On 9.06.20 г. 22:49 ч., David Sterba wrote: > The CPU and on-disk keys are mapped to two different structures because > of the endianity. There's an intermediate buffer used to do the > conversion, but this is not necessary when CPU and on-disk endianity > matches. > > Add optimized versions of helpers that take disk_key and use the buffer > directly for CPU keys or drop the intermediate buffer and conversion. > > This saves a lot of stack space accross many functions and removes about > 6K of generated binary code: > > text data bss dec hex filename > 1090439 17468 14912 1122819 112203 pre/btrfs.ko > 1084613 17456 14912 1116981 110b35 post/btrfs.ko > > Delta: -5826 > > Signed-off-by: David Sterba <dsterba@xxxxxxxx> Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
