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bcachefs: Get disk reservation when overwriting data in old snapshot

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Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-03-21 00:03:34 -04:00 committed by Kent Overstreet
parent 4cfb722ca1
commit cb16bfaa86
1 changed files with 4 additions and 3 deletions
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7
fs/bcachefs/io.c
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@ -224,9 +224,10 @@ int bch2_sum_sector_overwrites(struct btree_trans *trans,
(bkey_extent_is_allocation(&new->k) -
bkey_extent_is_allocation(old.k));
*disk_sectors_delta += sectors *
(int) (bch2_bkey_nr_ptrs_allocated(bkey_i_to_s_c(new)) -
bch2_bkey_nr_ptrs_fully_allocated(old));
*disk_sectors_delta += sectors * bch2_bkey_nr_ptrs_allocated(bkey_i_to_s_c(new));
*disk_sectors_delta -= new->k.p.snapshot == old.k->p.snapshot
? sectors * bch2_bkey_nr_ptrs_fully_allocated(old)
: 0;
if (!*should_check_enospc &&
(new_replicas > bch2_bkey_replicas(c, old) ||