/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H #define _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H #include "darray.h" #include "journal_types.h" #define BTREE_WRITE_BUFERED_VAL_U64s_MAX 4 #define BTREE_WRITE_BUFERED_U64s_MAX (BKEY_U64s + BTREE_WRITE_BUFERED_VAL_U64s_MAX) struct wb_key_ref { union { struct { #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ unsigned idx:24; u8 pos[sizeof(struct bpos)]; enum btree_id btree:8; #else enum btree_id btree:8; u8 pos[sizeof(struct bpos)]; unsigned idx:24; #endif } __packed; struct { #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ u64 lo; u64 mi; u64 hi; #else u64 hi; u64 mi; u64 lo; #endif }; }; }; struct btree_write_buffered_key { enum btree_id btree:8; u64 journal_seq:56; __BKEY_PADDED(k, BTREE_WRITE_BUFERED_VAL_U64s_MAX); }; struct btree_write_buffer_keys { DARRAY(struct btree_write_buffered_key) keys; struct journal_entry_pin pin; struct mutex lock; }; struct btree_write_buffer { DARRAY(struct wb_key_ref) sorted; struct btree_write_buffer_keys inc; struct btree_write_buffer_keys flushing; struct work_struct flush_work; DARRAY(struct btree_write_buffered_key) accounting; }; #endif /* _BCACHEFS_BTREE_WRITE_BUFFER_TYPES_H */