On Wed 14-01-09 11:35:50, Eric Sandeen wrote: > Jan Kara wrote: > > To be really safe that the data hit the platter, we should also flush drive's > > writeback caches on fsync and for O_SYNC files or O_DIRSYNC inodes. > > Seems sane, but aren't we getting really divergent behavior here between > ext2, ext3, and ext4 w.r.t. drive cache flushing for sync paths? Well, but ext3/4 should do a barrier on a transaction commit (if the user really cares about data integrity) and hence it implicitely does the same. Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- 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
