linux-kernel - [PATCH v2 02/22] drm/i915/selftests: Use vma_lookup() in __igt

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Message-ID: <20210521174745.2219620-3-Liam.Howlett@Oracle.com>
Date:   Fri, 21 May 2021 17:47:57 +0000
From:   Liam Howlett <liam.howlett@...cle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Davidlohr Bueso <dbueso@...e.de>,
        Liam Howlett <liam.howlett@...cle.com>
Subject: [PATCH v2 02/22] drm/i915/selftests: Use vma_lookup() in __igt_mmap()

vma_lookup() will look up the vma at a specific address.  find_vma()
will start the search for a specific address and continue upwards.  This
fixes an issue with the selftest as the returned vma may not be the
newly created vma, but simply the vma at a higher address.

Fixes: 6fedafacae1b (drm/i915/selftests: Wrap vm_mmap() around GEM
objects
Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
Reviewed-by: Laurent Dufour <ldufour@...ux.ibm.com>
Acked-by: David Hildenbrand <david@...hat.com>
Acked-by: Davidlohr Bueso <dbueso@...e.de>
---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 5cf6df49c333..35c15ef1327d 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -871,7 +871,7 @@ static int __igt_mmap(struct drm_i915_private *i915,
 
 	pr_debug("igt_mmap(%s, %d) @ %lx\n", obj->mm.region->name, type, addr);
 
-	area = find_vma(current->mm, addr);
+	area = vma_lookup(current->mm, addr);
 	if (!area) {
 		pr_err("%s: Did not create a vm_area_struct for the mmap\n",
 		       obj->mm.region->name);
-- 
2.30.2