forked from luck/tmp_suning_uos_patched
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>
27 lines
647 B
C
27 lines
647 B
C
#include <linux/mm_types.h>
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#include <linux/rbtree.h>
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#include <linux/rwsem.h>
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <linux/cpumask.h>
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#include <asm/atomic.h>
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#include <asm/pgtable.h>
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#include <asm/mmu.h>
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#ifndef INIT_MM_CONTEXT
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#define INIT_MM_CONTEXT(name)
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#endif
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struct mm_struct init_mm = {
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.mm_rb = RB_ROOT,
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.pgd = swapper_pg_dir,
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.mm_users = ATOMIC_INIT(2),
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.mm_count = ATOMIC_INIT(1),
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.mmap_sem = __RWSEM_INITIALIZER(init_mm.mmap_sem),
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.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
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.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
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.cpu_vm_mask = CPU_MASK_ALL,
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INIT_MM_CONTEXT(init_mm)
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};
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