On Mon, Apr 25, 2016 at 11:37:33AM +0800, Zeng Tao wrote: > For elf32 thread, personality is used for arm32, > and thread_flag for arm64. > > Here personality is used for arm64, so fix it. > > Signed-off-by: Zeng Tao <prime.z...@huawei.com> > --- > arch/arm64/kernel/cpuinfo.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c > index 84c8684..f739398 100644 > --- a/arch/arm64/kernel/cpuinfo.c > +++ b/arch/arm64/kernel/cpuinfo.c > @@ -126,7 +126,7 @@ static int c_show(struct seq_file *m, void *v) > * software which does already (at least for 32-bit). > */ > seq_puts(m, "Features\t:"); > - if (personality(current->personality) == PER_LINUX32) { > + if (test_thread_flag(TIF_32BIT)) { > #ifdef CONFIG_COMPAT > for (j = 0; compat_hwcap_str[j]; j++) > if (compat_elf_hwcap & (1 << j))
We discussed this some time ago and we decided against it. One reason was scripts where you may or may not end up with the desired cpuinfo (e.g. grep being 64-bit invoked by a 32-bit bash). The personality at least is inherited by child processes. -- Catalin