diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-11-01 15:13:19 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:11 -0400 |
| commit | cd575ddf57af004913ff5a994aa5f3203216fa68 (patch) | |
| tree | 15fafb5d59b359aef897a2296f1ce7f8bc33f55a /fs/bcachefs/ec_types.h | |
| parent | 91f8b5677b5d831cff34b25ef03322ae49e03256 (diff) | |
bcachefs: Erasure coding
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/ec_types.h')
| -rw-r--r-- | fs/bcachefs/ec_types.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/bcachefs/ec_types.h b/fs/bcachefs/ec_types.h new file mode 100644 index 000000000000..00e89c3b7767 --- /dev/null +++ b/fs/bcachefs/ec_types.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHEFS_EC_TYPES_H +#define _BCACHEFS_EC_TYPES_H + +#include <linux/llist.h> + +#define EC_STRIPE_MAX 16 + +struct ec_stripe { + size_t heap_idx; + + u16 sectors; + u8 algorithm; + + u8 nr_blocks; + u8 nr_redundant; + + u8 alive; + atomic_t pin; + atomic_t blocks_nonempty; + atomic_t block_sectors[EC_STRIPE_MAX]; +}; + +struct ec_stripe_heap_entry { + size_t idx; + unsigned blocks_nonempty; +}; + +typedef HEAP(struct ec_stripe_heap_entry) ec_stripes_heap; + +#endif /* _BCACHEFS_EC_TYPES_H */ |