diff options
author | Thomas Bertschinger <tahbertschinger@gmail.com> | 2024-01-15 23:41:02 -0700 |
---|---|---|
committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-16 01:47:05 -0500 |
commit | f5baaf48e3e82b1caf9f5cd1207d4d6feba3a2e5 (patch) | |
tree | 59f7b0e4667df7a9d3d5a45725f2aaab3e79b4c5 /c_src/libbcachefs/alloc_types.h | |
parent | fb35dbfdc5a9446fbb856dae5542b23963e28b89 (diff) |
move Rust sources to top level, C sources into c_src
This moves the Rust sources out of rust_src/ and into the top level.
Running the bcachefs executable out of the development tree is now:
$ ./target/release/bcachefs command
or
$ cargo run --profile release -- command
instead of "./bcachefs command".
Building and installing is still:
$ make && make install
Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'c_src/libbcachefs/alloc_types.h')
-rw-r--r-- | c_src/libbcachefs/alloc_types.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/c_src/libbcachefs/alloc_types.h b/c_src/libbcachefs/alloc_types.h new file mode 100644 index 00000000..b91b7a46 --- /dev/null +++ b/c_src/libbcachefs/alloc_types.h @@ -0,0 +1,126 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHEFS_ALLOC_TYPES_H +#define _BCACHEFS_ALLOC_TYPES_H + +#include <linux/mutex.h> +#include <linux/spinlock.h> + +#include "clock_types.h" +#include "fifo.h" + +struct bucket_alloc_state { + u64 buckets_seen; + u64 skipped_open; + u64 skipped_need_journal_commit; + u64 skipped_nocow; + u64 skipped_nouse; +}; + +#define BCH_WATERMARKS() \ + x(stripe) \ + x(normal) \ + x(copygc) \ + x(btree) \ + x(btree_copygc) \ + x(reclaim) + +enum bch_watermark { +#define x(name) BCH_WATERMARK_##name, + BCH_WATERMARKS() +#undef x + BCH_WATERMARK_NR, +}; + +#define BCH_WATERMARK_BITS 3 +#define BCH_WATERMARK_MASK ~(~0U << BCH_WATERMARK_BITS) + +#define OPEN_BUCKETS_COUNT 1024 + +#define WRITE_POINT_HASH_NR 32 +#define WRITE_POINT_MAX 32 + +/* + * 0 is never a valid open_bucket_idx_t: + */ +typedef u16 open_bucket_idx_t; + +struct open_bucket { + spinlock_t lock; + atomic_t pin; + open_bucket_idx_t freelist; + open_bucket_idx_t hash; + + /* + * When an open bucket has an ec_stripe attached, this is the index of + * the block in the stripe this open_bucket corresponds to: + */ + u8 ec_idx; + enum bch_data_type data_type:6; + unsigned valid:1; + unsigned on_partial_list:1; + + u8 dev; + u8 gen; + u32 sectors_free; + u64 bucket; + struct ec_stripe_new *ec; +}; + +#define OPEN_BUCKET_LIST_MAX 15 + +struct open_buckets { + open_bucket_idx_t nr; + open_bucket_idx_t v[OPEN_BUCKET_LIST_MAX]; +}; + +struct dev_stripe_state { + u64 next_alloc[BCH_SB_MEMBERS_MAX]; +}; + +#define WRITE_POINT_STATES() \ + x(stopped) \ + x(waiting_io) \ + x(waiting_work) \ + x(running) + +enum write_point_state { +#define x(n) WRITE_POINT_##n, + WRITE_POINT_STATES() +#undef x + WRITE_POINT_STATE_NR +}; + +struct write_point { + struct { + struct hlist_node node; + struct mutex lock; + u64 last_used; + unsigned long write_point; + enum bch_data_type data_type; + + /* calculated based on how many pointers we're actually going to use: */ + unsigned sectors_free; + + struct open_buckets ptrs; + struct dev_stripe_state stripe; + + u64 sectors_allocated; + } __aligned(SMP_CACHE_BYTES); + + struct { + struct work_struct index_update_work; + + struct list_head writes; + spinlock_t writes_lock; + + enum write_point_state state; + u64 last_state_change; + u64 time[WRITE_POINT_STATE_NR]; + } __aligned(SMP_CACHE_BYTES); +}; + +struct write_point_specifier { + unsigned long v; +}; + +#endif /* _BCACHEFS_ALLOC_TYPES_H */ |