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| author | Naohiro Aota <naohiro.aota@wdc.com> | 2021-12-07 18:35:48 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-01-07 16:18:26 +0300 |
| commit | 50475cd57706359d6cc652be88369dace7a4c2eb (patch) | |
| tree | e15ae8f576248963fcda79291824a0fa1d9eb472 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 1ada69f61c88abb75a1038ee457633325658a183 (diff) | |
| download | linux-50475cd57706359d6cc652be88369dace7a4c2eb.tar.xz | |
btrfs: add extent allocator hook to decide to allocate chunk or not
Introduce a new hook for an extent allocator policy. With the new
hook, a policy can decide to allocate a new block group or not. If
not, it will return -ENOSPC, so btrfs_reserve_extent() will cut the
allocation size in half and retry the allocation if min_alloc_size is
large enough.
The hook has a place holder and will be replaced with the real
implementation in the next patch.
CC: stable@vger.kernel.org # 5.16
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions