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btrfs-progs: open the devices exclusively for writes #888

Merged
merged 1 commit into from
Sep 12, 2024
Merged

btrfs-progs: open the devices exclusively for writes #888

merged 1 commit into from
Sep 12, 2024

Commits on Sep 11, 2024

  1. btrfs-progs: open the devices exclusively for writes 

    There is an internal report that, during btrfs-convert to block-group
tree, by accident some systemd events triggered the mount of the target
fs.

This leads to double mount (one by kernel and one by the btrfs-progs),
which seems to cause quite some problems.

To avoid such accident, exclusively opens all devices if btrfs-progs is
doing write operations.

Reported-by: pandada8 <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
    @adam900710
    adam900710 committed Sep 11, 2024
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