bit(_PGT_validated, &page->u.inuse.type_info);
- }
-
- return 1;
-}
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