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powerpc: switch to generic compat rt_sigprocmask()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-12-25 13:49:43 -05:00
parent 7cce246557
commit 451a651d33
2 changed files with 1 additions and 35 deletions
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1
arch/powerpc/Kconfig
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@ -145,6 +145,7 @@ config PPC
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS
select GENERIC_SIGALTSTACK
select GENERIC_COMPAT_RT_SIGPROCMASK
config EARLY_PRINTK
bool

35
arch/powerpc/kernel/signal_32.c
View file

@ -620,41 +620,6 @@ long compat_sys_rt_sigaction(int sig, const struct sigaction32 __user *act,
return ret;
}
/*
* Note: it is necessary to treat how as an unsigned int, with the
* corresponding cast to a signed int to insure that the proper
* conversion (sign extension) between the register representation
* of a signed int (msr in 32-bit mode) and the register representation
* of a signed int (msr in 64-bit mode) is performed.
*/
long compat_sys_rt_sigprocmask(u32 how, compat_sigset_t __user *set,
compat_sigset_t __user *oset, size_t sigsetsize)
{
sigset_t s;
sigset_t __user *up;
int ret;
mm_segment_t old_fs = get_fs();
if (set) {
if (get_sigset_t(&s, set))
return -EFAULT;
}
set_fs(KERNEL_DS);
/* This is valid because of the set_fs() */
up = (sigset_t __user *) &s;
ret = sys_rt_sigprocmask((int)how, set ? up : NULL, oset ? up : NULL,
sigsetsize);
set_fs(old_fs);
if (ret)
return ret;
if (oset) {
if (put_sigset_t(oset, &s))
return -EFAULT;
}
return 0;
}
long compat_sys_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
{
sigset_t s;