| #include <asm/byteorder.h> | |
| #include <linux/crc32c.h> | |
| #include <linux/version.h> | |
| /** | |
| * implementation of crc32c_le() changed in linux-2.6.23, | |
| * has of v0.13 btrfs-progs is using the latest version. | |
| * We must workaround older implementations of crc32c_le() | |
| * found on older kernel versions. | |
| */ | |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) | |
| #define btrfs_crc32c(seed, data, length) \ | |
| __cpu_to_le32( crc32c( __le32_to_cpu(seed), data, length) ) | |
| #else | |
| #define btrfs_crc32c(seed, data, length) \ | |
| crc32c(seed, data, length) | |
| #endif |