Am 28.09.2014 10:48, schrieb Tanya Brokhman:
>>> @@ -424,6 +440,8 @@ struct ubi_fm_sb {
>>> __be32 used_blocks;
>>> __be32 block_loc[UBI_FM_MAX_BLOCKS];
>>> __be32 block_ec[UBI_FM_MAX_BLOCKS];
>>> + __be32 block_rc[UBI_FM_MAX_BLOCKS];
>>> + __be64 block_let[UBI_FM_MAX_BLOCKS];
>>
>> Doesn't this break the fastmap on-disk layout?
>
> What do you mean "break"? I verified fastmap feature is working. the whole
> read-disturb depends on it so I tested this thoroughly.
Did you write a fastmap with your changes applied and then an attach using a
fastmap implementation *without*
you changes?
I bet it will not work because the disk layout is now different.
Linux is not the only user of fastmap. We need to be very careful here.
Thanks,
//richard
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