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d81a6d7176
These aren't modules, but they do make use of these macros, so they will need export.h to get that definition. Previously, they got it via the implicit module.h inclusion. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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* Do sleep inside a spin-lock
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* Copyright (c) 1999 by Takashi Iwai <tiwai@suse.de>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/export.h>
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#include <sound/core.h>
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#include "seq_lock.h"
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#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
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/* wait until all locks are released */
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void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
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{
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int max_count = 5 * HZ;
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if (atomic_read(lockp) < 0) {
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printk(KERN_WARNING "seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
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return;
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}
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while (atomic_read(lockp) > 0) {
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if (max_count == 0) {
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snd_printk(KERN_WARNING "seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
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break;
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}
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schedule_timeout_uninterruptible(1);
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max_count--;
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}
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}
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EXPORT_SYMBOL(snd_use_lock_sync_helper);
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#endif
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