On Wed, Mar 06, 2013 at 10:17:13PM +0800, Zheng Liu wrote: > From: Zheng Liu <wenqing.lz@xxxxxxxxxx> > > We always assume that the return value of ext4_ext_map_blocks is equal > to map->m_len Note that in general, this is _never_ safe to assume. There are a number of times when the number of blocks mapped is less than what the caller originally requested, both when allocating blocks (and there isn't the requestd number of contiguous blocks available), and when EXT4_GET_BLOCKS_CREATE is not set. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
