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https://github.com/kdave/btrfs-progs
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1aa806a66c
As zoned btrfs uses regular writes for metadata, it needs zone write locking in the IO scheduler. Add a udev rule that configures an IO scheduler doing zone write locking. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com>
10 lines
346 B
Plaintext
10 lines
346 B
Plaintext
SUBSYSTEM!="block", GOTO="btrfs_end"
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ACTION!="add|change", GOTO="btrfs_end"
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ENV{ID_FS_TYPE}!="btrfs", GOTO="btrfs_end"
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# Zoned btrfs needs an IO scheduler that supports zone write locking and
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# currently mq-deadline is the only scheduler capable of this.
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ATTR{queue/zoned}=="host-managed", ATTR{queue/scheduler}="mq-deadline"
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LABEL="btrfs_end"
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