ktime: Get rid of ktime_equal()

No point in going through loops and hoops instead of just comparing the
values.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>

Author: KAGA-KOKO

fs/dlm/lock.c

@@ -1395,7 +1395,6 @@ static int nodeid_warned(int nodeid, int num_nodes, int *warned)
 void dlm_scan_waiters(struct dlm_ls *ls)
 {
 	struct dlm_lkb *lkb;
-	ktime_t zero = 0;
 	s64 us;
 	s64 debug_maxus = 0;
 	u32 debug_scanned = 0;
@@ -1409,7 +1408,7 @@ void dlm_scan_waiters(struct dlm_ls *ls)
 	mutex_lock(&ls->ls_waiters_mutex);
 
 	list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) {
-		if (ktime_equal(lkb->lkb_wait_time, zero))
+		if (!lkb->lkb_wait_time)
 			continue;
 
 		debug_scanned++;
@@ -1419,7 +1418,7 @@ void dlm_scan_waiters(struct dlm_ls *ls)
 		if (us < dlm_config.ci_waitwarn_us)
 			continue;
 
-		lkb->lkb_wait_time = zero;
+		lkb->lkb_wait_time = 0;
 
 		debug_expired++;
 		if (us > debug_maxus)

fs/nfs/flexfilelayout/flexfilelayout.c

@@ -623,7 +623,7 @@ nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror,
 	struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(mirror->layout);
 
 	nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now);
-	if (ktime_equal(mirror->start_time, 0))
+	if (!mirror->start_time)
 		mirror->start_time = now;
 	if (mirror->report_interval != 0)
 		report_interval = (s64)mirror->report_interval * 1000LL;

include/linux/ktime.h

@@ -96,21 +96,6 @@ static inline ktime_t timeval_to_ktime(struct timeval tv)
 /* Convert ktime_t to nanoseconds - NOP in the scalar storage format: */
 #define ktime_to_ns(kt)			(kt)
 
-
-/**
- * ktime_equal - Compares two ktime_t variables to see if they are equal
- * @cmp1:	comparable1
- * @cmp2:	comparable2
- *
- * Compare two ktime_t variables.
- *
- * Return: 1 if equal.
- */
-static inline int ktime_equal(const ktime_t cmp1, const ktime_t cmp2)
-{
-	return cmp1 == cmp2;
-}
-
 /**
  * ktime_compare - Compares two ktime_t variables for less, greater or equal
  * @cmp1:	comparable1

net/ipv6/mip6.c

@@ -191,7 +191,7 @@ static inline int mip6_report_rl_allow(ktime_t stamp,
 	int allow = 0;
 
 	spin_lock_bh(&mip6_report_rl.lock);
-	if (!ktime_equal(mip6_report_rl.stamp, stamp) ||
+	if (mip6_report_rl.stamp != stamp ||
 	    mip6_report_rl.iif != iif ||
 	    !ipv6_addr_equal(&mip6_report_rl.src, src) ||
 	    !ipv6_addr_equal(&mip6_report_rl.dst, dst)) {