On 9.03.20 г. 23:32 ч., Omar Sandoval wrote:
> From: Omar Sandoval <osandov@xxxxxx>
>
> The next commit will get rid of btrfs_dio_private->orig_bio. The only
> thing we really need it for is containing all of the checksums, but we
> can easily put those in btrfs_dio_private and get rid of the awkward
> logic that looks up the checksums for orig_bio when the first split bio
> is submitted. (Interestingly, btrfs_dio_private did contain the
> checksums before commit 23ea8e5a0767 ("Btrfs: load checksum data once
> when submitting a direct read io"), but it didn't look them up up
> front.)
nit: It would be useful to surmise the structural changes this patch
does. Essentially this makes each individual cloned bio to index its
checksums into the global checksum storage array anchored at
btrfs_dio_private::sums.
>
> Signed-off-by: Omar Sandoval <osandov@xxxxxx>
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
