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authorChristoph Hellwig <[email protected]>2010-03-10 15:21:18 -0800
committerLinus Torvalds <[email protected]>2010-03-12 15:52:32 -0800
commitbaed7fc9b580bd3fb8252ff1d9b36eaf1f86b670 (patch)
tree38f23cd9888b92de3f73ed1f4ce48cd83e940e0e /arch/sparc/kernel/systbls.h
parenta4679373cf4ee0e7792dc56205365732b725c2c1 (diff)
Add generic sys_ipc wrapper
Add a generic implementation of the ipc demultiplexer syscall. Except for s390 and sparc64 all implementations of the sys_ipc are nearly identical. There are slight differences in the types of the parameters, where mips and powerpc as the only 64-bit architectures with sys_ipc use unsigned long for the "third" argument as it gets casted to a pointer later, while it traditionally is an "int" like most other paramters. frv goes even further and uses unsigned long for all parameters execept for "ptr" which is a pointer type everywhere. The change from int to unsigned long for "third" and back to "int" for the others on frv should be fine due to the in-register calling conventions for syscalls (we already had a similar issue with the generic sys_ptrace), but I'd prefer to have the arch maintainers looks over this in details. Except for that h8300, m68k and m68knommu lack an impplementation of the semtimedop sub call which this patch adds, and various architectures have gets used - at least on i386 it seems superflous as the compat code on x86-64 and ia64 doesn't even bother to implement it. [[email protected]: add sys_ipc to sys_ni.c] Signed-off-by: Christoph Hellwig <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Hirokazu Takata <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Reviewed-by: H. Peter Anvin <[email protected]> Cc: Al Viro <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: James Morris <[email protected]> Cc: Andreas Schwab <[email protected]> Acked-by: Jesper Nilsson <[email protected]> Acked-by: Russell King <[email protected]> Acked-by: David Howells <[email protected]> Acked-by: Kyle McMartin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'arch/sparc/kernel/systbls.h')
-rw-r--r--arch/sparc/kernel/systbls.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 68312fe8da74..2c331c37e748 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -10,7 +10,7 @@ struct new_utsname;
extern asmlinkage unsigned long sys_getpagesize(void);
extern asmlinkage long sparc_pipe(struct pt_regs *regs);
-extern asmlinkage long sys_ipc(unsigned int call, int first,
+extern asmlinkage long sys_sparc_ipc(unsigned int call, int first,
unsigned long second,
unsigned long third,
void __user *ptr, long fifth);