forked from Mirrors/btrfs-progs
A few update for btrfs-progs
Hello, This patch adds inode flags definition to btrfs-progs and updates extent-tree.c to match the kernel.master
parent
ba1efed418
commit
b86a827172
7
ctree.h
7
ctree.h
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@ -415,8 +415,11 @@ struct btrfs_root {
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* data in the FS
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* data in the FS
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*/
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*/
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#define BTRFS_STRING_ITEM_KEY 253
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#define BTRFS_STRING_ITEM_KEY 253
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/*
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* Inode flags
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*/
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#define BTRFS_INODE_NODATASUM 0x1
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#define BTRFS_INODE_NODATACOW 0x2
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#define read_eb_member(eb, ptr, type, member, result) ( \
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#define read_eb_member(eb, ptr, type, member, result) ( \
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read_extent_buffer(eb, (char *)(result), \
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read_extent_buffer(eb, (char *)(result), \
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((unsigned long)(ptr)) + \
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((unsigned long)(ptr)) + \
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@ -34,7 +34,28 @@ static int finish_current_insert(struct btrfs_trans_handle *trans, struct
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btrfs_root *extent_root);
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btrfs_root *extent_root);
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static int del_pending_extents(struct btrfs_trans_handle *trans, struct
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static int del_pending_extents(struct btrfs_trans_handle *trans, struct
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btrfs_root *extent_root);
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btrfs_root *extent_root);
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static int find_previous_extent(struct btrfs_root *root,
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struct btrfs_path *path)
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{
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struct btrfs_key found_key;
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struct extent_buffer *leaf;
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int ret;
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while(1) {
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if (path->slots[0] == 0) {
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ret = btrfs_prev_leaf(root, path);
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if (ret != 0)
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return ret;
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} else {
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path->slots[0]--;
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}
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leaf = path->nodes[0];
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btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
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if (found_key.type == BTRFS_EXTENT_ITEM_KEY)
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return 0;
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}
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return 1;
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}
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static int cache_block_group(struct btrfs_root *root,
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static int cache_block_group(struct btrfs_root *root,
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struct btrfs_block_group_cache *block_group)
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struct btrfs_block_group_cache *block_group)
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{
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{
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@ -66,16 +87,19 @@ static int cache_block_group(struct btrfs_root *root,
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first_free = block_group->key.objectid;
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first_free = block_group->key.objectid;
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key.objectid = block_group->key.objectid;
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key.objectid = block_group->key.objectid;
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key.offset = 0;
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key.offset = 0;
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btrfs_set_key_type(&key, BTRFS_EXTENT_ITEM_KEY);
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btrfs_set_key_type(&key, BTRFS_EXTENT_ITEM_KEY);
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ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
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ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
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if (ret < 0)
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if (ret < 0)
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return ret;
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return ret;
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ret = find_previous_extent(root, path);
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if (ret && path->slots[0] > 0)
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if (ret < 0)
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path->slots[0]--;
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return ret;
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if (ret == 0) {
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leaf = path->nodes[0];
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btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
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if (key.objectid + key.offset > first_free)
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first_free = key.objectid + key.offset;
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}
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while(1) {
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while(1) {
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leaf = path->nodes[0];
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leaf = path->nodes[0];
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slot = path->slots[0];
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slot = path->slots[0];
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@ -89,15 +113,10 @@ static int cache_block_group(struct btrfs_root *root,
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break;
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break;
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}
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}
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}
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}
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btrfs_item_key_to_cpu(leaf, &key, slot);
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btrfs_item_key_to_cpu(leaf, &key, slot);
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if (key.objectid < block_group->key.objectid) {
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if (key.objectid < block_group->key.objectid) {
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if (btrfs_key_type(&key) != BTRFS_EXTENT_REF_KEY &&
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key.objectid + key.offset > first_free)
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first_free = key.objectid + key.offset;
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goto next;
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goto next;
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}
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}
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if (key.objectid >= block_group->key.objectid +
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if (key.objectid >= block_group->key.objectid +
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block_group->key.offset) {
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block_group->key.offset) {
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break;
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break;
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@ -163,11 +182,9 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(struct
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return block_group;
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return block_group;
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return NULL;
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return NULL;
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}
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}
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static u64 noinline find_search_start(struct btrfs_root *root,
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static u64 noinline find_search_start(struct btrfs_root *root,
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struct btrfs_block_group_cache **cache_ret,
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struct btrfs_block_group_cache **cache_ret,
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u64 search_start, int num,
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u64 search_start, int num, int data)
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int data, int full_scan)
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{
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{
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int ret;
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int ret;
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struct btrfs_block_group_cache *cache = *cache_ret;
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struct btrfs_block_group_cache *cache = *cache_ret;
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@ -772,9 +789,7 @@ again:
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out:
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out:
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btrfs_free_path(path);
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btrfs_free_path(path);
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return total_count;
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return total_count;
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}
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}
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int btrfs_inc_root_ref(struct btrfs_trans_handle *trans,
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int btrfs_inc_root_ref(struct btrfs_trans_handle *trans,
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struct btrfs_root *root, u64 owner_objectid)
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struct btrfs_root *root, u64 owner_objectid)
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{
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{
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@ -1426,7 +1441,7 @@ check_failed:
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orig_search_start);
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orig_search_start);
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}
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}
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search_start = find_search_start(root, &block_group, search_start,
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search_start = find_search_start(root, &block_group, search_start,
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total_needed, data, full_scan);
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total_needed, data);
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search_start = stripe_align(root, search_start);
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search_start = stripe_align(root, search_start);
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cached_start = search_start;
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cached_start = search_start;
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btrfs_init_path(path);
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btrfs_init_path(path);
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@ -1438,35 +1453,11 @@ check_failed:
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ret = btrfs_search_slot(trans, root, ins, path, 0, 0);
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ret = btrfs_search_slot(trans, root, ins, path, 0, 0);
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if (ret < 0)
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if (ret < 0)
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goto error;
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goto error;
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ret = find_previous_extent(root, path);
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if (path->slots[0] > 0) {
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if (ret < 0)
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path->slots[0]--;
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goto error;
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}
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l = path->nodes[0];
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l = path->nodes[0];
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btrfs_item_key_to_cpu(l, &key, path->slots[0]);
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btrfs_item_key_to_cpu(l, &key, path->slots[0]);
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/*
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* walk backwards to find the first extent item key
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*/
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while(btrfs_key_type(&key) != BTRFS_EXTENT_ITEM_KEY) {
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if (path->slots[0] == 0) {
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ret = btrfs_prev_leaf(root, path);
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if (ret != 0) {
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ret = btrfs_search_slot(trans, root, ins,
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path, 0, 0);
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if (ret < 0)
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goto error;
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if (path->slots[0] > 0)
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path->slots[0]--;
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break;
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}
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} else {
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path->slots[0]--;
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}
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l = path->nodes[0];
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btrfs_item_key_to_cpu(l, &key, path->slots[0]);
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}
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while (1) {
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while (1) {
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l = path->nodes[0];
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l = path->nodes[0];
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slot = path->slots[0];
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slot = path->slots[0];
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