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| author | Dan Robertson <dan@dlrobertson.com> | 2021-05-19 02:36:20 +0200 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 23:09:03 +0200 |
| commit | ed34341189478344eb54588ce73f190b86da4d5e (patch) | |
| tree | 15444c5676406966c91ac2a60375edc4e43b678c /fs/bcachefs/buckets.h | |
| parent | bcachefs: Fix for bch2_bkey_pack_pos() not initializing len/version fields (diff) | |
| download | linux-ed34341189478344eb54588ce73f190b86da4d5e.tar.xz linux-ed34341189478344eb54588ce73f190b86da4d5e.zip | |
bcachefs: statfs resports incorrect avail blocks
The current implementation of bch_statfs does not scale the number of
available blocks provided in f_bavail by the reserve factor. This causes
an allocation of a file of this size to fail.
Signed-off-by: Dan Robertson <dan@dlrobertson.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/buckets.h')
| -rw-r--r-- | fs/bcachefs/buckets.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/bcachefs/buckets.h b/fs/bcachefs/buckets.h index 7463e6420b14..04a2a9310cdd 100644 --- a/fs/bcachefs/buckets.h +++ b/fs/bcachefs/buckets.h @@ -294,6 +294,13 @@ static inline int bch2_disk_reservation_get(struct bch_fs *c, return bch2_disk_reservation_add(c, res, sectors * nr_replicas, flags); } +#define RESERVE_FACTOR 6 + +static inline u64 avail_factor(u64 r) +{ + return div_u64(r << RESERVE_FACTOR, (1 << RESERVE_FACTOR) + 1); +} + int bch2_dev_buckets_resize(struct bch_fs *, struct bch_dev *, u64); void bch2_dev_buckets_free(struct bch_dev *); int bch2_dev_buckets_alloc(struct bch_fs *, struct bch_dev *); |