Good day, probably the previous set of patches (including mballoc/lg) is too large. so, I reworked delayed allocation a bit so that it can be used on top of regular balloc, though it still can be used with extents-enabled files only. this time series contains just 3 patches: - booked-page-flag.patch adds PG_booked bit to page->flags. it's used in delayed allocation to mark space is already reserved for page (including possible metadata) - ext4-block-reservation.patch this is scalable free space management. every time we delay allocation of some page, a space (including metadata) should be reserved - ext4-delayed-allocation.patch delayed allocation itself, enabled by "delalloc" mount option. extents support is also required. currently it works only with blocksize=pagesize. all the patches can be used in ftp://ftp.clusterfs.com/pub/people/alex/2.6.20-rc1/ the series passed basic tests like dd/dbench/fsx. any comments/questions are very welcome. thanks, Alex - 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
