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block: add a separate operation type for secure erase

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Instead of overloading the discard support with the REQ_SECURE flag.
Use the opportunity to rename the queue flag as well, and remove the
dead checks for this flag in the RAID 1 and RAID 10 drivers that don't
claim support for secure erase.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2016-06-09 16:00:36 +02:00
committed by Jens Axboe
parent 56332f02a5
commit 288dab8a35
12 changed files with 63 additions and 65 deletions
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27
block/blk-core.c
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@@ -1977,16 +1977,21 @@ generic_make_request_checks(struct bio *bio)
}
}
if ((bio_op(bio) == REQ_OP_DISCARD) &&
(!blk_queue_discard(q) ||
((bio->bi_rw & REQ_SECURE) && !blk_queue_secdiscard(q)))) {
err = -EOPNOTSUPP;
goto end_io;
}
if (bio_op(bio) == REQ_OP_WRITE_SAME && !bdev_write_same(bio->bi_bdev)) {
err = -EOPNOTSUPP;
goto end_io;
switch (bio_op(bio)) {
case REQ_OP_DISCARD:
if (!blk_queue_discard(q))
goto not_supported;
break;
case REQ_OP_SECURE_ERASE:
if (!blk_queue_secure_erase(q))
goto not_supported;
break;
case REQ_OP_WRITE_SAME:
if (!bdev_write_same(bio->bi_bdev))
goto not_supported;
break;
default:
break;
}
/*
@@ -2003,6 +2008,8 @@ generic_make_request_checks(struct bio *bio)
trace_block_bio_queue(q, bio);
return true;
not_supported:
err = -EOPNOTSUPP;
end_io:
bio->bi_error = err;
bio_endio(bio);