tree-log.c (78ac4f9e5ae022bd183ca21da7b373d300b7be17) tree-log.c (c71dd88007bdc8ba62e99439d93050b0778f101a)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Oracle. All rights reserved.
4 */
5
6#include <linux/sched.h>
7#include <linux/slab.h>
8#include <linux/blkdev.h>

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339 * If the key isn't in the destination yet, a new item is inserted.
340 */
341static noinline int overwrite_item(struct btrfs_trans_handle *trans,
342 struct btrfs_root *root,
343 struct btrfs_path *path,
344 struct extent_buffer *eb, int slot,
345 struct btrfs_key *key)
346{
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2008 Oracle. All rights reserved.
4 */
5
6#include <linux/sched.h>
7#include <linux/slab.h>
8#include <linux/blkdev.h>

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339 * If the key isn't in the destination yet, a new item is inserted.
340 */
341static noinline int overwrite_item(struct btrfs_trans_handle *trans,
342 struct btrfs_root *root,
343 struct btrfs_path *path,
344 struct extent_buffer *eb, int slot,
345 struct btrfs_key *key)
346{
347 struct btrfs_fs_info *fs_info = root->fs_info;
348 int ret;
349 u32 item_size;
350 u64 saved_i_size = 0;
351 int save_old_i_size = 0;
352 unsigned long src_ptr;
353 unsigned long dst_ptr;
354 int overwrite_root = 0;
355 bool inode_item = key->type == BTRFS_INODE_ITEM_KEY;

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462 /* make sure any existing item is the correct size */
463 if (ret == -EEXIST || ret == -EOVERFLOW) {
464 u32 found_size;
465 found_size = btrfs_item_size_nr(path->nodes[0],
466 path->slots[0]);
467 if (found_size > item_size)
468 btrfs_truncate_item(path, item_size, 1);
469 else if (found_size < item_size)
347 int ret;
348 u32 item_size;
349 u64 saved_i_size = 0;
350 int save_old_i_size = 0;
351 unsigned long src_ptr;
352 unsigned long dst_ptr;
353 int overwrite_root = 0;
354 bool inode_item = key->type == BTRFS_INODE_ITEM_KEY;

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461 /* make sure any existing item is the correct size */
462 if (ret == -EEXIST || ret == -EOVERFLOW) {
463 u32 found_size;
464 found_size = btrfs_item_size_nr(path->nodes[0],
465 path->slots[0]);
466 if (found_size > item_size)
467 btrfs_truncate_item(path, item_size, 1);
468 else if (found_size < item_size)
470 btrfs_extend_item(fs_info, path,
471 item_size - found_size);
469 btrfs_extend_item(path, item_size - found_size);
472 } else if (ret) {
473 return ret;
474 }
475 dst_ptr = btrfs_item_ptr_offset(path->nodes[0],
476 path->slots[0]);
477
478 /* don't overwrite an existing inode if the generation number
479 * was logged as zero. This is done when the tree logging code

--- 5878 unchanged lines hidden --- 		470 } else if (ret) {
471 return ret;
472 }
473 dst_ptr = btrfs_item_ptr_offset(path->nodes[0],
474 path->slots[0]);
475
476 /* don't overwrite an existing inode if the generation number
477 * was logged as zero. This is done when the tree logging code

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