Daniel Walker wrote:
PICK_FUNCTION() is similar to the other PICK_OP style macros, and was
created to replace them all. I used variable argument macros to handle
PICK_FUNC_2ARG/PICK_FUNC_1ARG. Otherwise the marcos are similar to the
original macros used for semaphores. The entire system is used to do a
compile time switch between two different locking APIs. For example,
real spinlocks (raw_spinlock_t) and mutexes (or sleeping spinlocks).
This new macro replaces all the duplication from lock type to lock type.
The result of this patch, and the next two, is a fairly nice simplification,
and consolidation. Although the seqlock changes are larger than the originals
I think over all the patchset is worth while.
Incorporated peterz's suggestion to not require TYPE_EQUAL() to only
use pointers.
How come this is cc'ed to lkml? Is it something that is relevant to
the mainline kernel... or?
--
SUSE Labs, Novell Inc.
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