On Wed, Jan 23, 2013 at 08:03:53PM +0800, Zheng Liu wrote: > + ext4_fsblk_t es_pblk : 62; /* first physical block */ > + ext4_fsblk_t es_status : 2; /* record the status of extent */ I'll accept this for now but note that ext4_fsblk_t is typedefed to be an unsigned long long, and C99 only guarantees that bitfields can be made from Bool, signed int, and unsigned int. Gcc accepts unsigned long long based bit fields as an extension, but it's not portable code. This is kernel code, though, and we have plenty more gcc specific code.... - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html