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block: remove the discard_zeroes_data flag

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Now that we use the proper REQ_OP_WRITE_ZEROES operation everywhere we can
kill this hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2017-04-05 19:21:23 +02:00 • committed by Jens Axboe
parent 45c21793a6
commit 48920ff2a5
23 changed files with 27 additions and 124 deletions
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5
include/linux/device-mapper.h
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@ -296,11 +296,6 @@ struct dm_target {
* on max_io_len boundary.
*/
bool split_discard_bios:1;
/*
* Set if this target does not return zeroes on discarded blocks.
*/
bool discard_zeroes_data_unsupported:1;
};
/* Each target can link one of these into the table */