On 08/15/2018 04:30 PM, Tom Rini wrote:
On Wed, Aug 08, 2018 at 01:20:29PM +0200, Marek Vasut wrote:
Cache up to 4 kiB entries. 4 kiB is the default block size on ext4, yet the underlying block layer devices usually report support for 512B . In most cases, the 512B support is emulated (ie. SD cards, SSDs, USB sticks etc.) and the real block size of those devices is much bigger.
To avoid performance degradation with such devices and FS setup, bump the maximum cache entry size to 4 kiB.
Signed-off-by: Marek Vasut marex@denx.de Cc: Tom Rini trini@konsulko.com Cc: Simon Glass sjg@chromium.org
Reviewed-by: Tom Rini trini@konsulko.com
I'll pick this up post v2018.09 if no one objects, thanks!
I object. I was hoping there'd be some discussion on how to solve this in a future-proof manner ... it's only a matter of time until someone uses ext4 with 8k blocks on an SSD ...