a1b200e27c
Provide an INIT_MM_CONTEXT intializer macro which can be used to statically initialize mm_struct:mm_context of init_mm. This way we can get rid of code which will do the initialization at run time (on s390). In addition the current code can be found at a place where it is not expected. So let's have a common initializer which architectures can use if needed. This is based on a patch from Suzuki Poulose. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Suzuki Poulose <suzuki@in.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
21 lines
643 B
C
21 lines
643 B
C
#ifndef __MMU_H
|
|
#define __MMU_H
|
|
|
|
typedef struct {
|
|
spinlock_t list_lock;
|
|
struct list_head crst_list;
|
|
struct list_head pgtable_list;
|
|
unsigned long asce_bits;
|
|
unsigned long asce_limit;
|
|
unsigned long vdso_base;
|
|
int noexec;
|
|
int has_pgste; /* The mmu context has extended page tables */
|
|
int alloc_pgste; /* cloned contexts will have extended page tables */
|
|
} mm_context_t;
|
|
|
|
#define INIT_MM_CONTEXT(name) \
|
|
.context.list_lock = __SPIN_LOCK_UNLOCKED(name.context.list_lock), \
|
|
.context.crst_list = LIST_HEAD_INIT(name.context.crst_list), \
|
|
.context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list),
|
|
|
|
#endif
|