C6X: use set_current_blocked() and block_sigmask()
authorMatt Fleming <matt.fleming@intel.com>
Thu, 5 Apr 2012 21:25:14 +0000 (14:25 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 5 Apr 2012 22:25:51 +0000 (15:25 -0700)
commit6e61ee3b7a1e05a8c5b76095a1ea6c3711c922cb
tree346e28bf6f34ecb253a5ef6dfaee9d394b28589d
parent389325b449caf3c73544f25bd4d6742b7f97e5dd
C6X: use set_current_blocked() and block_sigmask()

As described in e6fa16ab9c1e ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check whether the signal we're about to block is
pending in the shared queue.

Also, use the new helper function introduced in commit 5e6292c0f28f
("signal: add block_sigmask() for adding sigmask to current->blocked")
which centralises the code for updating current->blocked after
successfully delivering a signal and reduces the amount of duplicate
code across architectures.  In the past some architectures got this code
wrong, so using this helper function should stop that from happening
again.

Acked-by: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/c6x/kernel/signal.c