Messages in this thread | | | Subject | Re: [PATCH 00/22 take 3] UBI: Unsorted Block Images | From | Artem Bityutskiy <> | Date | Sun, 18 Mar 2007 18:49:39 +0200 |
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On Sun, 2007-03-18 at 11:27 -0500, Matt Mackall wrote: > Forgive my ignorance, but why did you not implement the two features > above as device mapper layers instead? A device mapper can arbitrarily > transform I/O addresses and contents and has direct access to the > mapped device's ioctl interfaces, etc.
Just because UBI is designed for flash devices, not block devices. Note, UBI is not for MMC/USB stick/SC/etc flashes, which are used as block devices, but for _bare_ flashes.
Please, glance here to find more information about the different between flashes and block devices:
http://www.linux-mtd.infradead.org/faq/general.html#L_mtd_vs_hdd
-- Best regards, Artem Bityutskiy (Битюцкий Артём)
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