Re: Robust Futex update

From: Khem Raj
Date: Fri Oct 14 2005 - 12:42:05 EST

Hi Ingo

As we pass same flags from glibc to kernel we thought it will be good to have defines in one place to avoid going out of sync in future.
glibc already has dependency on kernel headers. So were looking for ways to fix futex.h in kernel so that glibc can use it. But if it is not feasible then we can define these flags inside glibc headers. Only additional burden will be that these headers will be required to be synced whenever there is any change pertaining to them(mostly the defines.)



Ingo Molnar wrote:

* David Singleton <dsingleton@xxxxxxxxxx> wrote:

Index: linux-2.6.13/include/linux/futex.h
--- linux-2.6.13.orig/include/linux/futex.h
+++ linux-2.6.13/include/linux/futex.h
@@ -1,8 +1,6 @@
#ifndef _LINUX_FUTEX_H
#define _LINUX_FUTEX_H

-#include <linux/fs.h>
/* Second argument to futex syscall */

this chunk broke the build, so i added the #include back. Really, the robust mutex glibc patches should _NOT_ automatically include the kernel's futex.h file. If they do so and rely on an installed kernel-headers package then they are broken. Just copy the file into the glibc tree and remove the #include line.



robustmutexes mailing list

Khem Raj <kraj@xxxxxxxxxx>
MontaVista Software, Inc.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at