+ md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch added to -mm tree

+ md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: md: use time_is_before_eq_jiffies() instead of open coding it
has been added to the -mm tree.  Its filename is
     md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch

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------------------------------------------------------
From: Wang Qing <wangqing@vivo.com>
Subject: md: use time_is_before_eq_jiffies() instead of open coding it

Use the helper function time_is_{before,after}_jiffies() to improve code
readability.

Link: https://lkml.kernel.org/r/1650621172-66967-7-git-send-email-wangqing@vivo.com
Signed-off-by: Wang Qing <wangqing@vivo.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/md/dm-writecache.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-writecache.c~md-use-time_is_before_eq_jiffies-instead-of-open-coding-it
+++ a/drivers/md/dm-writecache.c
@@ -16,6 +16,7 @@
 #include <linux/pfn_t.h>
 #include <linux/libnvdimm.h>
 #include <linux/delay.h>
+#include <linux/jiffies.h>
 #include "dm-io-tracker.h"
 
 #define DM_MSG_PREFIX "writecache"
@@ -1971,8 +1972,8 @@ restart:
 	while (!list_empty(&wc->lru) &&
 	       (wc->writeback_all ||
 		wc->freelist_size + wc->writeback_size <= wc->freelist_low_watermark ||
-		(jiffies - container_of(wc->lru.prev, struct wc_entry, lru)->age >=
-		 wc->max_age - wc->max_age / MAX_AGE_DIV))) {
+		time_is_before_eq_jiffies(container_of(wc->lru.prev, struct wc_entry,
+		lru)->age + wc->max_age - wc->max_age / MAX_AGE_DIV)) {
 
 		n_walked++;
 		if (unlikely(n_walked > WRITEBACK_LATENCY) &&
_

Patches currently in -mm which might be from wangqing@vivo.com are

block-xen-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch
gpu-drm-i915-use-time_is_after_jiffies-instead-of-open-coding-it.patch
gpu-drm-radeon-use-time_is_before_jiffies-instead-of-open-coding-it.patch
hid-use-time_is_after_jiffies-instead-of-open-coding-it.patch
md-use-time_is_before_eq_jiffies-instead-of-open-coding-it.patch
net-wireless-marvell-use-time_is_before_jiffies-instead-of-open-coding-it.patch
scsi-bfa-use-time_is_before_jiffies-instead-of-open-coding-it.patch
timekeeping-use-time_is_before_jiffies-instead-of-open-coding-it.patch
net-decnet-use-time_is_before_jiffies-instead-of-open-coding-it.patch