node.h (6bfaf7b150f7dba04024b7b6420773c09606538c) node.h (ced2c7ea8e99b46755a270872cd5ba61c27cffad)
1/*
2 * fs/f2fs/node.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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295 struct f2fs_node *dst_rn = F2FS_NODE(dst);
296 memcpy(&dst_rn->footer, &src_rn->footer, sizeof(struct node_footer));
297}
298
299static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr)
300{
301 struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
302 struct f2fs_node *rn = F2FS_NODE(page);
1/*
2 * fs/f2fs/node.h
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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295 struct f2fs_node *dst_rn = F2FS_NODE(dst);
296 memcpy(&dst_rn->footer, &src_rn->footer, sizeof(struct node_footer));
297}
298
299static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr)
300{
301 struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
302 struct f2fs_node *rn = F2FS_NODE(page);
303 size_t crc_offset = le32_to_cpu(ckpt->checksum_offset);
304 __u64 cp_ver = le64_to_cpu(ckpt->checkpoint_ver);
303 __u64 cp_ver = cur_cp_version(ckpt);
305
304
306 if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) {
307 __u64 crc = le32_to_cpu(*((__le32 *)
308 ((unsigned char *)ckpt + crc_offset)));
309 cp_ver |= (crc << 32);
310 }
305 if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG))
306 cp_ver |= (cur_cp_crc(ckpt) << 32);
307
311 rn->footer.cp_ver = cpu_to_le64(cp_ver);
312 rn->footer.next_blkaddr = cpu_to_le32(blkaddr);
313}
314
315static inline bool is_recoverable_dnode(struct page *page)
316{
317 struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
308 rn->footer.cp_ver = cpu_to_le64(cp_ver);
309 rn->footer.next_blkaddr = cpu_to_le32(blkaddr);
310}
311
312static inline bool is_recoverable_dnode(struct page *page)
313{
314 struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
318 size_t crc_offset = le32_to_cpu(ckpt->checksum_offset);
319 __u64 cp_ver = cur_cp_version(ckpt);
320
315 __u64 cp_ver = cur_cp_version(ckpt);
316
321 if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) {
322 __u64 crc = le32_to_cpu(*((__le32 *)
323 ((unsigned char *)ckpt + crc_offset)));
324 cp_ver |= (crc << 32);
325 }
317 if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG))
318 cp_ver |= (cur_cp_crc(ckpt) << 32);
319
326 return cp_ver == cpver_of_node(page);
327}
328
329/*
330 * f2fs assigns the following node offsets described as (num).
331 * N = NIDS_PER_BLOCK
332 *
333 * Inode block (0)

--- 126 unchanged lines hidden --- 		320 return cp_ver == cpver_of_node(page);
321}
322
323/*
324 * f2fs assigns the following node offsets described as (num).
325 * N = NIDS_PER_BLOCK
326 *
327 * Inode block (0)

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