Release 4.8 sound/core/seq/seq_lock.c
/*
* Do sleep inside a spin-lock
* Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/export.h>
#include <sound/core.h>
#include "seq_lock.h"
#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
/* wait until all locks are released */
void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
{
int max_count = 5 * HZ;
if (atomic_read(lockp) < 0) {
pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
return;
}
while (atomic_read(lockp) > 0) {
if (max_count == 0) {
pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
break;
}
schedule_timeout_uninterruptible(1);
max_count--;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jaroslav kysela | jaroslav kysela | 87 | 94.57% | 1 | 33.33% |
| takashi iwai | takashi iwai | 4 | 4.35% | 1 | 33.33% |
| nishanth aravamudan | nishanth aravamudan | 1 | 1.09% | 1 | 33.33% |
| Total | 92 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(snd_use_lock_sync_helper);
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jaroslav kysela | jaroslav kysela | 108 | 89.26% | 2 | 33.33% |
| takashi iwai | takashi iwai | 9 | 7.44% | 2 | 33.33% |
| paul gortmaker | paul gortmaker | 3 | 2.48% | 1 | 16.67% |
| nishanth aravamudan | nishanth aravamudan | 1 | 0.83% | 1 | 16.67% |
| Total | 121 | 100.00% | 6 | 100.00% |
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