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Andy Lutomirski 7e7814180b signal: consolidate {TS,TLF}_RESTORE_SIGMASK code 
In general, there's no need for the "restore sigmask" flag to live in
ti->flags.  alpha, ia64, microblaze, powerpc, sh, sparc (64-bit only),
tile, and x86 use essentially identical alternative implementations,
placing the flag in ti->status.

Replace those optimized implementations with an equally good common
implementation that stores it in a bitfield in struct task_struct and
drop the custom implementations.

Additional architectures can opt in by removing their
TIF_RESTORE_SIGMASK defines.

Link: http://lkml.kernel.org/r/8a14321d64a28e40adfddc90e18a96c086a6d6f9.1468522723.git.luto@kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>	[powerpc]
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-02 19:35:23 -04:00
..
boards DeviceTree update for 4.8: 2016-07-30 11:32:01 -07:00
boot
cchips
configs arch/defconfig: remove CONFIG_RESOURCE_COUNTERS 2016-05-23 17:04:14 -07:00
drivers treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
include signal: consolidate {TS,TLF}_RESTORE_SIGMASK code 2016-08-02 19:35:23 -04:00
kernel sh/perf: Convert the hotplug notifiers to state machine callbacks 2016-07-14 09:34:39 +02:00
lib
lib64
math-emu
mm treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
oprofile
tools
Kconfig sh: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB 2016-06-08 09:55:20 +02:00
Kconfig.cpu
Kconfig.debug
Makefile