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