bcachefs: Erasure coding
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
diff --git a/fs/bcachefs/alloc_types.h b/fs/bcachefs/alloc_types.h
index 2a9c6f0..ef3e400 100644
--- a/fs/bcachefs/alloc_types.h
+++ b/fs/bcachefs/alloc_types.h
@@ -8,6 +8,8 @@
#include "clock_types.h"
#include "fifo.h"
+struct ec_bucket_buf;
+
/* There's two of these clocks, one for reads and one for writes: */
struct bucket_clock {
/*
@@ -56,8 +58,10 @@ struct open_bucket {
u8 freelist;
bool valid;
bool on_partial_list;
+ u8 ec_idx;
unsigned sectors_free;
struct bch_extent_ptr ptr;
+ struct ec_stripe_new *ec;
};
#define OPEN_BUCKET_LIST_MAX 15
@@ -67,18 +71,23 @@ struct open_buckets {
u8 v[OPEN_BUCKET_LIST_MAX];
};
+struct dev_stripe_state {
+ u64 next_alloc[BCH_SB_MEMBERS_MAX];
+};
+
struct write_point {
struct hlist_node node;
struct mutex lock;
u64 last_used;
unsigned long write_point;
enum bch_data_type type;
+ bool is_ec;
/* calculated based on how many pointers we're actually going to use: */
unsigned sectors_free;
struct open_buckets ptrs;
- u64 next_alloc[BCH_SB_MEMBERS_MAX];
+ struct dev_stripe_state stripe;
};
struct write_point_specifier {
