powerpc/64: Export pgtable_cache and pgtable_cache_add for KVM

paulusmack · mpe · commit ba9b399aee6f · 2017-01-31T19:11:45.000+11:00
This exports the pgtable_cache array and the pgtable_cache_add
function so that HV KVM can use them for allocating radix page
tables for guests.

Signed-off-by: Paul Mackerras &lt;paulus@ozlabs.org&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
@@ -41,6 +41,7 @@ static void pmd_ctor(void *addr)
 }
 
 struct kmem_cache *pgtable_cache[MAX_PGTABLE_INDEX_SIZE];
+EXPORT_SYMBOL_GPL(pgtable_cache);	/* used by kvm_hv module */
 
 /*
  * Create a kmem_cache() for pagetables.  This is not used for PTE
@@ -82,7 +83,7 @@ void pgtable_cache_add(unsigned shift, void (*ctor)(void *))
 	pgtable_cache[shift - 1] = new;
 	pr_debug("Allocated pgtable cache for order %d\n", shift);
 }
-
+EXPORT_SYMBOL_GPL(pgtable_cache_add);	/* used by kvm_hv module */
 
 void pgtable_cache_init(void)
 {

Original file line number	Diff line number	Diff line change
`@@ -41,6 +41,7 @@ static void pmd_ctor(void *addr)`
`41`	`41`	`}`
`42`	`42`
`43`	`43`	`struct kmem_cache *pgtable_cache[MAX_PGTABLE_INDEX_SIZE];`
	`44`	`+EXPORT_SYMBOL_GPL(pgtable_cache); /* used by kvm_hv module */`
`44`	`45`
`45`	`46`	`/*`
`46`	`47`	`* Create a kmem_cache() for pagetables. This is not used for PTE`
`@@ -82,7 +83,7 @@ void pgtable_cache_add(unsigned shift, void (ctor)(void ))`
`82`	`83`	`pgtable_cache[shift - 1] = new;`
`83`	`84`	`pr_debug("Allocated pgtable cache for order %d\n", shift);`
`84`	`85`	`}`
`85`		`-`
	`86`	`+EXPORT_SYMBOL_GPL(pgtable_cache_add); /* used by kvm_hv module */`
`86`	`87`
`87`	`88`	`void pgtable_cache_init(void)`
`88`	`89`	`{`