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| author | Asaf Vertz <asaf.vertz@tandemg.com> | 2015-01-06 16:44:15 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-02-09 21:06:48 +0300 |
| commit | f495339c441b9a69c43327f71c23ffa7632e3020 (patch) | |
| tree | 7a87c692342e825a2f093c6f574212bf30cd798f | |
| parent | 0f30af98cbb111cebd99f09cb7b8cc8c9351c0b3 (diff) | |
| download | linux-f495339c441b9a69c43327f71c23ffa7632e3020.tar.xz | |
dm bufio: fix time comparison to use time_after_eq()
To be future-proof and for better readability the time comparison
is modified to use time_after_eq() instead of plain, error-prone math.
Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-bufio.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index c33b49792b87..86dbbc737402 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -11,6 +11,7 @@ #include <linux/device-mapper.h> #include <linux/dm-io.h> #include <linux/slab.h> +#include <linux/jiffies.h> #include <linux/vmalloc.h> #include <linux/shrinker.h> #include <linux/module.h> @@ -1739,7 +1740,7 @@ static unsigned get_max_age_hz(void) static bool older_than(struct dm_buffer *b, unsigned long age_hz) { - return (jiffies - b->last_accessed) >= age_hz; + return time_after_eq(jiffies, b->last_accessed + age_hz); } static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz) |