Revision 030b655b062fe5190fc490e0091ea50307d7a86f authored by Risto Suominen on 25 August 2008, 06:04:23 UTC, committed by Takashi Iwai on 02 October 2008, 10:50:37 UTC
Correct headphone detection for 1st generation iMac G3 Slot-loading (Screamer).

This patch fixes the regression in the recent snd-powermac which
doesn't support some G3/G4 PowerMacs:
    http://lkml.org/lkml/2008/10/1/220

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent 4dbf95b
Raw File
mnt_namespace.h
#ifndef _NAMESPACE_H_
#define _NAMESPACE_H_
#ifdef __KERNEL__

#include <linux/mount.h>
#include <linux/sched.h>
#include <linux/nsproxy.h>
#include <linux/seq_file.h>

struct mnt_namespace {
	atomic_t		count;
	struct vfsmount *	root;
	struct list_head	list;
	wait_queue_head_t poll;
	int event;
};

struct proc_mounts {
	struct seq_file m; /* must be the first element */
	struct mnt_namespace *ns;
	struct path root;
	int event;
};

extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *,
		struct fs_struct *);
extern void __put_mnt_ns(struct mnt_namespace *ns);

static inline void put_mnt_ns(struct mnt_namespace *ns)
{
	if (atomic_dec_and_lock(&ns->count, &vfsmount_lock))
		/* releases vfsmount_lock */
		__put_mnt_ns(ns);
}

static inline void exit_mnt_ns(struct task_struct *p)
{
	struct mnt_namespace *ns = p->nsproxy->mnt_ns;
	if (ns)
		put_mnt_ns(ns);
}

static inline void get_mnt_ns(struct mnt_namespace *ns)
{
	atomic_inc(&ns->count);
}

extern const struct seq_operations mounts_op;
extern const struct seq_operations mountinfo_op;
extern const struct seq_operations mountstats_op;

#endif
#endif
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