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block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD

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Secure erase is a very different operation from discard in that it is
a data integrity operation vs hint.  Fully split the limits and helper
infrastructure to make the separation more clear.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> [drbd]
Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> [nifs2]
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org> [f2fs]
Acked-by: Coly Li <colyli@suse.de> [bcache]
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Acked-by: Chao Yu <chao@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-27-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2022-04-15 06:52:57 +02:00
committed by Jens Axboe
parent 7b47ef52d0
commit 44abff2c0b
33 changed files with 168 additions and 99 deletions
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2
drivers/target/target_core_file.c
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@@ -558,7 +558,7 @@ fd_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb)
ret = blkdev_issue_discard(bdev,
target_to_linux_sector(dev, lba),
target_to_linux_sector(dev, nolb),
GFP_KERNEL, 0);
GFP_KERNEL);
if (ret < 0) {
pr_warn("FILEIO: blkdev_issue_discard() failed: %d\n",
ret);