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authorPaul Mundt <lethal@linux-sh.org>2011-01-06 18:24:07 +0900
committerPaul Mundt <lethal@linux-sh.org>2011-01-06 18:24:07 +0900
commitf862f904d357dc0d3612347a8dbabe6fae037fbb (patch)
treed7f5c2d5f85fd9e1cfc36beae904dc4f9cca04a3 /arch/tile/kernel/process.c
parent6f09e41d704fe0bc9157a5357480751d39361d01 (diff)
parent3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff)
downloadlinux-f862f904d357dc0d3612347a8dbabe6fae037fbb.tar.bz2
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Conflicts: arch/sh/kernel/cpu/sh2a/clock-sh7201.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/tile/kernel/process.c')
-rw-r--r--arch/tile/kernel/process.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 8430f45daea6..e90eb53173b0 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -212,6 +212,13 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
childregs->sp = sp; /* override with new user stack pointer */
/*
+ * If CLONE_SETTLS is set, set "tp" in the new task to "r4",
+ * which is passed in as arg #5 to sys_clone().
+ */
+ if (clone_flags & CLONE_SETTLS)
+ childregs->tp = regs->regs[4];
+
+ /*
* Copy the callee-saved registers from the passed pt_regs struct
* into the context-switch callee-saved registers area.
* This way when we start the interrupt-return sequence, the
@@ -539,6 +546,7 @@ struct task_struct *__sched _switch_to(struct task_struct *prev,
return __switch_to(prev, next, next_current_ksp0(next));
}
+/* Note there is an implicit fifth argument if (clone_flags & CLONE_SETTLS). */
SYSCALL_DEFINE5(clone, unsigned long, clone_flags, unsigned long, newsp,
void __user *, parent_tidptr, void __user *, child_tidptr,
struct pt_regs *, regs)