C++ (Cpp) freeze_super示例

示例#1

文件： ioctl.c 项目： adyjl/DORIMANX_LG_STOCK_LP_KERNEL

static int ioctl_fsfreeze(struct file *filp)
{
	struct super_block *sb = file_inode(filp)->i_sb;

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;

	/* If filesystem doesn't support freeze feature, return. */
	if (sb->s_op->freeze_fs == NULL)
		return -EOPNOTSUPP;

	/* Freeze */
	return freeze_super(sb);
}

示例#2

文件： glops.c 项目： multipath-tcp/mptcp_net-next

static void freeze_go_sync(struct gfs2_glock *gl)
{
	int error = 0;
	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;

	if (gl->gl_state == LM_ST_SHARED &&
	    test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
		atomic_set(&sdp->sd_freeze_state, SFS_STARTING_FREEZE);
		error = freeze_super(sdp->sd_vfs);
		if (error) {
			printk(KERN_INFO "GFS2: couldn't freeze filesystem: %d\n", error);
			gfs2_assert_withdraw(sdp, 0);
		}
		queue_work(gfs2_freeze_wq, &sdp->sd_freeze_work);
		gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_FREEZE |
			       GFS2_LFC_FREEZE_GO_SYNC);
	}
}

示例#3

文件： ioctl.c 项目： rrowicki/Chrono_Kernel-1

static int ioctl_fsfreeze(struct file *filp)
{
	struct super_block *sb = filp->f_path.dentry->d_inode->i_sb;

	if (!capable(CAP_SYS_ADMIN))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif

	/* If filesystem doesn't support freeze feature, return. */
	if (sb->s_op->freeze_fs == NULL)
		return -EOPNOTSUPP;

	/* Freeze */
	return freeze_super(sb);
}