public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

bcachefs: Fix ec + durability calculation

Browse source 
Durability of an erasure coded pointer doesn't add the device
durability; durability is the same for any extent in that stripe so the
calculation only comes from the stripe.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-11-24 21:52:06 -05:00
parent 7d9f8468ff
commit e4f72bb46a
1 changed files with 12 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
fs/bcachefs/extents.c
View file

@ -649,37 +649,31 @@ unsigned bch2_bkey_replicas(struct bch_fs *c, struct bkey_s_c k)
return replicas;
}
unsigned bch2_extent_ptr_desired_durability(struct bch_fs *c, struct extent_ptr_decoded *p)
static inline unsigned __extent_ptr_durability(struct bch_dev *ca, struct extent_ptr_decoded *p)
{
struct bch_dev *ca;
if (p->ptr.cached)
return 0;
ca = bch_dev_bkey_exists(c, p->ptr.dev);
return p->has_ec
? p->ec.redundancy + 1
: ca->mi.durability;
}
return ca->mi.durability +
(p->has_ec
? p->ec.redundancy
: 0);
unsigned bch2_extent_ptr_desired_durability(struct bch_fs *c, struct extent_ptr_decoded *p)
{
struct bch_dev *ca = bch_dev_bkey_exists(c, p->ptr.dev);
return __extent_ptr_durability(ca, p);
}
unsigned bch2_extent_ptr_durability(struct bch_fs *c, struct extent_ptr_decoded *p)
{
struct bch_dev *ca;
if (p->ptr.cached)
return 0;
ca = bch_dev_bkey_exists(c, p->ptr.dev);
struct bch_dev *ca = bch_dev_bkey_exists(c, p->ptr.dev);
if (ca->mi.state == BCH_MEMBER_STATE_failed)
return 0;
return ca->mi.durability +
(p->has_ec
? p->ec.redundancy
: 0);
return __extent_ptr_durability(ca, p);
}
unsigned bch2_bkey_durability(struct bch_fs *c, struct bkey_s_c k)