]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
signal: consolidate {TS,TLF}_RESTORE_SIGMASK code
authorAndy Lutomirski <luto@kernel.org>
Tue, 2 Aug 2016 21:05:36 +0000 (14:05 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 2 Aug 2016 23:35:23 +0000 (19:35 -0400)
commit7e7814180b334dff97ef8f56c7c40c277ad4531c
tree8f2f0ce6b3aca6dcce64a46047c42df63f43a7e9
parent0a11b9aae49adf1f952427ef1a1d9e793dd6ffb6
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>
arch/alpha/include/asm/thread_info.h
arch/ia64/include/asm/thread_info.h
arch/microblaze/include/asm/thread_info.h
arch/powerpc/include/asm/thread_info.h
arch/sh/include/asm/thread_info.h
arch/sparc/include/asm/thread_info_64.h
arch/tile/include/asm/thread_info.h
arch/x86/include/asm/thread_info.h
include/linux/sched.h
include/linux/thread_info.h