ARM: use set_current_blocked() and block_sigmask()
authorMatt Fleming <matt.fleming@intel.com>
Mon, 5 Mar 2012 23:05:34 +0000 (15:05 -0800)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Sat, 24 Mar 2012 09:38:55 +0000 (09:38 +0000)
commit101d9b0dedbc9e560737d3357104bf09db48eb3e
treec04dbbbc2e70b92f05668913d705378d9e717d64
parente88443cdfc61af5cd22d6aeb245ee94833c473bc
ARM: use set_current_blocked() and block_sigmask()

As described in e6fa16ab ("signal: sigprocmask() should do
retarget_shared_pending()") the modification of current->blocked is
incorrect as we need to check for shared signals we're about to block.

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.

Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Cc: Dave Martin <dave.martin@linaro.org>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Will Deacon <will.deacon@arm.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: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/kernel/signal.c