md: raid 1 supports TRIM

Browse source

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

...

This commit is contained in:

Shaohua Li 2012-10-11 13:28:54 +11:00 • committed by NeilBrown

parent c83057a1f4

commit 2ff8cc2c6d

1 changed files with 21 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

23

drivers/md/raid1.c

View file