md: linear supports TRIM
authorShaohua Li <shli@fusionio.com>
Thu, 11 Oct 2012 02:08:44 +0000 (13:08 +1100)
committerNeilBrown <neilb@suse.de>
Thu, 11 Oct 2012 02:08:44 +0000 (13:08 +1100)
This makes md linear support TRIM.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>

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