ptrv 5668 fs/btrfs/extent_io.c int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv, ptrv 5675 fs/btrfs/extent_io.c char *ptr = (char *)ptrv; ptrv 455 fs/btrfs/extent_io.h int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,