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| author | David Sterba <dsterba@suse.com> | 2022-05-12 20:33:03 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-05-17 21:12:19 +0200 |
| commit | 1a431b0837fd8866df78d883a4626d11968dd934 (patch) | |
| tree | e028cb5b56d7e276b74a518feda35f18a7c3dcfc /Documentation | |
| parent | 908a46085ccbd5f0dc178450144724e436b4a433 (diff) | |
| download | btrfs-progs-1a431b0837fd8866df78d883a4626d11968dd934.tar.gz | |
btrfs-progs: docs: document paused balance
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/btrfs-man5.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/btrfs-man5.rst b/Documentation/btrfs-man5.rst index 4b927383..9632f513 100644 --- a/Documentation/btrfs-man5.rst +++ b/Documentation/btrfs-man5.rst @@ -196,12 +196,14 @@ FILESYSTEM EXCLUSIVE OPERATIONS ------------------------------- There are several operations that affect the whole filesystem and cannot be run -in parallel. Attempt to start one while another is running will fail. +in parallel. Attempt to start one while another is running will fail (see +exceptions below). Since kernel 5.10 the currently running operation can be obtained from */sys/fs/UUID/exclusive_operation* with following values and operations: * balance +* balance paused (since 5.17) * device add * device delete * device replace @@ -212,6 +214,9 @@ Since kernel 5.10 the currently running operation can be obtained from Enqueuing is supported for several btrfs subcommands so they can be started at once and then serialized. +There's an exception when a paused balance allows to start a device add +operation as they don't really collide and this can be used to add more space +for the balance to finish. FILESYSTEM LIMITS ----------------- |