tree 4ee089653fe84a9f21518a351b1ad06c8281011f
parent 4143179218960a70d821a425e3c23ce44aa93dee
author Lukas Czerner <lczerner@redhat.com> 1298501391 -0500
committer Theodore Ts'o <tytso@mit.edu> 1298501391 -0500

ext4: Adjust minlen with discard_granularity in the FITRIM ioctl

Discard granularity tells us the minimum size of extent that can be
discarded by the device.  If the user supplies a minimum extent that
should be discarded (range.minlen) which is smaller than the discard
granularity, increase minlen to the discard granularity, since there's
no point submitting trim requests that the device will reject anyway.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>