Btrfs: Disable sysfs files on older kernels (55d47414) · Commits · e / devices / android_kernel_teracube_mt6765

fs/btrfs/sysfs.c

+34 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,7 @@
		#include "disk-io.h"
		#include "transaction.h"

		#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
		static ssize_t root_blocks_used_show(struct btrfs_root root, char buf)
		{
		return snprintf(buf, PAGE_SIZE, "%llu\n",
		@@ -265,3 +266,36 @@ void btrfs_exit_sysfs()
		{
		kset_unregister(btrfs_kset);
		}

		#else

		int btrfs_sysfs_add_super(struct btrfs_fs_info *fs)
		{
		return 0;
		}

		int btrfs_sysfs_add_root(struct btrfs_root *root)
		{
		return 0;
		}

		void btrfs_sysfs_del_root(struct btrfs_root *root)
		{
		return;
		}

		void btrfs_sysfs_del_super(struct btrfs_fs_info *fs)
		{
		return;
		}

		int btrfs_init_sysfs()
		{
		return 0;
		}

		void btrfs_exit_sysfs()
		{
		return;
		}
		#endif