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Subject[PATCH] delayacct: cleanup flags in struct task_delay_info and functions use it
Date
From: Yang Yang <yang.yang29@zte.com.cn>

Flags in struct task_delay_info is used to distinguish the difference
between swapin and blkio delay acountings. But after patch "delayacct:
support swapin delay accounting for swapping without blkio", there is
no need to do that since swapin and blkio delay accounting use it's
own functions.

Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
include/linux/delayacct.h | 17 -----------------
1 file changed, 17 deletions(-)

diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index c675cfb6437e..435c3654a0ff 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -12,7 +12,6 @@
#ifdef CONFIG_TASK_DELAY_ACCT
struct task_delay_info {
raw_spinlock_t lock;
- unsigned int flags; /* Private per-task flags */

/* For each stat XXX, add following, aligned appropriately
*
@@ -74,18 +73,6 @@ extern void __delayacct_thrashing_end(void);
extern void __delayacct_swapin_start(void);
extern void __delayacct_swapin_end(void);

-static inline void delayacct_set_flag(struct task_struct *p, int flag)
-{
- if (p->delays)
- p->delays->flags |= flag;
-}
-
-static inline void delayacct_clear_flag(struct task_struct *p, int flag)
-{
- if (p->delays)
- p->delays->flags &= ~flag;
-}
-
static inline void delayacct_tsk_init(struct task_struct *tsk)
{
/* reinitialize in case parent's non-null pointer was dup'ed*/
@@ -184,10 +171,6 @@ static inline void delayacct_swapin_end(void)
}

#else
-static inline void delayacct_set_flag(struct task_struct *p, int flag)
-{}
-static inline void delayacct_clear_flag(struct task_struct *p, int flag)
-{}
static inline void delayacct_init(void)
{}
static inline void delayacct_tsk_init(struct task_struct *tsk)
--
2.25.1
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