dm: use time_in_range() and time_after()

To be future-proof and for better readability the time comparisons are modified
to use time_in_range() and time_after() instead of plain, error-prone math.

Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 1e96d7889f51..2eca128a9d6a 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -11,6 +11,7 @@
 
 #include <linux/dm-io.h>
 #include <linux/dm-kcopyd.h>
+#include <linux/jiffies.h>
 #include <linux/init.h>
 #include <linux/mempool.h>
 #include <linux/module.h>
@@ -1547,8 +1548,8 @@ static void process_bio(struct cache *cache, struct prealloc *structs,
 
 static int need_commit_due_to_time(struct cache *cache)
 {
-        return jiffies < cache->last_commit_jiffies ||
-               jiffies > cache->last_commit_jiffies + COMMIT_PERIOD;
+        return !time_in_range(jiffies, cache->last_commit_jiffies,
+                              cache->last_commit_jiffies + COMMIT_PERIOD);
 }
 
 static int commit_if_needed(struct cache *cache)