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authorAlex Shi <alex.shi@intel.com>2012-05-11 11:35:27 +0400
committerTejun Heo <tj@kernel.org>2012-05-15 01:15:31 +0400
commitc6ae41e7d469f00d9c92a2b2887c7235d121c009 (patch)
treeb16d65641c1e99a622ab460aee9f5b13e1948a25 /arch/x86/kernel/process_32.c
parent19e8d69c543f8f62050099892b138e981db952cc (diff)
downloadlinux-c6ae41e7d469f00d9c92a2b2887c7235d121c009.tar.xz
x86: replace percpu_xxx funcs with this_cpu_xxx
Since percpu_xxx() serial functions are duplicated with this_cpu_xxx(). Removing percpu_xxx() definition and replacing them by this_cpu_xxx() in code. There is no function change in this patch, just preparation for later percpu_xxx serial function removing. On x86 machine the this_cpu_xxx() serial functions are same as __this_cpu_xxx() without no unnecessary premmpt enable/disable. Thanks for Stephen Rothwell, he found and fixed a i386 build error in the patch. Also thanks for Andrew Morton, he kept updating the patchset in Linus' tree. Signed-off-by: Alex Shi <alex.shi@intel.com> Acked-by: Christoph Lameter <cl@gentwo.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process_32.c')
-rw-r--r--arch/x86/kernel/process_32.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index ae6847303e26..01d8d40ccaf6 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -302,7 +302,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
switch_fpu_finish(next_p, fpu);
- percpu_write(current_task, next_p);
+ this_cpu_write(current_task, next_p);
return prev_p;
}