Re: [PATCH] lib: Export interval_tree

From: Michel Lespinasse
Date: Sun Jan 26 2014 - 07:35:34 EST


On Sun, Jan 26, 2014 at 4:24 AM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxx>
> Cc: Michel Lespinasse <walken@xxxxxxxxxx>
> Cc: Rik van Riel <riel@xxxxxxxxxx>
> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

Reviewed-by: Michel Lespinasse <walken@xxxxxxxxxx>

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.
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