提交 e014ff8d 编写于 作者: O Oleg Nesterov 提交者: Jens Axboe

[PATCH] uninline ioprio_best()

Saves 376 bytes (5 callers) for me.
Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: NJens Axboe <axboe@suse.de>
上级 9f83e45e
...@@ -140,6 +140,29 @@ static int get_task_ioprio(struct task_struct *p) ...@@ -140,6 +140,29 @@ static int get_task_ioprio(struct task_struct *p)
return ret; return ret;
} }
int ioprio_best(unsigned short aprio, unsigned short bprio)
{
unsigned short aclass = IOPRIO_PRIO_CLASS(aprio);
unsigned short bclass = IOPRIO_PRIO_CLASS(bprio);
if (!ioprio_valid(aprio))
return bprio;
if (!ioprio_valid(bprio))
return aprio;
if (aclass == IOPRIO_CLASS_NONE)
aclass = IOPRIO_CLASS_BE;
if (bclass == IOPRIO_CLASS_NONE)
bclass = IOPRIO_CLASS_BE;
if (aclass == bclass)
return min(aprio, bprio);
if (aclass > bclass)
return bprio;
else
return aprio;
}
asmlinkage long sys_ioprio_get(int which, int who) asmlinkage long sys_ioprio_get(int which, int who)
{ {
struct task_struct *g, *p; struct task_struct *g, *p;
......
...@@ -59,27 +59,6 @@ static inline int task_nice_ioprio(struct task_struct *task) ...@@ -59,27 +59,6 @@ static inline int task_nice_ioprio(struct task_struct *task)
/* /*
* For inheritance, return the highest of the two given priorities * For inheritance, return the highest of the two given priorities
*/ */
static inline int ioprio_best(unsigned short aprio, unsigned short bprio) extern int ioprio_best(unsigned short aprio, unsigned short bprio);
{
unsigned short aclass = IOPRIO_PRIO_CLASS(aprio);
unsigned short bclass = IOPRIO_PRIO_CLASS(bprio);
if (!ioprio_valid(aprio))
return bprio;
if (!ioprio_valid(bprio))
return aprio;
if (aclass == IOPRIO_CLASS_NONE)
aclass = IOPRIO_CLASS_BE;
if (bclass == IOPRIO_CLASS_NONE)
bclass = IOPRIO_CLASS_BE;
if (aclass == bclass)
return min(aprio, bprio);
if (aclass > bclass)
return bprio;
else
return aprio;
}
#endif #endif
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