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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-13 09:49:04 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-13 09:49:04 -0700
commitdcf397f037f52add9945eced57ca300ab6a4413c (patch)
treee78767d164589e9097a54bf564b072fb01f80820 /arch/sh/kernel/process.c
parent6faf035cf9fdd8283c2b2b2c34b76b5445ec6fc4 (diff)
parent68ee0f9c98a42e36f9eab29155b2bb0e7e409ac6 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (124 commits) sh: allow building for both r2d boards in same binary. sh: fix r2d board detection sh: Discard .exit.text/.exit.data at runtime. sh: Fix up some section alignments in linker script. sh: Fix SH-4 DMAC CHCR masking. sh: Rip out left-over nommu cond syscall cruft. sh: Make kgdb i-cache flushing less inept. sh: kgdb section mismatches and tidying. sh: cleanup struct irqaction initializers. sh: early_printk tidying. video: pvr2fb: Add TV (RGB) support to Dreamcast PVR driver. sh: Conditionalize gUSA support. sh: Follow gUSA preempt changes in __switch_to(). sh: Tidy up gUSA preempt handling. sh: __copy_user() optimizations for small copies. sh: clkfwk: Support multi-level clock propagation. sh: Fix URAM start address on SH7785. sh: Use boot_cpu_data for CPU probe. sh: Support extended mode TLB on SH-X3. sh: Bump MAX_ACTIVE_REGIONS for SH7785. ...
Diffstat (limited to 'arch/sh/kernel/process.c')
-rw-r--r--arch/sh/kernel/process.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 15ae322dbd7..b4469992d6b 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -19,6 +19,7 @@
#include <linux/tick.h>
#include <linux/reboot.h>
#include <linux/fs.h>
+#include <linux/preempt.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
@@ -349,12 +350,11 @@ struct task_struct *__switch_to(struct task_struct *prev,
unlazy_fpu(prev, task_pt_regs(prev));
#endif
-#ifdef CONFIG_PREEMPT
+#if defined(CONFIG_GUSA) && defined(CONFIG_PREEMPT)
{
- unsigned long flags;
struct pt_regs *regs;
- local_irq_save(flags);
+ preempt_disable();
regs = task_pt_regs(prev);
if (user_mode(regs) && regs->regs[15] >= 0xc0000000) {
int offset = (int)regs->regs[15];
@@ -365,7 +365,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
/* Go to rewind point */
regs->pc = regs->regs[0] + offset;
}
- local_irq_restore(flags);
+ preempt_enable_no_resched();
}
#endif