diff options
Diffstat (limited to 'drivers/md/persistent-data/dm-btree.c')
| -rw-r--r-- | drivers/md/persistent-data/dm-btree.c | 98 |
1 files changed, 49 insertions, 49 deletions
diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c index a4b2a9ea7cc7..f74822661022 100644 --- a/drivers/md/persistent-data/dm-btree.c +++ b/drivers/md/persistent-data/dm-btree.c @@ -24,8 +24,8 @@ static void memcpy_disk(void *dest, const void *src, size_t len) __dm_unbless_for_disk(src); } -static void array_insert(void *base, size_t elt_size, unsigned nr_elts, - unsigned index, void *elt) +static void array_insert(void *base, size_t elt_size, unsigned int nr_elts, + unsigned int index, void *elt) __dm_written_to_disk(elt) { if (index < nr_elts) @@ -81,7 +81,7 @@ void inc_children(struct dm_transaction_manager *tm, struct btree_node *n, vt->inc(vt->context, value_ptr(n, 0), nr_entries); } -static int insert_at(size_t value_size, struct btree_node *node, unsigned index, +static int insert_at(size_t value_size, struct btree_node *node, unsigned int index, uint64_t key, void *value) __dm_written_to_disk(value) { @@ -163,9 +163,9 @@ EXPORT_SYMBOL_GPL(dm_btree_empty); struct frame { struct dm_block *b; struct btree_node *n; - unsigned level; - unsigned nr_children; - unsigned current_child; + unsigned int level; + unsigned int nr_children; + unsigned int current_child; }; struct del_stack { @@ -194,7 +194,7 @@ static int unprocessed_frames(struct del_stack *s) static void prefetch_children(struct del_stack *s, struct frame *f) { - unsigned i; + unsigned int i; struct dm_block_manager *bm = dm_tm_get_bm(s->tm); for (i = 0; i < f->nr_children; i++) @@ -206,7 +206,7 @@ static bool is_internal_level(struct dm_btree_info *info, struct frame *f) return f->level < (info->levels - 1); } -static int push_frame(struct del_stack *s, dm_block_t b, unsigned level) +static int push_frame(struct del_stack *s, dm_block_t b, unsigned int level) { int r; uint32_t ref_count; @@ -372,7 +372,7 @@ static int btree_lookup_raw(struct ro_spine *s, dm_block_t block, uint64_t key, int dm_btree_lookup(struct dm_btree_info *info, dm_block_t root, uint64_t *keys, void *value_le) { - unsigned level, last_level = info->levels - 1; + unsigned int level, last_level = info->levels - 1; int r = -ENODATA; uint64_t rkey; __le64 internal_value_le; @@ -468,7 +468,7 @@ out: int dm_btree_lookup_next(struct dm_btree_info *info, dm_block_t root, uint64_t *keys, uint64_t *rkey, void *value_le) { - unsigned level; + unsigned int level; int r = -ENODATA; __le64 internal_value_le; struct ro_spine spine; @@ -503,9 +503,9 @@ EXPORT_SYMBOL_GPL(dm_btree_lookup_next); * Copies entries from one region of a btree node to another. The regions * must not overlap. */ -static void copy_entries(struct btree_node *dest, unsigned dest_offset, - struct btree_node *src, unsigned src_offset, - unsigned count) +static void copy_entries(struct btree_node *dest, unsigned int dest_offset, + struct btree_node *src, unsigned int src_offset, + unsigned int count) { size_t value_size = le32_to_cpu(dest->header.value_size); memcpy(dest->keys + dest_offset, src->keys + src_offset, count * sizeof(uint64_t)); @@ -516,9 +516,9 @@ static void copy_entries(struct btree_node *dest, unsigned dest_offset, * Moves entries from one region fo a btree node to another. The regions * may overlap. */ -static void move_entries(struct btree_node *dest, unsigned dest_offset, - struct btree_node *src, unsigned src_offset, - unsigned count) +static void move_entries(struct btree_node *dest, unsigned int dest_offset, + struct btree_node *src, unsigned int src_offset, + unsigned int count) { size_t value_size = le32_to_cpu(dest->header.value_size); memmove(dest->keys + dest_offset, src->keys + src_offset, count * sizeof(uint64_t)); @@ -529,7 +529,7 @@ static void move_entries(struct btree_node *dest, unsigned dest_offset, * Erases the first 'count' entries of a btree node, shifting following * entries down into their place. */ -static void shift_down(struct btree_node *n, unsigned count) +static void shift_down(struct btree_node *n, unsigned int count) { move_entries(n, 0, n, count, le32_to_cpu(n->header.nr_entries) - count); } @@ -538,7 +538,7 @@ static void shift_down(struct btree_node *n, unsigned count) * Moves entries in a btree node up 'count' places, making space for * new entries at the start of the node. */ -static void shift_up(struct btree_node *n, unsigned count) +static void shift_up(struct btree_node *n, unsigned int count) { move_entries(n, count, n, 0, le32_to_cpu(n->header.nr_entries)); } @@ -549,18 +549,18 @@ static void shift_up(struct btree_node *n, unsigned count) */ static void redistribute2(struct btree_node *left, struct btree_node *right) { - unsigned nr_left = le32_to_cpu(left->header.nr_entries); - unsigned nr_right = le32_to_cpu(right->header.nr_entries); - unsigned total = nr_left + nr_right; - unsigned target_left = total / 2; - unsigned target_right = total - target_left; + unsigned int nr_left = le32_to_cpu(left->header.nr_entries); + unsigned int nr_right = le32_to_cpu(right->header.nr_entries); + unsigned int total = nr_left + nr_right; + unsigned int target_left = total / 2; + unsigned int target_right = total - target_left; if (nr_left < target_left) { - unsigned delta = target_left - nr_left; + unsigned int delta = target_left - nr_left; copy_entries(left, nr_left, right, 0, delta); shift_down(right, delta); } else if (nr_left > target_left) { - unsigned delta = nr_left - target_left; + unsigned int delta = nr_left - target_left; if (nr_right) shift_up(right, delta); copy_entries(right, 0, left, target_left, delta); @@ -577,10 +577,10 @@ static void redistribute2(struct btree_node *left, struct btree_node *right) static void redistribute3(struct btree_node *left, struct btree_node *center, struct btree_node *right) { - unsigned nr_left = le32_to_cpu(left->header.nr_entries); - unsigned nr_center = le32_to_cpu(center->header.nr_entries); - unsigned nr_right = le32_to_cpu(right->header.nr_entries); - unsigned total, target_left, target_center, target_right; + unsigned int nr_left = le32_to_cpu(left->header.nr_entries); + unsigned int nr_center = le32_to_cpu(center->header.nr_entries); + unsigned int nr_right = le32_to_cpu(right->header.nr_entries); + unsigned int total, target_left, target_center, target_right; BUG_ON(nr_center); @@ -590,19 +590,19 @@ static void redistribute3(struct btree_node *left, struct btree_node *center, target_right = (total - target_left - target_center); if (nr_left < target_left) { - unsigned left_short = target_left - nr_left; + unsigned int left_short = target_left - nr_left; copy_entries(left, nr_left, right, 0, left_short); copy_entries(center, 0, right, left_short, target_center); shift_down(right, nr_right - target_right); } else if (nr_left < (target_left + target_center)) { - unsigned left_to_center = nr_left - target_left; + unsigned int left_to_center = nr_left - target_left; copy_entries(center, 0, left, target_left, left_to_center); copy_entries(center, left_to_center, right, 0, target_center - left_to_center); shift_down(right, nr_right - target_right); } else { - unsigned right_short = target_right - nr_right; + unsigned int right_short = target_right - nr_right; shift_up(right, right_short); copy_entries(right, 0, left, nr_left - right_short, right_short); copy_entries(center, 0, left, target_left, nr_left - target_left); @@ -643,7 +643,7 @@ static void redistribute3(struct btree_node *left, struct btree_node *center, * * Where A* is a shadow of A. */ -static int split_one_into_two(struct shadow_spine *s, unsigned parent_index, +static int split_one_into_two(struct shadow_spine *s, unsigned int parent_index, struct dm_btree_value_type *vt, uint64_t key) { int r; @@ -697,7 +697,7 @@ static int split_one_into_two(struct shadow_spine *s, unsigned parent_index, * to the new shadow. */ static int shadow_child(struct dm_btree_info *info, struct dm_btree_value_type *vt, - struct btree_node *parent, unsigned index, + struct btree_node *parent, unsigned int index, struct dm_block **result) { int r, inc; @@ -726,11 +726,11 @@ static int shadow_child(struct dm_btree_info *info, struct dm_btree_value_type * * Splits two nodes into three. This is more work, but results in fuller * nodes, so saves metadata space. */ -static int split_two_into_three(struct shadow_spine *s, unsigned parent_index, +static int split_two_into_three(struct shadow_spine *s, unsigned int parent_index, struct dm_btree_value_type *vt, uint64_t key) { int r; - unsigned middle_index; + unsigned int middle_index; struct dm_block *left, *middle, *right, *parent; struct btree_node *ln, *rn, *mn, *pn; __le64 location; @@ -831,7 +831,7 @@ static int btree_split_beneath(struct shadow_spine *s, uint64_t key) { int r; size_t size; - unsigned nr_left, nr_right; + unsigned int nr_left, nr_right; struct dm_block *left, *right, *new_parent; struct btree_node *pn, *ln, *rn; __le64 val; @@ -905,7 +905,7 @@ static int btree_split_beneath(struct shadow_spine *s, uint64_t key) * Redistributes a node's entries with its left sibling. */ static int rebalance_left(struct shadow_spine *s, struct dm_btree_value_type *vt, - unsigned parent_index, uint64_t key) + unsigned int parent_index, uint64_t key) { int r; struct dm_block *sib; @@ -934,7 +934,7 @@ static int rebalance_left(struct shadow_spine *s, struct dm_btree_value_type *vt * Redistributes a nodes entries with its right sibling. */ static int rebalance_right(struct shadow_spine *s, struct dm_btree_value_type *vt, - unsigned parent_index, uint64_t key) + unsigned int parent_index, uint64_t key) { int r; struct dm_block *sib; @@ -962,10 +962,10 @@ static int rebalance_right(struct shadow_spine *s, struct dm_btree_value_type *v /* * Returns the number of spare entries in a node. */ -static int get_node_free_space(struct dm_btree_info *info, dm_block_t b, unsigned *space) +static int get_node_free_space(struct dm_btree_info *info, dm_block_t b, unsigned int *space) { int r; - unsigned nr_entries; + unsigned int nr_entries; struct dm_block *block; struct btree_node *node; @@ -991,12 +991,12 @@ static int get_node_free_space(struct dm_btree_info *info, dm_block_t b, unsigne */ #define SPACE_THRESHOLD 8 static int rebalance_or_split(struct shadow_spine *s, struct dm_btree_value_type *vt, - unsigned parent_index, uint64_t key) + unsigned int parent_index, uint64_t key) { int r; struct btree_node *parent = dm_block_data(shadow_parent(s)); - unsigned nr_parent = le32_to_cpu(parent->header.nr_entries); - unsigned free_space; + unsigned int nr_parent = le32_to_cpu(parent->header.nr_entries); + unsigned int free_space; int left_shared = 0, right_shared = 0; /* Should we move entries to the left sibling? */ @@ -1081,7 +1081,7 @@ static bool has_space_for_insert(struct btree_node *node, uint64_t key) static int btree_insert_raw(struct shadow_spine *s, dm_block_t root, struct dm_btree_value_type *vt, - uint64_t key, unsigned *index) + uint64_t key, unsigned int *index) { int r, i = *index, top = 1; struct btree_node *node; @@ -1215,7 +1215,7 @@ int btree_get_overwrite_leaf(struct dm_btree_info *info, dm_block_t root, } static bool need_insert(struct btree_node *node, uint64_t *keys, - unsigned level, unsigned index) + unsigned int level, unsigned int index) { return ((index >= le32_to_cpu(node->header.nr_entries)) || (le64_to_cpu(node->keys[index]) != keys[level])); @@ -1227,7 +1227,7 @@ static int insert(struct dm_btree_info *info, dm_block_t root, __dm_written_to_disk(value) { int r; - unsigned level, index = -1, last_level = info->levels - 1; + unsigned int level, index = -1, last_level = info->levels - 1; dm_block_t block = root; struct shadow_spine spine; struct btree_node *n; @@ -1413,7 +1413,7 @@ static int walk_node(struct dm_btree_info *info, dm_block_t block, void *context) { int r; - unsigned i, nr; + unsigned int i, nr; struct dm_block *node; struct btree_node *n; uint64_t keys; @@ -1456,7 +1456,7 @@ EXPORT_SYMBOL_GPL(dm_btree_walk); static void prefetch_values(struct dm_btree_cursor *c) { - unsigned i, nr; + unsigned int i, nr; __le64 value_le; struct cursor_node *n = c->nodes + c->depth - 1; struct btree_node *bn = dm_block_data(n->b); |