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-rw-r--r--fs/btrfs/compression.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index d181f70caae0..13a4dc0436c9 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -77,7 +77,7 @@ struct btrfs_compress_op {
size_t srclen, size_t destlen);
};
-extern struct btrfs_compress_op btrfs_zlib_compress;
-extern struct btrfs_compress_op btrfs_lzo_compress;
+extern const struct btrfs_compress_op btrfs_zlib_compress;
+extern const struct btrfs_compress_op btrfs_lzo_compress;
#endif
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