From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 27 Apr 2011 19:09:39 +0000 (+0200)
Subject: x86: signal: sys_rt_sigreturn() should use set_current_blocked()
X-Git-Tag: v3.0-rc1~382^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9bd3f0faa90084f188830d77723bafe422e486b;p=pandora-kernel.git

x86: signal: sys_rt_sigreturn() should use set_current_blocked()

Normally sys_rt_sigreturn() restores the old current->blocked which was
changed by handle_signal(), and unblocking is always fine.

But the debugger or application itself can change frame->uc_sigmask and
thus we need set_current_blocked()->retarget_shared_pending().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Matt Fleming <matt.fleming@linux.intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
---

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