linux-kernel - [PATCH] gpu: drm: i915: use time_after

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Message-Id: <1644481802-14578-1-git-send-email-wangqing@vivo.com>
Date:   Thu, 10 Feb 2022 00:30:01 -0800
From:   Qing Wang <wangqing@...o.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] gpu: drm: i915: use time_after_eq() instead of jiffies judgment

From: Wang Qing <wangqing@...o.com>

It is better use time_xxx() directly instead of jiffies judgment
for understanding.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c
index 9db3dcb..b289abb
--- a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c
@@ -56,7 +56,7 @@ static bool pool_free_older_than(struct intel_gt_buffer_pool *pool, long keep)
 				node = list_entry(pos, typeof(*node), link);
 
 				age = READ_ONCE(node->age);
-				if (!age || jiffies - age < keep)
+				if (!age || time_before(jiffies, age + keep))
 					break;
 
 				/* Check we are the first to claim this node */
-- 
2.7.4