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/sysfs.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/sysfs.c')
| -rw-r--r-- | fs/btrfs/sysfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index a14812f1254a..45615ce36498 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -764,7 +764,7 @@ static ssize_t btrfs_chunk_size_store(struct kobject *kobj, val = min(val, BTRFS_MAX_DATA_CHUNK_SIZE); /* Limit stripe size to 10% of available space. */ - val = min(div_factor(fs_info->fs_devices->total_rw_bytes, 1), val); + val = min(mult_perc(fs_info->fs_devices->total_rw_bytes, 10), val); /* Must be multiple of 256M. */ val &= ~((u64)SZ_256M - 1); |