uprobes/x86: Fix is_64bit_mm() with CONFIG_X86_X32

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is_64bit_mm() assumes that mm->context.ia32_compat means the 32-bit
instruction set, this is not true if the task is TIF_X32.

Change set_personality_ia32() to initialize mm->context.ia32_compat
by TIF_X32 or TIF_IA32 instead of 1. This allows to fix is_64bit_mm()
without affecting other users, they all treat ia32_compat as "bool".

TIF_ in ->ia32_compat looks a bit strange, but this is grep-friendly
and avoids the new define's.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jim Keniston <jkenisto@us.ibm.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>

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This commit is contained in:

Oleg Nesterov 2014-04-19 18:10:09 +02:00

parent 8dbacad93a

commit b24dc8dace

2 changed files with 5 additions and 4 deletions

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7

arch/x86/kernel/process_64.c

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2

arch/x86/kernel/uprobes.c

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