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get_task_comm(): return the result

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It was dumb to make get_task_comm() return void.  Change it to return a
pointer to the resulting output for caller convenience.

Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrew Morton 2008-02-04 22:27:21 -08:00 committed by Linus Torvalds
parent 0ccf831cbe
commit 59714d65df
2 changed files with 3 additions and 2 deletions
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3
fs/exec.c
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@ -947,12 +947,13 @@ static void flush_old_files(struct files_struct * files)
spin_unlock(&files->file_lock);
}
void get_task_comm(char *buf, struct task_struct *tsk)
char *get_task_comm(char *buf, struct task_struct *tsk)
{
/* buf must be at least sizeof(tsk->comm) in size */
task_lock(tsk);
strncpy(buf, tsk->comm, sizeof(tsk->comm));
task_unlock(tsk);
return buf;
}
void set_task_comm(struct task_struct *tsk, char *buf)

2
include/linux/sched.h
View file

@ -1770,7 +1770,7 @@ extern long do_fork(unsigned long, unsigned long, struct pt_regs *, unsigned lon
struct task_struct *fork_idle(int);
extern void set_task_comm(struct task_struct *tsk, char *from);
extern void get_task_comm(char *to, struct task_struct *tsk);
extern char *get_task_comm(char *to, struct task_struct *tsk);
#ifdef CONFIG_SMP
extern void wait_task_inactive(struct task_struct * p);