Good day, >>>>> David Chinner (DC) writes:
DC> So that mean's we'll have 2 separate mechanisms for marking DC> pages as delalloc. XFS uses the BH_delay flag to indicate DC> that a buffer (block) attached to the page is using delalloc. well, for blocksize=pagesize we can save 56 bytes on every page. DC> FWIW, how does this mechanism deal with block size < page size? DC> Don't you have to track delalloc on a block basis rather than DC> a page basis? I'm still thinking how better to deal with that w/o much code duplication. DC> Ah, that's why you can get away with a page flag - you've ignored DC> the partial page delay state problem. Any plans to use the DC> existing method in the future so we will be able to use ext4 delalloc DC> on machines with a page size larger than 4k? what do you mean by "exsiting"? BH_delay? thanks, Alex - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
