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| author |   Chris Metcalf <cmetcalf@tilera.com> | 2012-10-23 13:30:54 -0400 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2012-10-23 16:23:58 -0400 |
| commit | 6b14e4198c729b748a7f6d22059e6a101d2b241a (patch) | |
| tree | 77668782763f74aec995899e919231e81a71d56a /arch/tile/kernel/process.c | |
| parent | tile: switch to generic sys_execve() (diff) | |
| download | linux-dev-6b14e4198c729b748a7f6d22059e6a101d2b241a.tar.xz linux-dev-6b14e4198c729b748a7f6d22059e6a101d2b241a.zip | |
arch/tile: eliminate pt_regs trampolines for syscalls
Using the new current_pt_regs() model, we can remove some trampolines
from assembly code and call directly to the C syscall implementations.
rt_sigreturn() and clone() still need some assembly wrapping, but no
longer are passed a pt_regs pointer. sigaltstack() and the
tilepro-specific cmpxchg_badaddr() syscalls are now just straight C.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/process.c')
| -rw-r--r-- | arch/tile/kernel/process.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 58f8fd1f0bc2..6e7fb4e41f1c 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -584,10 +584,10 @@ int do_work_pending(struct pt_regs *regs, u32 thread_info_flags) } /* 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) +SYSCALL_DEFINE4(clone, unsigned long, clone_flags, unsigned long, newsp, + void __user *, parent_tidptr, void __user *, child_tidptr) { + struct pt_regs *regs = current_pt_regs(); if (!newsp) newsp = regs->sp; return do_fork(clone_flags, newsp, regs, 0, |