On 2015-07-05 at 16:06 +0200, Dušan Čolić wrote: > On 5 Jul 2015 15:12, "Ivan Shapovalov" <intelfx100@xxxxxxxxx> wrote: > > > > On 2015-07-05 at 02:33 +0800, Edward Shishkin wrote: > > > On 07/05/2015 01:53 AM, Ivan Shapovalov wrote: > > > > On 2015-07-04 at 15:53 +0800, Edward Shishkin wrote: > > > > > > > > > > [...] > > > > > And how to test directly at mount time? > > > > Something along the lines of > > > > - allocate 1 MiB of contiguous space > > > > - fill it with non-zeros > > > > - for N = 1, 2, 4, ...: > > > > - discard N sectors from the contiguous space > > > > - check if anything in the discarded space became zero > > > > -filled > > > > - if it did, infer alignnment from the first zero-filled > > > > block, > > > > infer granularity from the zero-filled region size. > > > > > > > > > mkfs seems to be more suitable for this funny business > > > > Yeah, sure. So... new superblock format with two extra fields? > > > But what happens when someone makes an image of whole partition and > uses it > on new different ssd? Maybe we can make a tunefs.reiser4 (just) for that purpose. -- Ivan Shapovalov / intelfx /
Attachment:
signature.asc
Description: This is a digitally signed message part
