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powerpc/vdso: Remove vdso_ready

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There is no way to get out of vdso_init() prematuraly anymore.

Remove vdso_ready as it will always be 1.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0e1e18c6329b848aa3edeeba76509b4d76182e7d.1601197618.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2020-09-27 09:16:45 +00:00 • committed by Michael Ellerman
parent a4ccd64acb
commit 23c4ceaf1a
1 changed files with 0 additions and 6 deletions
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6
arch/powerpc/kernel/vdso.c
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@ -47,8 +47,6 @@
extern char vdso32_start, vdso32_end;
extern char vdso64_start, vdso64_end;
static int vdso_ready;
/*
* The vdso data page (aka. systemcfg for old ppc64 fans) is here.
* Once the early boot kernel code no longer needs to muck around
@ -168,9 +166,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
mm->context.vdso = NULL;
if (!vdso_ready)
return 0;
if (mmap_write_lock_killable(mm))
return -EINTR;
@ -309,7 +304,6 @@ static int __init vdso_init(void)
vdso64_spec.pages = vdso_setup_pages(&vdso64_start, &vdso64_end);
smp_wmb();
vdso_ready = 1;
return 0;
}