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From: Ingo Molnar <mingo@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dave Hansen <dave@sr71.net>, Denys Vlasenko <dvlasenk@redhat.com>,
	Brian Gerst <brgerst@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Oleg Nesterov <oleg@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 0/2] x86/fpu: Fix FPU context sizing boot regression, introduce dynamic task_struct
Date: Fri, 17 Jul 2015 12:28:10 +0200	[thread overview]
Message-ID: <1437128892-9831-1-git-send-email-mingo@kernel.org> (raw)

This series builds on top of Dave Hansen's initial patch that introduced
dynamic task_struct sizing.

The second patch improves the dynamic allocation to not impact non-x86 architectures,
and to make it a bit faster on x86.

( I kept the structure layout build checks in x86 code for the time being,
  because some of the cross-builds failed with the generic check and I didn't
  want to introduce a bigger cross section for any failures. And it's not like
  we'll apply generic sched.h changes without testing x86. )

Thanks,

    Ingo

==========================>

Dave Hansen (1):
  x86/fpu, fork: Dynamically allocate 'struct fpu'

Ingo Molnar (1):
  x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and
    use it on x86

 arch/Kconfig                     |  4 ++++
 arch/x86/Kconfig                 |  1 +
 arch/x86/include/asm/fpu/types.h | 72 ++++++++++++++++++++++++++++++++----------------------------
 arch/x86/include/asm/processor.h | 10 ++++++---
 arch/x86/kernel/fpu/init.c       | 40 +++++++++++++++++++++++++++++++++
 arch/x86/kernel/process.c        |  2 +-
 fs/proc/kcore.c                  |  4 ++--
 include/linux/sched.h            | 16 ++++++++++++--
 kernel/fork.c                    |  7 +++++-
 9 files changed, 113 insertions(+), 43 deletions(-)

-- 
2.1.4


             reply	other threads:[~2015-07-17 10:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-17 10:28 Ingo Molnar [this message]
2015-07-17 10:28 ` [PATCH 1/2] x86/fpu, fork: Dynamically allocate 'struct fpu' Ingo Molnar
2015-07-17 19:23   ` Ingo Molnar
2015-07-17 20:30     ` Dave Hansen
2015-07-18  1:45       ` Ingo Molnar
2015-07-18  3:25   ` [tip:x86/urgent] x86/fpu, sched: Dynamically allocate 'struct fpu ' tip-bot for Dave Hansen
2015-07-17 10:28 ` [PATCH 2/2] x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86 Ingo Molnar
2015-07-17 17:02   ` Andy Lutomirski
2015-07-18  3:26   ` [tip:x86/urgent] " tip-bot for Ingo Molnar

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