tree c9c084dc70f54fd860baead437e37f3e1ae9844b
parent 5c79097a28c2525740dd9e4470676ec9d25bee45
author Tom Yan <tom.ty89@gmail.com> 1468355483 +0800
committer Tejun Heo <tj@kernel.org> 1468355837 -0400

libata-scsi: avoid repeated calculation of number of TRIM ranges

Currently libata statically allows only 1-block (512-byte) payload
for each TRIM command. Each payload can carry 64 TRIM ranges since
each range requires 8 bytes.

It is silly to keep doing the calculation (512 / 8) in different
places. Hence, define the new ATA_MAX_TRIM_RNUM for the result.

Signed-off-by: Tom Yan <tom.ty89@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>