On Friday 26 October 2012, Jaegeuk Kim wrote: > > > + > > > +#define F2FS_ROOT_INO(sbi) (sbi->root_ino_num) > > > +#define F2FS_NODE_INO(sbi) (sbi->node_ino_num) > > > +#define F2FS_META_INO(sbi) (sbi->meta_ino_num) > > > + > > > +#define GFP_F2FS_MOVABLE (__GFP_WAIT | __GFP_IO | __GFP_ZERO) > > > + > > > +#define MAX_ACTIVE_LOGS 16 > > > +#define MAX_ACTIVE_NODE_LOGS 8 > > > +#define MAX_ACTIVE_DATA_LOGS 8 > > > > I think that it makes sense to comment the reasons of such limitations > > in MAX_ACTIVE_LOGS, MAX_ACTIVE_NODE_LOGS, MAX_ACTIVE_DATA_LOGS. > > The maximum number of logs is suggested by arnd before. > As I understood, why he suggested such a quite large number is for further > optimization of multiple logs without any on-disk layout changes. > And, I think it is quite enough. I agree. I think Vyacheslav was just asking you to add a comment explaining how we got to these numbers, like /* * The file format supports up to 16 active logs, which should be * more than enough for future optimizations. The implementation * currently uses no more than 6 logs. * Half the logs are used for nodes, the other half are used for data. */ Arnd -- 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
