md: raid 1 supports TRIM
This makes md raid 1 support TRIM. If one disk supports discard and another not, or one has discard_zero_data and another not, there could be inconsistent between data from such disks. But this should not matter, discarded data is useless. This will add extra copy in rebuild though. Signed-off-by: NShaohua Li <shli@fusionio.com> Signed-off-by: NNeilBrown <neilb@suse.de>
Showing
想要评论请 注册 或 登录