[Intel-gfx] [PATCH] lib: Export interval_tree

[Michel Lespinasse]

On Sun, Jan 26, 2014 at 4:24 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> lib/interval_tree.c provides a simple interface for an interval-tree
> (an augmented red-black tree) but is only built when testing the generic
> macros for building interval-trees. For drivers with modest needs,
> export the simple interval-tree library as is.
>
> v2: Lots of help from Michel Lespinasse to only compile the code
>     as required:
>     - make INTERVAL_TREE a config option
>     - make INTERVAL_TREE_TEST select the library functions
>       and sanitize the filenames & Makefile
>     - prepare interval_tree for being built as a module if required
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Michel Lespinasse <walken at google.com>
> Cc: Rik van Riel <riel at redhat.com>
> Cc: Peter Zijlstra <a.p.zijlstra at chello.nl>
> Cc: Andrea Arcangeli <aarcange at redhat.com>
> Cc: David Woodhouse <dwmw2 at infradead.org>
> Cc: Andrew Morton <akpm at linux-foundation.org>

Reviewed-by: Michel Lespinasse <walken at google.com>

Note for other reviewers, the lib/interval_tree_test.c is a straight
rename of the prior lib/interval_tree_test_main.c file.

> Note for maintainers, this is being proposed for use by i915.ko, so it
> may make the most sense to merge it via the drm/i915 tree in the next
> cycle.

Sounds fine to me, unless we get any other use cases before then.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.