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| author | Tony Lindgren <tony@atomide.com> | 2010-12-21 16:53:00 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-12-21 16:53:00 -0800 |
| commit | bb3613aa34a81a5e2f1227ccdb801fde04a7da10 (patch) | |
| tree | bb79c15d5da41113bd7b83d9e74fbfc4a1bf8569 /arch/tile/kernel/process.c | |
| parent | 6971071cdda79cad5f53ba390e466d696e7e9006 (diff) | |
| parent | bb1c9034b3ce7f29d3d178a87b42b767611d6574 (diff) | |
Merge branch 'pm-next' of ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
Diffstat (limited to 'arch/tile/kernel/process.c')
| -rw-r--r-- | arch/tile/kernel/process.c | 8 |
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) |