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Merge branches 'x86-cleanups-for-linus', 'x86-vmware-for-linus', 'x86-mtrr-for-linus', 'x86-apic-for-linus', 'x86-fpu-for-linus' and 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Clean up arch/x86/kernel/cpu/mtrr/cleanup.c: use ";" not "," to terminate statements

* 'x86-vmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, vmware: Preset lpj values when on VMware.

* 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, mtrr: Use stop machine context to rendezvous all the cpu's

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/apic/es7000_32: Remove unused variable

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Avoid unnecessary __clear_user() and xrstor in signal handling

* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, vdso: Unmap vdso pages
This commit is contained in:
Linus Torvalds
2010-08-06 16:22:59 -07:00
parent ce06ea8339 b2691085d1 9f242dc10e 68f202e4e8 5bbd4a336c 8e221b6db4 be783a4721
commit 75cb5fdce2
9 changed files with 83 additions and 28 deletions
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12
arch/x86/kernel/xsave.c
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@@ -92,14 +92,6 @@ int save_i387_xstate(void __user *buf)
return 0;
if (task_thread_info(tsk)->status & TS_USEDFPU) {
/*
* Start with clearing the user buffer. This will present a
* clean context for the bytes not touched by the fxsave/xsave.
*/
err = __clear_user(buf, sig_xstate_size);
if (err)
return err;
if (use_xsave())
err = xsave_user(buf);
else
@@ -185,8 +177,8 @@ static int restore_user_xstate(void __user *buf)
* init the state skipped by the user.
*/
mask = pcntxt_mask & ~mask;
xrstor_state(init_xstate_buf, mask);
if (unlikely(mask))
xrstor_state(init_xstate_buf, mask);
return 0;