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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-03 22:55:21 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-03 22:55:21 +0000 |
| commit | 04228460a3ded723b2da09141c76c45ddd712caf (patch) | |
| tree | db7b9143b150ead1e9fec10760a1d5ff4045a5e7 /arch/tile/kernel/process.c | |
| parent | 7c0ab43e6ab09d72dc8dbac2521b2f819ccc4026 (diff) | |
| parent | 24c78557741395e038e83f25367cf2bfd7f582b8 (diff) | |
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
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 8430f45daea..e90eb53173b 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) |