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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/sys.c | |
| parent | 530550651fdfd548d25b6bd5ff4607803540508b (diff) | |
| download | blackbird-op-linux-6b14e4198c729b748a7f6d22059e6a101d2b241a.tar.gz blackbird-op-linux-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/sys.c')
| -rw-r--r-- | arch/tile/kernel/sys.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/tile/kernel/sys.c b/arch/tile/kernel/sys.c index 359e76f68838..02ff5c0ef775 100644 --- a/arch/tile/kernel/sys.c +++ b/arch/tile/kernel/sys.c @@ -106,13 +106,11 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, #define sys_readahead sys32_readahead #endif -/* Call the trampolines to manage pt_regs where necessary. */ -#define sys_sigaltstack _sys_sigaltstack +/* Call the assembly trampolines where necessary. */ +#undef sys_rt_sigreturn #define sys_rt_sigreturn _sys_rt_sigreturn +#undef sys_clone #define sys_clone _sys_clone -#ifndef __tilegx__ -#define sys_cmpxchg_badaddr _sys_cmpxchg_badaddr -#endif /* * Note that we can't include <linux/unistd.h> here since the header |
