[merged] kernel-delayacctc-remove-redundant-checking-in-__delayacct_add_tsk.patch removed from -mm tree

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Subject: [merged] kernel-delayacctc-remove-redundant-checking-in-__delayacct_add_tsk.patch removed from -mm tree
To: gang.chen@xxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 13 Nov 2013 12:40:00 -0800


The patch titled
     Subject: kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()
has been removed from the -mm tree.  Its filename was
     kernel-delayacctc-remove-redundant-checking-in-__delayacct_add_tsk.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Chen Gang <gang.chen@xxxxxxxxxxx>
Subject: kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()

The wrapper function delayacct_add_tsk() already checked 'tsk->delays',
and __delayacct_add_tsk() has no another direct callers, so can remove the
redundancy checking code.

And the label 'done' is also useless, so remove it, too.

Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 kernel/delayacct.c |    7 -------
 1 file changed, 7 deletions(-)

diff -puN kernel/delayacct.c~kernel-delayacctc-remove-redundant-checking-in-__delayacct_add_tsk kernel/delayacct.c
--- a/kernel/delayacct.c~kernel-delayacctc-remove-redundant-checking-in-__delayacct_add_tsk
+++ a/kernel/delayacct.c
@@ -108,12 +108,6 @@ int __delayacct_add_tsk(struct taskstats
 	struct timespec ts;
 	cputime_t utime, stime, stimescaled, utimescaled;
 
-	/* Though tsk->delays accessed later, early exit avoids
-	 * unnecessary returning of other data
-	 */
-	if (!tsk->delays)
-		goto done;
-
 	tmp = (s64)d->cpu_run_real_total;
 	task_cputime(tsk, &utime, &stime);
 	cputime_to_timespec(utime + stime, &ts);
@@ -158,7 +152,6 @@ int __delayacct_add_tsk(struct taskstats
 	d->freepages_count += tsk->delays->freepages_count;
 	spin_unlock_irqrestore(&tsk->delays->lock, flags);
 
-done:
 	return 0;
 }
 
_

Patches currently in -mm which might be from gang.chen@xxxxxxxxxxx are

origin.patch
kernel-kexecc-use-vscnprintf-instead-of-vsnprintf-in-vmcoreinfo_append_str.patch
linux-next.patch

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