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btrfs: delete unused member nobarriers
The last consumer of nobarriers is removed by the commit [1] and sync
won't fail with EOPNOTSUPP anymore. Thus, now when write cache is write
through it just return success without actually transpiring such a
request to the block device/lun.
[1]
commit b25de9d6da
block: remove BIO_EOPNOTSUPP
And, as the device/lun write cache state may change dynamically saving
such as state won't help either. So deleting the member nobarriers.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
parent
28d70e237d
commit
13e88e1560
2 changed files with 0 additions and 4 deletions
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@ -3521,9 +3521,6 @@ static int write_dev_flush(struct btrfs_device *device, int wait)
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struct bio *bio;
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int ret = 0;
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if (device->nobarriers)
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return 0;
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if (wait) {
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bio = device->flush_bio;
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if (!bio)
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@ -123,7 +123,6 @@ struct btrfs_device {
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struct list_head resized_list;
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/* for sending down flush barriers */
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int nobarriers;
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struct bio *flush_bio;
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struct completion flush_wait;
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