liangbowen wrote:
maybe you've misunderstood my meaning.  I mean the whole <asm/
semaphore.h> header file has only  4 lines of code in total:
#ifndef I386_SEMAPHORE_H
#define I386_SEMAPHORE_H
#include <linux/linkage.h>
#endif

it's supposed to have more codes than that. like
struct semaphore {
        int count;
        int waking;
        int lock ;                      /* to make waking testing atomic */
        struct wait_queue * wait;
};
and the down(), up() functions.

but I can't see any of those codes, not even the #ifdef __KERNEL__
macro.


It does in the kernel version of that header. The userspace version of that header has everything inside #ifdef __KERNEL__ stripped out.

--
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from [EMAIL PROTECTED]
Home Page: http://www.roberthancock.com/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to