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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 10:59:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-23 10:59:07 -0700
commitec0d7f18ab7b5097d7c0c8f3d909ca1031b9d5cd (patch)
tree7d62c924592145f819ecaa5d60460a05a10dfdbd /arch/sh/include
parent269af9a1a08d368b46d72e74126564d04c354f7e (diff)
parent1dcc8d7ba235a316a056f993e88f0d18b92c60d9 (diff)
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull fpu state cleanups from Ingo Molnar: "This tree streamlines further aspects of FPU handling by eliminating the prepare_to_copy() complication and moving that logic to arch_dup_task_struct(). It also fixes the FPU dumps in threaded core dumps, removes and old (and now invalid) assumption plus micro-optimizes the exit path by avoiding an FPU save for dead tasks." Fixed up trivial add-add conflict in arch/sh/kernel/process.c that came in because we now do the FPU handling in arch_dup_task_struct() rather than the legacy (and now gone) prepare_to_copy(). * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, fpu: drop the fpu state during thread exit x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state() coredump: ensure the fpu state is flushed for proper multi-threaded core dump fork: move the real prepare_to_copy() users to arch_dup_task_struct()
Diffstat (limited to 'arch/sh/include')
-rw-r--r--arch/sh/include/asm/processor_32.h3
-rw-r--r--arch/sh/include/asm/processor_64.h1
2 files changed, 0 insertions, 4 deletions
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index 900f8d72ffe..b6311fd2d06 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -126,9 +126,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
-/* Prepare to copy thread state - unlazy all lazy status */
-void prepare_to_copy(struct task_struct *tsk);
-
/*
* create a kernel thread without removing it from tasklists
*/
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
index 740e2687659..cd6029fb2c0 100644
--- a/arch/sh/include/asm/processor_64.h
+++ b/arch/sh/include/asm/processor_64.h
@@ -169,7 +169,6 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
#define copy_segments(p, mm) do { } while (0)
#define release_segments(mm) do { } while (0)
#define forget_segments() do { } while (0)
-#define prepare_to_copy(tsk) do { } while (0)
/*
* FPU lazy state save handling.
*/