• Andy Lutomirski's avatar
    signal: consolidate {TS,TLF}_RESTORE_SIGMASK code · 7e781418
    Andy Lutomirski authored
    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.orgSigned-off-by: default avatarAndy 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: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    7e781418
thread_info_64.h 7.71 KB