[PATCH 02/10] drm/ttm: return immediately in case of a signal

From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: Marek.Olsak@amd.com, David1.Zhou@amd.com, Prike.Liang@amd.com,
	dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org
Subject: [PATCH 02/10] drm/ttm: return immediately in case of a signal
Date: Wed, 22 May 2019 14:59:39 +0200	[thread overview]
Message-ID: <20190522125947.4592-2-christian.koenig@amd.com> (raw)
In-Reply-To: <20190522125947.4592-1-christian.koenig@amd.com>

When a signal arrives we should return immediately for
handling it and not try other placements first.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 2845fceb2fbd..4336893cb35e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -978,7 +978,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 	uint32_t cur_flags = 0;
 	bool type_found = false;
 	bool type_ok = false;
-	bool has_erestartsys = false;
 	int i, ret;
 
 	ret = reservation_object_reserve_shared(bo->resv, 1);
@@ -1069,8 +1068,8 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 			mem->placement = cur_flags;
 			return 0;
 		}
-		if (ret == -ERESTARTSYS)
-			has_erestartsys = true;
+		if (ret && ret != -EBUSY)
+			return ret;
 	}
 
 	if (!type_found) {
@@ -1078,7 +1077,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 		return -EINVAL;
 	}
 
-	return (has_erestartsys) ? -ERESTARTSYS : -ENOMEM;
+	return -ENOMEM;
 }
 EXPORT_SYMBOL(ttm_bo_mem_space);
 
-- 
2.17.1

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