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| author | Christoph Hellwig <hch@lst.de> | 2022-04-15 06:52:43 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-04-17 19:49:59 -0600 |
| commit | 08e688fdb8f7e862092ae64cee20bc8b463d1046 (patch) | |
| tree | 8c85516d2478db6988a5d73b1032622a2897a705 /drivers/target | |
| parent | 10f0d2a517796b8f6dc04fb0cc3e49003ae6b0bc (diff) | |
| download | linux-08e688fdb8f7e862092ae64cee20bc8b463d1046.tar.gz linux-08e688fdb8f7e862092ae64cee20bc8b463d1046.tar.bz2 linux-08e688fdb8f7e862092ae64cee20bc8b463d1046.zip | |
block: add a bdev_write_cache helper
Add a helper to check the write cache flag based on the block_device
instead of having to poke into the block layer internal request_queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-13-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_iblock.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index b41ee5c3b5b8..03013e85ffc0 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -737,7 +737,7 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, if (test_bit(QUEUE_FLAG_FUA, &q->queue_flags)) { if (cmd->se_cmd_flags & SCF_FUA) opf |= REQ_FUA; - else if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags)) + else if (!bdev_write_cache(ib_dev->ibd_bd)) opf |= REQ_FUA; } } else { @@ -886,11 +886,7 @@ iblock_parse_cdb(struct se_cmd *cmd) static bool iblock_get_write_cache(struct se_device *dev) { - struct iblock_dev *ib_dev = IBLOCK_DEV(dev); - struct block_device *bd = ib_dev->ibd_bd; - struct request_queue *q = bdev_get_queue(bd); - - return test_bit(QUEUE_FLAG_WC, &q->queue_flags); + return bdev_write_cache(IBLOCK_DEV(dev)->ibd_bd); } static const struct target_backend_ops iblock_ops = { |