"Christopher R. Bowman" <c...@chrisbowman.com> writes:
>
> I can't speak authoritatively since I don't know specifically what
> SYSCALL_LOCK is, but if it is what is often referred to on this list
> as the Giant Kernel Lock(tm) then the following should generally
> apply.
>
You're right. The SYSCALL_LOCK is the same as the giant lock. The name
kinda misled me to assume that it's a different lock.
i386/i386/lock.h:
/*
* Some handy macros to allow logical organization and
* convenient reassignment of various locks.
*/
#define FPU_LOCK call _get_fpu_lock
#define ALIGN_LOCK call _get_align_lock
#define SYSCALL_LOCK call _get_syscall_lock
#define ALTSYSCALL_LOCK call _get_altsyscall_lock
All of the above routines seem to be identical. But the code is
duplicated for some reason.
Also, it might be beneficial to define these locks in a header file
and inline them, instead of generating a call for each simple_lock.
-Arun
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