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(parent: e274832) | patch
null_blk: don't allow discard for zoned mode
authorChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Wed, 20 May 2020 23:01:52 +0000 (16:01 -0700)
committerJens Axboe <axboe@kernel.dk>
Thu, 21 May 2020 14:47:28 +0000 (08:47 -0600)
commit1592cd15eec6e2952453f9a82da6e8a53e2b8db5
treeba66c62d973854ef2db95a22132bfe81d83b901atree | snapshot
parente274832590211c4b1b1e807ca66fad8b5bb8b328commit | diff
null_blk: don't allow discard for zoned mode

Zoned block device specification do not define the behavior of
discard/trim command as this command is generally replaced by the reset
write pointer (zone reset) command. Emulate this in null_blk by making
zoned and discard options mutually exclusive.

Suggested-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/null_blk_main.c diff | blob | history
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