[U-Boot] [PATCH] ext4fs: Add ext4 extent tree cache

[Marek Vasut]

On 05/14/2018 05:14 PM, Evan Thompson wrote:
> On Sun, May 13, 2018 at 12:03 PM, Marek Vasut <marek.vasut at gmail.com> wrote:
>>
>> btw doesn't CONFIG_BLOCK_CACHE offer similar service, but for everyone
>> and on block level ? I recall looking for ext4 fs speed up , but then
>> ultimately used CONFIG_BLOCK_CACHE which did it for me.
> 
> I was unaware of the existence of CONFIG_BLOCK_CACHE - yes, that will
> solve the same problem by caching at the block level instead of the
> filesystem level. So my patch is redundant, and ext4 users should just
> be advised to turn on CONFIG_BLOCK_CACHE.

Maybe this block cache should be default=y (if BLK is enabled?) or we
should advertise it more somehow. I ran into the exact same issue and
started looking into the ext4 patches myself only to find the block
cache later on.

-- 
Best regards,
Marek Vasut