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Commit 1729dc78 authored by Paul Mackerras's avatar Paul Mackerras
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[POWERPC] Correct the MAX_CONTEXT definition 



When we increased the address space per process to 2^44 bytes, the
number of contexts that we could actually use reduced, but we forgot
to decrease the MAX_CONTEXT definition.  (Fortunately this would only
cause problems if we actually had more than 512k user processes
running.)  This patch corrects the definition.

Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 48924449

include/asm-powerpc/mmu_context.h

+6 −1
Original line number Diff line number Diff line
@@ -25,8 +25,13 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, 
{

}



/*

 * The proto-VSID space has 2^35 - 1 segments available for user mappings.

 * Each segment contains 2^28 bytes.  Each context maps 2^44 bytes,

 * so we can support 2^19-1 contexts (19 == 35 + 28 - 44).

 */

#define NO_CONTEXT	0

#define MAX_CONTEXT	(0x100000-1)

#define MAX_CONTEXT	((1UL << 19) - 1)



extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);

extern void destroy_context(struct mm_struct *mm);