Esempi in C++ (Cpp) per autofs4_direct_busy

Esempio n. 1

File: expire.c Progetto: MiniBlu/cm11_kernel_htc_msm8974a3ul

struct dentry *autofs4_expire_direct(struct super_block *sb,
				     struct vfsmount *mnt,
				     struct autofs_sb_info *sbi,
				     int how)
{
	unsigned long timeout;
	struct dentry *root = dget(sb->s_root);
	int do_now = how & AUTOFS_EXP_IMMEDIATE;
	struct autofs_info *ino;

	if (!root)
		return NULL;

	now = jiffies;
	timeout = sbi->exp_timeout;

	spin_lock(&sbi->fs_lock);
	ino = autofs4_dentry_ino(root);
	
	if (ino->flags & AUTOFS_INF_PENDING)
		goto out;
	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
		struct autofs_info *ino = autofs4_dentry_ino(root);
		ino->flags |= AUTOFS_INF_EXPIRING;
		init_completion(&ino->expire_complete);
		spin_unlock(&sbi->fs_lock);
		return root;
	}
out:
	spin_unlock(&sbi->fs_lock);
	dput(root);

	return NULL;
}

Esempio n. 2

File: expire.c Progetto: 3sOx/asuswrt-merlin

/* Check if we can expire a direct mount (possibly a tree) */
static struct dentry *autofs4_expire_direct(struct super_block *sb,
					    struct vfsmount *mnt,
					    struct autofs_sb_info *sbi,
					    int how)
{
	unsigned long timeout;
	struct dentry *root = dget(sb->s_root);
	int do_now = how & AUTOFS_EXP_IMMEDIATE;

	if (!root)
		return NULL;

	now = jiffies;
	timeout = sbi->exp_timeout;

	/* Lock the tree as we must expire as a whole */
	spin_lock(&sbi->fs_lock);
	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
		struct autofs_info *ino = autofs4_dentry_ino(root);

		/* Set this flag early to catch sys_chdir and the like */
		ino->flags |= AUTOFS_INF_EXPIRING;
		spin_unlock(&sbi->fs_lock);
		return root;
	}
	spin_unlock(&sbi->fs_lock);
	dput(root);

	return NULL;
}