diff options
| author | David Sterba <dsterba@suse.com> | 2022-10-26 23:25:14 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-12-05 18:00:48 +0100 |
| commit | 428c8e03109e717d90e0d1329dc3d926b9421ad3 (patch) | |
| tree | ff641f6749860e7305e4cf920d9596f1215b2912 /fs/btrfs/free-space-cache.c | |
| parent | 20af93d97f46a824647326278df7d377ba3269ff (diff) | |
btrfs: simplify percent calculation helpers, rename div_factor
The div_factor* helpers calculate fraction or percentage fraction. The
name is a bit confusing, we use it only for percentage calculations and
there are two helpers.
There's a helper mult_frac that's for general fractions, that tries to
be accurate but we multiply and divide by small numbers so we can use
the div_u64 helper.
Rename the div_factor* helpers and use 1..100 percentage range, also drop
the case checking for percentage == 100, it's never hit.
The conversions:
* div_factor calculates tenths and the numbers need to be adjusted
* div_factor_fine is direct replacement
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 797edb41d0aa..627bd6120368 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -2726,8 +2726,7 @@ static int __btrfs_add_free_space_zoned(struct btrfs_block_group *block_group, btrfs_mark_bg_unused(block_group); } else if (bg_reclaim_threshold && reclaimable_unusable >= - div_factor_fine(block_group->zone_capacity, - bg_reclaim_threshold)) { + mult_perc(block_group->zone_capacity, bg_reclaim_threshold)) { btrfs_mark_bg_to_reclaim(block_group); } |