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[MIPS] Rename MIPS sys_pipe syscall entry point to something MIPS-specific.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2008-07-20 13:16:46 +01:00
parent 4914ad4a9f
commit 8213bbf9c1
5 changed files with 12 additions and 5 deletions
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2
arch/mips/kernel/scall32-o32.S
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@ -354,7 +354,7 @@ einval: li v0, -EINVAL
sys sys_mkdir 2 sys sys_mkdir 2
sys sys_rmdir 1 /* 4040 */ sys sys_rmdir 1 /* 4040 */
sys sys_dup 1 sys sys_dup 1
sys sys_pipe 0 sys sysm_pipe 0
sys sys_times 1 sys sys_times 1
sys sys_ni_syscall 0 sys sys_ni_syscall 0
sys sys_brk 1 /* 4045 */ sys sys_brk 1 /* 4045 */

2
arch/mips/kernel/scall64-64.S
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@ -219,7 +219,7 @@ sys_call_table:
PTR sys_readv PTR sys_readv
PTR sys_writev PTR sys_writev
PTR sys_access /* 5020 */ PTR sys_access /* 5020 */
PTR sys_pipe PTR sysm_pipe
PTR sys_select PTR sys_select
PTR sys_sched_yield PTR sys_sched_yield
PTR sys_mremap PTR sys_mremap

2
arch/mips/kernel/scall64-n32.S
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@ -141,7 +141,7 @@ EXPORT(sysn32_call_table)
PTR compat_sys_readv PTR compat_sys_readv
PTR compat_sys_writev PTR compat_sys_writev
PTR sys_access /* 6020 */ PTR sys_access /* 6020 */
PTR sys_pipe PTR sysm_pipe
PTR compat_sys_select PTR compat_sys_select
PTR sys_sched_yield PTR sys_sched_yield
PTR sys_mremap PTR sys_mremap

2
arch/mips/kernel/scall64-o32.S
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@ -247,7 +247,7 @@ sys_call_table:
PTR sys_mkdir PTR sys_mkdir
PTR sys_rmdir /* 4040 */ PTR sys_rmdir /* 4040 */
PTR sys_dup PTR sys_dup
PTR sys_pipe PTR sysm_pipe
PTR compat_sys_times PTR compat_sys_times
PTR sys_ni_syscall PTR sys_ni_syscall
PTR sys_brk /* 4045 */ PTR sys_brk /* 4045 */

9
arch/mips/kernel/syscall.c
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@ -40,7 +40,14 @@
#include <asm/sysmips.h> #include <asm/sysmips.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
asmlinkage int sys_pipe(nabi_no_regargs volatile struct pt_regs regs) /*
* For historic reasons the pipe(2) syscall on MIPS has an unusual calling
* convention. It returns results in registers $v0 / $v1 which means there
* is no need for it to do verify the validity of a userspace pointer
* argument. Historically that used to be expensive in Linux. These days
* the performance advantage is negligible.
*/
asmlinkage int sysm_pipe(nabi_no_regargs volatile struct pt_regs regs)
{ {
int fd[2]; int fd[2];
int error, res; int error, res;