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>
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@ -11,6 +11,7 @@
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#include <linux/device-mapper.h>
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#include <linux/dm-io.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include <linux/vmalloc.h>
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#include <linux/shrinker.h>
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#include <linux/module.h>
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@ -1739,7 +1740,7 @@ static unsigned get_max_age_hz(void)
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static bool older_than(struct dm_buffer *b, unsigned long age_hz)
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{
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return (jiffies - b->last_accessed) >= age_hz;
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return time_after_eq(jiffies, b->last_accessed + age_hz);
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}
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static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
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