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Diffstat (limited to 'fs/bcachefs/darray.h')
| -rw-r--r-- | fs/bcachefs/darray.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/fs/bcachefs/darray.h b/fs/bcachefs/darray.h deleted file mode 100644 index 4080ee99aadd..000000000000 --- a/fs/bcachefs/darray.h +++ /dev/null @@ -1,158 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _BCACHEFS_DARRAY_H -#define _BCACHEFS_DARRAY_H - -/* - * Dynamic arrays: - * - * Inspired by CCAN's darray - */ - -#include <linux/cleanup.h> -#include <linux/slab.h> - -#define DARRAY_PREALLOCATED(_type, _nr) \ -struct { \ - size_t nr, size; \ - _type *data; \ - _type preallocated[_nr]; \ -} - -#define DARRAY(_type) DARRAY_PREALLOCATED(_type, 0) - -typedef DARRAY(char) darray_char; -typedef DARRAY(char *) darray_str; -typedef DARRAY(const char *) darray_const_str; - -typedef DARRAY(u8) darray_u8; -typedef DARRAY(u16) darray_u16; -typedef DARRAY(u32) darray_u32; -typedef DARRAY(u64) darray_u64; - -typedef DARRAY(s8) darray_s8; -typedef DARRAY(s16) darray_s16; -typedef DARRAY(s32) darray_s32; -typedef DARRAY(s64) darray_s64; - -int __bch2_darray_resize_noprof(darray_char *, size_t, size_t, gfp_t); - -#define __bch2_darray_resize(...) alloc_hooks(__bch2_darray_resize_noprof(__VA_ARGS__)) - -#define __darray_resize(_d, _element_size, _new_size, _gfp) \ - (unlikely((_new_size) > (_d)->size) \ - ? __bch2_darray_resize((_d), (_element_size), (_new_size), (_gfp))\ - : 0) - -#define darray_resize_gfp(_d, _new_size, _gfp) \ - __darray_resize((darray_char *) (_d), sizeof((_d)->data[0]), (_new_size), _gfp) - -#define darray_resize(_d, _new_size) \ - darray_resize_gfp(_d, _new_size, GFP_KERNEL) - -#define darray_make_room_gfp(_d, _more, _gfp) \ - darray_resize_gfp((_d), (_d)->nr + (_more), _gfp) - -#define darray_make_room(_d, _more) \ - darray_make_room_gfp(_d, _more, GFP_KERNEL) - -#define darray_room(_d) ((_d).size - (_d).nr) - -#define darray_top(_d) ((_d).data[(_d).nr]) - -#define darray_push_gfp(_d, _item, _gfp) \ -({ \ - int _ret = darray_make_room_gfp((_d), 1, _gfp); \ - \ - if (!_ret) \ - (_d)->data[(_d)->nr++] = (_item); \ - _ret; \ -}) - -#define darray_push(_d, _item) darray_push_gfp(_d, _item, GFP_KERNEL) - -#define darray_pop(_d) ((_d)->data[--(_d)->nr]) - -#define darray_first(_d) ((_d).data[0]) -#define darray_last(_d) ((_d).data[(_d).nr - 1]) - -#define darray_insert_item(_d, pos, _item) \ -({ \ - size_t _pos = (pos); \ - int _ret = darray_make_room((_d), 1); \ - \ - if (!_ret) \ - array_insert_item((_d)->data, (_d)->nr, _pos, (_item)); \ - _ret; \ -}) - -#define darray_remove_item(_d, _pos) \ - array_remove_item((_d)->data, (_d)->nr, (_pos) - (_d)->data) - -#define darray_find_p(_d, _i, cond) \ -({ \ - typeof((_d).data) _ret = NULL; \ - \ - darray_for_each(_d, _i) \ - if (cond) { \ - _ret = _i; \ - break; \ - } \ - _ret; \ -}) - -#define darray_find(_d, _item) darray_find_p(_d, _i, *_i == _item) - -/* Iteration: */ - -#define __darray_for_each(_d, _i) \ - for ((_i) = (_d).data; _i < (_d).data + (_d).nr; _i++) - -#define darray_for_each(_d, _i) \ - for (typeof(&(_d).data[0]) _i = (_d).data; _i < (_d).data + (_d).nr; _i++) - -#define darray_for_each_reverse(_d, _i) \ - for (typeof(&(_d).data[0]) _i = (_d).data + (_d).nr - 1; _i >= (_d).data && (_d).nr; --_i) - -/* Init/exit */ - -#define darray_init(_d) \ -do { \ - (_d)->nr = 0; \ - (_d)->size = ARRAY_SIZE((_d)->preallocated); \ - (_d)->data = (_d)->size ? (_d)->preallocated : NULL; \ -} while (0) - -#define darray_exit(_d) \ -do { \ - if (!ARRAY_SIZE((_d)->preallocated) || \ - (_d)->data != (_d)->preallocated) \ - kvfree((_d)->data); \ - darray_init(_d); \ -} while (0) - -#define DEFINE_DARRAY_CLASS(_type) \ -DEFINE_CLASS(_type, _type, darray_exit(&(_T)), (_type) {}, void) - -#define DEFINE_DARRAY(_type) \ -typedef DARRAY(_type) darray_##_type; \ -DEFINE_DARRAY_CLASS(darray_##_type) - -#define DEFINE_DARRAY_NAMED(_name, _type) \ -typedef DARRAY(_type) _name; \ -DEFINE_DARRAY_CLASS(_name) - -DEFINE_DARRAY_CLASS(darray_char); -DEFINE_DARRAY_CLASS(darray_str) -DEFINE_DARRAY_CLASS(darray_const_str) - -DEFINE_DARRAY_CLASS(darray_u8) -DEFINE_DARRAY_CLASS(darray_u16) -DEFINE_DARRAY_CLASS(darray_u32) -DEFINE_DARRAY_CLASS(darray_u64) - -DEFINE_DARRAY_CLASS(darray_s8) -DEFINE_DARRAY_CLASS(darray_s16) -DEFINE_DARRAY_CLASS(darray_s32) -DEFINE_DARRAY_CLASS(darray_s64) - -#endif /* _BCACHEFS_DARRAY_H */ |