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v5.4
  1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * fs/f2fs/inode.c
  4 *
  5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
  6 *             http://www.samsung.com/
  7 */
  8#include <linux/fs.h>
  9#include <linux/f2fs_fs.h>
 10#include <linux/buffer_head.h>
 11#include <linux/backing-dev.h>
 12#include <linux/writeback.h>
 
 
 
 13
 14#include "f2fs.h"
 15#include "node.h"
 16#include "segment.h"
 17#include "xattr.h"
 18
 19#include <trace/events/f2fs.h>
 20
 
 
 
 
 21void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
 22{
 23	if (is_inode_flag_set(inode, FI_NEW_INODE))
 24		return;
 25
 
 
 
 26	if (f2fs_inode_dirtied(inode, sync))
 27		return;
 28
 
 
 
 
 
 29	mark_inode_dirty_sync(inode);
 30}
 31
 32void f2fs_set_inode_flags(struct inode *inode)
 33{
 34	unsigned int flags = F2FS_I(inode)->i_flags;
 35	unsigned int new_fl = 0;
 36
 37	if (flags & F2FS_SYNC_FL)
 38		new_fl |= S_SYNC;
 39	if (flags & F2FS_APPEND_FL)
 40		new_fl |= S_APPEND;
 41	if (flags & F2FS_IMMUTABLE_FL)
 42		new_fl |= S_IMMUTABLE;
 43	if (flags & F2FS_NOATIME_FL)
 44		new_fl |= S_NOATIME;
 45	if (flags & F2FS_DIRSYNC_FL)
 46		new_fl |= S_DIRSYNC;
 47	if (file_is_encrypt(inode))
 48		new_fl |= S_ENCRYPTED;
 49	if (file_is_verity(inode))
 50		new_fl |= S_VERITY;
 51	if (flags & F2FS_CASEFOLD_FL)
 52		new_fl |= S_CASEFOLD;
 53	inode_set_flags(inode, new_fl,
 54			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
 55			S_ENCRYPTED|S_VERITY|S_CASEFOLD);
 56}
 57
 58static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
 59{
 60	int extra_size = get_extra_isize(inode);
 61
 62	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
 63			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
 64		if (ri->i_addr[extra_size])
 65			inode->i_rdev = old_decode_dev(
 66				le32_to_cpu(ri->i_addr[extra_size]));
 67		else
 68			inode->i_rdev = new_decode_dev(
 69				le32_to_cpu(ri->i_addr[extra_size + 1]));
 70	}
 71}
 72
 73static int __written_first_block(struct f2fs_sb_info *sbi,
 74					struct f2fs_inode *ri)
 75{
 76	block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
 77
 78	if (!__is_valid_data_blkaddr(addr))
 79		return 1;
 80	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
 81		return -EFSCORRUPTED;
 82	return 0;
 83}
 84
 85static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
 86{
 87	int extra_size = get_extra_isize(inode);
 88
 89	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
 90		if (old_valid_dev(inode->i_rdev)) {
 91			ri->i_addr[extra_size] =
 92				cpu_to_le32(old_encode_dev(inode->i_rdev));
 93			ri->i_addr[extra_size + 1] = 0;
 94		} else {
 95			ri->i_addr[extra_size] = 0;
 96			ri->i_addr[extra_size + 1] =
 97				cpu_to_le32(new_encode_dev(inode->i_rdev));
 98			ri->i_addr[extra_size + 2] = 0;
 99		}
100	}
101}
102
103static void __recover_inline_status(struct inode *inode, struct page *ipage)
104{
105	void *inline_data = inline_data_addr(inode, ipage);
106	__le32 *start = inline_data;
107	__le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
108
109	while (start < end) {
110		if (*start++) {
111			f2fs_wait_on_page_writeback(ipage, NODE, true, true);
112
113			set_inode_flag(inode, FI_DATA_EXIST);
114			set_raw_inline(inode, F2FS_INODE(ipage));
115			set_page_dirty(ipage);
116			return;
117		}
118	}
119	return;
120}
121
122static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
123{
124	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
125
126	if (!f2fs_sb_has_inode_chksum(sbi))
127		return false;
128
129	if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
130		return false;
131
132	if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
133				i_inode_checksum))
134		return false;
135
136	return true;
137}
138
139static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
140{
141	struct f2fs_node *node = F2FS_NODE(page);
142	struct f2fs_inode *ri = &node->i;
143	__le32 ino = node->footer.ino;
144	__le32 gen = ri->i_generation;
145	__u32 chksum, chksum_seed;
146	__u32 dummy_cs = 0;
147	unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
148	unsigned int cs_size = sizeof(dummy_cs);
149
150	chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
151							sizeof(ino));
152	chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
153
154	chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
155	chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
156	offset += cs_size;
157	chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
158						F2FS_BLKSIZE - offset);
159	return chksum;
160}
161
162bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
163{
164	struct f2fs_inode *ri;
165	__u32 provided, calculated;
166
167	if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
168		return true;
169
170#ifdef CONFIG_F2FS_CHECK_FS
171	if (!f2fs_enable_inode_chksum(sbi, page))
172#else
173	if (!f2fs_enable_inode_chksum(sbi, page) ||
174			PageDirty(page) || PageWriteback(page))
 
175#endif
176		return true;
177
178	ri = &F2FS_NODE(page)->i;
179	provided = le32_to_cpu(ri->i_inode_checksum);
180	calculated = f2fs_inode_chksum(sbi, page);
181
182	if (provided != calculated)
183		f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
184			  page->index, ino_of_node(page), provided, calculated);
 
185
186	return provided == calculated;
187}
188
189void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
190{
191	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
192
193	if (!f2fs_enable_inode_chksum(sbi, page))
194		return;
195
196	ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
197}
198
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
199static bool sanity_check_inode(struct inode *inode, struct page *node_page)
200{
201	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
202	struct f2fs_inode_info *fi = F2FS_I(inode);
 
203	unsigned long long iblocks;
204
205	iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
206	if (!iblocks) {
207		set_sbi_flag(sbi, SBI_NEED_FSCK);
208		f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
209			  __func__, inode->i_ino, iblocks);
210		return false;
211	}
212
213	if (ino_of_node(node_page) != nid_of_node(node_page)) {
214		set_sbi_flag(sbi, SBI_NEED_FSCK);
215		f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
216			  __func__, inode->i_ino,
217			  ino_of_node(node_page), nid_of_node(node_page));
218		return false;
219	}
220
221	if (f2fs_sb_has_flexible_inline_xattr(sbi)
222			&& !f2fs_has_extra_attr(inode)) {
223		set_sbi_flag(sbi, SBI_NEED_FSCK);
224		f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
225			  __func__, inode->i_ino);
226		return false;
227	}
228
229	if (f2fs_has_extra_attr(inode) &&
230			!f2fs_sb_has_extra_attr(sbi)) {
231		set_sbi_flag(sbi, SBI_NEED_FSCK);
232		f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
233			  __func__, inode->i_ino);
234		return false;
235	}
236
237	if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
238			fi->i_extra_isize % sizeof(__le32)) {
239		set_sbi_flag(sbi, SBI_NEED_FSCK);
240		f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
241			  __func__, inode->i_ino, fi->i_extra_isize,
242			  F2FS_TOTAL_EXTRA_ATTR_SIZE);
243		return false;
244	}
245
246	if (f2fs_has_extra_attr(inode) &&
247		f2fs_sb_has_flexible_inline_xattr(sbi) &&
248		f2fs_has_inline_xattr(inode) &&
249		(!fi->i_inline_xattr_size ||
250		fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
251		set_sbi_flag(sbi, SBI_NEED_FSCK);
252		f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
253			  __func__, inode->i_ino, fi->i_inline_xattr_size,
254			  MAX_INLINE_XATTR_SIZE);
255		return false;
 
 
 
 
256	}
257
258	if (F2FS_I(inode)->extent_tree) {
259		struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
260
261		if (ei->len &&
262			(!f2fs_is_valid_blkaddr(sbi, ei->blk,
263						DATA_GENERIC_ENHANCE) ||
264			!f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
265						DATA_GENERIC_ENHANCE))) {
266			set_sbi_flag(sbi, SBI_NEED_FSCK);
267			f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
268				  __func__, inode->i_ino,
269				  ei->blk, ei->fofs, ei->len);
 
 
 
 
 
 
 
 
 
 
 
 
270			return false;
271		}
272	}
273
274	if (f2fs_has_inline_data(inode) &&
275			(!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
276		set_sbi_flag(sbi, SBI_NEED_FSCK);
277		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
278			  __func__, inode->i_ino, inode->i_mode);
279		return false;
280	}
281
282	if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
283		set_sbi_flag(sbi, SBI_NEED_FSCK);
284		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
285			  __func__, inode->i_ino, inode->i_mode);
286		return false;
287	}
288
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
289	return true;
290}
291
 
 
 
 
 
 
 
 
 
292static int do_read_inode(struct inode *inode)
293{
294	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
295	struct f2fs_inode_info *fi = F2FS_I(inode);
296	struct page *node_page;
297	struct f2fs_inode *ri;
298	projid_t i_projid;
299	int err;
300
301	/* Check if ino is within scope */
302	if (f2fs_check_nid_range(sbi, inode->i_ino))
303		return -EINVAL;
304
305	node_page = f2fs_get_node_page(sbi, inode->i_ino);
306	if (IS_ERR(node_page))
307		return PTR_ERR(node_page);
308
309	ri = F2FS_INODE(node_page);
310
311	inode->i_mode = le16_to_cpu(ri->i_mode);
312	i_uid_write(inode, le32_to_cpu(ri->i_uid));
313	i_gid_write(inode, le32_to_cpu(ri->i_gid));
314	set_nlink(inode, le32_to_cpu(ri->i_links));
315	inode->i_size = le64_to_cpu(ri->i_size);
316	inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
317
318	inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
319	inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
320	inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
321	inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
322	inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
323	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
324	inode->i_generation = le32_to_cpu(ri->i_generation);
325	if (S_ISDIR(inode->i_mode))
326		fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
327	else if (S_ISREG(inode->i_mode))
328		fi->i_gc_failures[GC_FAILURE_PIN] =
329					le16_to_cpu(ri->i_gc_failures);
330	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
331	fi->i_flags = le32_to_cpu(ri->i_flags);
332	if (S_ISREG(inode->i_mode))
333		fi->i_flags &= ~F2FS_PROJINHERIT_FL;
334	fi->flags = 0;
335	fi->i_advise = ri->i_advise;
336	fi->i_pino = le32_to_cpu(ri->i_pino);
337	fi->i_dir_level = ri->i_dir_level;
338
339	if (f2fs_init_extent_tree(inode, &ri->i_ext))
340		set_page_dirty(node_page);
341
342	get_inline_info(inode, ri);
343
344	fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
345					le16_to_cpu(ri->i_extra_isize) : 0;
346
347	if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
348		fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
349	} else if (f2fs_has_inline_xattr(inode) ||
350				f2fs_has_inline_dentry(inode)) {
351		fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
352	} else {
353
354		/*
355		 * Previous inline data or directory always reserved 200 bytes
356		 * in inode layout, even if inline_xattr is disabled. In order
357		 * to keep inline_dentry's structure for backward compatibility,
358		 * we get the space back only from inline_data.
359		 */
360		fi->i_inline_xattr_size = 0;
361	}
362
363	if (!sanity_check_inode(inode, node_page)) {
364		f2fs_put_page(node_page, 1);
 
 
365		return -EFSCORRUPTED;
366	}
367
368	/* check data exist */
369	if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
370		__recover_inline_status(inode, node_page);
371
372	/* try to recover cold bit for non-dir inode */
373	if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
 
374		set_cold_node(node_page, false);
375		set_page_dirty(node_page);
376	}
377
378	/* get rdev by using inline_info */
379	__get_inode_rdev(inode, ri);
380
381	if (S_ISREG(inode->i_mode)) {
382		err = __written_first_block(sbi, ri);
383		if (err < 0) {
384			f2fs_put_page(node_page, 1);
385			return err;
386		}
387		if (!err)
388			set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
389	}
390
391	if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
392		fi->last_disk_size = inode->i_size;
393
394	if (fi->i_flags & F2FS_PROJINHERIT_FL)
395		set_inode_flag(inode, FI_PROJ_INHERIT);
396
397	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
398			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
399		i_projid = (projid_t)le32_to_cpu(ri->i_projid);
400	else
401		i_projid = F2FS_DEF_PROJID;
402	fi->i_projid = make_kprojid(&init_user_ns, i_projid);
403
404	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
405			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
406		fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
407		fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
408	}
409
410	F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
411	F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
412	F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
413	F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
414	f2fs_put_page(node_page, 1);
415
416	stat_inc_inline_xattr(inode);
417	stat_inc_inline_inode(inode);
418	stat_inc_inline_dir(inode);
 
 
419
420	return 0;
421}
422
 
 
 
 
 
 
423struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
424{
425	struct f2fs_sb_info *sbi = F2FS_SB(sb);
426	struct inode *inode;
427	int ret = 0;
428
429	inode = iget_locked(sb, ino);
430	if (!inode)
431		return ERR_PTR(-ENOMEM);
432
433	if (!(inode->i_state & I_NEW)) {
 
 
 
 
 
 
 
 
 
 
434		trace_f2fs_iget(inode);
435		return inode;
436	}
437	if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
 
438		goto make_now;
439
440	ret = do_read_inode(inode);
441	if (ret)
442		goto bad_inode;
443make_now:
444	if (ino == F2FS_NODE_INO(sbi)) {
445		inode->i_mapping->a_ops = &f2fs_node_aops;
446		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
447	} else if (ino == F2FS_META_INO(sbi)) {
448		inode->i_mapping->a_ops = &f2fs_meta_aops;
449		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 
 
 
 
 
 
 
 
 
 
 
450	} else if (S_ISREG(inode->i_mode)) {
451		inode->i_op = &f2fs_file_inode_operations;
452		inode->i_fop = &f2fs_file_operations;
453		inode->i_mapping->a_ops = &f2fs_dblock_aops;
454	} else if (S_ISDIR(inode->i_mode)) {
455		inode->i_op = &f2fs_dir_inode_operations;
456		inode->i_fop = &f2fs_dir_operations;
457		inode->i_mapping->a_ops = &f2fs_dblock_aops;
458		inode_nohighmem(inode);
459	} else if (S_ISLNK(inode->i_mode)) {
460		if (file_is_encrypt(inode))
461			inode->i_op = &f2fs_encrypted_symlink_inode_operations;
462		else
463			inode->i_op = &f2fs_symlink_inode_operations;
464		inode_nohighmem(inode);
465		inode->i_mapping->a_ops = &f2fs_dblock_aops;
466	} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
467			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
468		inode->i_op = &f2fs_special_inode_operations;
469		init_special_inode(inode, inode->i_mode, inode->i_rdev);
470	} else {
471		ret = -EIO;
472		goto bad_inode;
473	}
474	f2fs_set_inode_flags(inode);
 
475	unlock_new_inode(inode);
476	trace_f2fs_iget(inode);
477	return inode;
478
479bad_inode:
480	f2fs_inode_synced(inode);
481	iget_failed(inode);
482	trace_f2fs_iget_exit(inode, ret);
483	return ERR_PTR(ret);
484}
485
486struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
487{
488	struct inode *inode;
489retry:
490	inode = f2fs_iget(sb, ino);
491	if (IS_ERR(inode)) {
492		if (PTR_ERR(inode) == -ENOMEM) {
493			congestion_wait(BLK_RW_ASYNC, HZ/50);
494			goto retry;
495		}
496	}
497	return inode;
498}
499
500void f2fs_update_inode(struct inode *inode, struct page *node_page)
501{
 
502	struct f2fs_inode *ri;
503	struct extent_tree *et = F2FS_I(inode)->extent_tree;
504
505	f2fs_wait_on_page_writeback(node_page, NODE, true, true);
506	set_page_dirty(node_page);
507
508	f2fs_inode_synced(inode);
509
510	ri = F2FS_INODE(node_page);
511
512	ri->i_mode = cpu_to_le16(inode->i_mode);
513	ri->i_advise = F2FS_I(inode)->i_advise;
514	ri->i_uid = cpu_to_le32(i_uid_read(inode));
515	ri->i_gid = cpu_to_le32(i_gid_read(inode));
516	ri->i_links = cpu_to_le32(inode->i_nlink);
517	ri->i_size = cpu_to_le64(i_size_read(inode));
518	ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
519
 
 
 
 
520	if (et) {
521		read_lock(&et->lock);
522		set_raw_extent(&et->largest, &ri->i_ext);
523		read_unlock(&et->lock);
524	} else {
525		memset(&ri->i_ext, 0, sizeof(ri->i_ext));
526	}
527	set_raw_inline(inode, ri);
528
529	ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
530	ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
531	ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
532	ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
533	ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
534	ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
535	if (S_ISDIR(inode->i_mode))
536		ri->i_current_depth =
537			cpu_to_le32(F2FS_I(inode)->i_current_depth);
538	else if (S_ISREG(inode->i_mode))
539		ri->i_gc_failures =
540			cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
541	ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
542	ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
543	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
544	ri->i_generation = cpu_to_le32(inode->i_generation);
545	ri->i_dir_level = F2FS_I(inode)->i_dir_level;
546
547	if (f2fs_has_extra_attr(inode)) {
548		ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
549
550		if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
551			ri->i_inline_xattr_size =
552				cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
553
554		if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
555			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
556								i_projid)) {
557			projid_t i_projid;
558
559			i_projid = from_kprojid(&init_user_ns,
560						F2FS_I(inode)->i_projid);
561			ri->i_projid = cpu_to_le32(i_projid);
562		}
563
564		if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
565			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
566								i_crtime)) {
567			ri->i_crtime =
568				cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
569			ri->i_crtime_nsec =
570				cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
 
 
 
 
 
 
 
 
 
 
 
 
571		}
572	}
573
574	__set_inode_rdev(inode, ri);
575
576	/* deleted inode */
577	if (inode->i_nlink == 0)
578		clear_inline_node(node_page);
579
580	F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
581	F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
582	F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
583	F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
584
 
585#ifdef CONFIG_F2FS_CHECK_FS
586	f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
587#endif
588}
589
590void f2fs_update_inode_page(struct inode *inode)
591{
592	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
593	struct page *node_page;
 
594retry:
595	node_page = f2fs_get_node_page(sbi, inode->i_ino);
596	if (IS_ERR(node_page)) {
597		int err = PTR_ERR(node_page);
598		if (err == -ENOMEM) {
599			cond_resched();
 
 
 
 
600			goto retry;
601		} else if (err != -ENOENT) {
602			f2fs_stop_checkpoint(sbi, false);
603		}
604		return;
605	}
606	f2fs_update_inode(inode, node_page);
607	f2fs_put_page(node_page, 1);
608}
609
610int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
611{
612	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
613
614	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
615			inode->i_ino == F2FS_META_INO(sbi))
616		return 0;
617
618	if (!is_inode_flag_set(inode, FI_DIRTY_INODE))
 
 
 
 
619		return 0;
620
621	if (!f2fs_is_checkpoint_ready(sbi))
 
622		return -ENOSPC;
 
623
624	/*
625	 * We need to balance fs here to prevent from producing dirty node pages
626	 * during the urgent cleaning time when runing out of free sections.
627	 */
628	f2fs_update_inode_page(inode);
629	if (wbc && wbc->nr_to_write)
630		f2fs_balance_fs(sbi, true);
631	return 0;
632}
633
634/*
635 * Called at the last iput() if i_nlink is zero
636 */
637void f2fs_evict_inode(struct inode *inode)
638{
639	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
640	nid_t xnid = F2FS_I(inode)->i_xattr_nid;
 
641	int err = 0;
 
 
 
642
643	/* some remained atomic pages should discarded */
644	if (f2fs_is_atomic_file(inode))
645		f2fs_drop_inmem_pages(inode);
 
 
 
646
647	trace_f2fs_evict_inode(inode);
648	truncate_inode_pages_final(&inode->i_data);
649
 
 
 
 
650	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
651			inode->i_ino == F2FS_META_INO(sbi))
 
652		goto out_clear;
653
654	f2fs_bug_on(sbi, get_dirty_pages(inode));
655	f2fs_remove_dirty_inode(inode);
656
657	f2fs_destroy_extent_tree(inode);
 
658
659	if (inode->i_nlink || is_bad_inode(inode))
660		goto no_delete;
661
662	err = dquot_initialize(inode);
663	if (err) {
664		err = 0;
665		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
666	}
667
668	f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
669	f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
670	f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
671
672	sb_start_intwrite(inode->i_sb);
 
 
 
673	set_inode_flag(inode, FI_NO_ALLOC);
674	i_size_write(inode, 0);
675retry:
676	if (F2FS_HAS_BLOCKS(inode))
677		err = f2fs_truncate(inode);
678
679	if (time_to_inject(sbi, FAULT_EVICT_INODE)) {
680		f2fs_show_injection_info(FAULT_EVICT_INODE);
681		err = -EIO;
682	}
683
684	if (!err) {
685		f2fs_lock_op(sbi);
686		err = f2fs_remove_inode_page(inode);
687		f2fs_unlock_op(sbi);
688		if (err == -ENOENT)
689			err = 0;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
690	}
691
692	/* give more chances, if ENOMEM case */
693	if (err == -ENOMEM) {
694		err = 0;
695		goto retry;
696	}
697
 
 
 
698	if (err) {
699		f2fs_update_inode_page(inode);
700		if (dquot_initialize_needed(inode))
701			set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
702	}
703	sb_end_intwrite(inode->i_sb);
 
704no_delete:
705	dquot_drop(inode);
706
707	stat_dec_inline_xattr(inode);
708	stat_dec_inline_dir(inode);
709	stat_dec_inline_inode(inode);
 
 
 
710
711	if (likely(!f2fs_cp_error(sbi) &&
712				!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
713		f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
714	else
715		f2fs_inode_synced(inode);
716
717	/* ino == 0, if f2fs_new_inode() was failed t*/
718	if (inode->i_ino)
719		invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
720							inode->i_ino);
721	if (xnid)
722		invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
723	if (inode->i_nlink) {
724		if (is_inode_flag_set(inode, FI_APPEND_WRITE))
725			f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
726		if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
727			f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
728	}
729	if (is_inode_flag_set(inode, FI_FREE_NID)) {
730		f2fs_alloc_nid_failed(sbi, inode->i_ino);
731		clear_inode_flag(inode, FI_FREE_NID);
732	} else {
733		/*
734		 * If xattr nid is corrupted, we can reach out error condition,
735		 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
736		 * In that case, f2fs_check_nid_range() is enough to give a clue.
737		 */
738	}
739out_clear:
740	fscrypt_put_encryption_info(inode);
741	fsverity_cleanup_inode(inode);
742	clear_inode(inode);
743}
744
745/* caller should call f2fs_lock_op() */
746void f2fs_handle_failed_inode(struct inode *inode)
747{
748	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
749	struct node_info ni;
750	int err;
751
752	/*
753	 * clear nlink of inode in order to release resource of inode
754	 * immediately.
755	 */
756	clear_nlink(inode);
757
758	/*
759	 * we must call this to avoid inode being remained as dirty, resulting
760	 * in a panic when flushing dirty inodes in gdirty_list.
761	 */
762	f2fs_update_inode_page(inode);
763	f2fs_inode_synced(inode);
764
765	/* don't make bad inode, since it becomes a regular file. */
766	unlock_new_inode(inode);
767
768	/*
769	 * Note: we should add inode to orphan list before f2fs_unlock_op()
770	 * so we can prevent losing this orphan when encoutering checkpoint
771	 * and following suddenly power-off.
772	 */
773	err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
774	if (err) {
775		set_sbi_flag(sbi, SBI_NEED_FSCK);
 
776		f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
777		goto out;
778	}
779
780	if (ni.blk_addr != NULL_ADDR) {
781		err = f2fs_acquire_orphan_inode(sbi);
782		if (err) {
783			set_sbi_flag(sbi, SBI_NEED_FSCK);
784			f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
785		} else {
786			f2fs_add_orphan_inode(inode);
787		}
788		f2fs_alloc_nid_done(sbi, inode->i_ino);
789	} else {
790		set_inode_flag(inode, FI_FREE_NID);
791	}
792
793out:
794	f2fs_unlock_op(sbi);
795
796	/* iput will drop the inode object */
797	iput(inode);
798}
v6.13.7
   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * fs/f2fs/inode.c
   4 *
   5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
   6 *             http://www.samsung.com/
   7 */
   8#include <linux/fs.h>
   9#include <linux/f2fs_fs.h>
 
 
  10#include <linux/writeback.h>
  11#include <linux/sched/mm.h>
  12#include <linux/lz4.h>
  13#include <linux/zstd.h>
  14
  15#include "f2fs.h"
  16#include "node.h"
  17#include "segment.h"
  18#include "xattr.h"
  19
  20#include <trace/events/f2fs.h>
  21
  22#ifdef CONFIG_F2FS_FS_COMPRESSION
  23extern const struct address_space_operations f2fs_compress_aops;
  24#endif
  25
  26void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
  27{
  28	if (is_inode_flag_set(inode, FI_NEW_INODE))
  29		return;
  30
  31	if (f2fs_readonly(F2FS_I_SB(inode)->sb))
  32		return;
  33
  34	if (f2fs_inode_dirtied(inode, sync))
  35		return;
  36
  37	if (f2fs_is_atomic_file(inode)) {
  38		set_inode_flag(inode, FI_ATOMIC_DIRTIED);
  39		return;
  40	}
  41
  42	mark_inode_dirty_sync(inode);
  43}
  44
  45void f2fs_set_inode_flags(struct inode *inode)
  46{
  47	unsigned int flags = F2FS_I(inode)->i_flags;
  48	unsigned int new_fl = 0;
  49
  50	if (flags & F2FS_SYNC_FL)
  51		new_fl |= S_SYNC;
  52	if (flags & F2FS_APPEND_FL)
  53		new_fl |= S_APPEND;
  54	if (flags & F2FS_IMMUTABLE_FL)
  55		new_fl |= S_IMMUTABLE;
  56	if (flags & F2FS_NOATIME_FL)
  57		new_fl |= S_NOATIME;
  58	if (flags & F2FS_DIRSYNC_FL)
  59		new_fl |= S_DIRSYNC;
  60	if (file_is_encrypt(inode))
  61		new_fl |= S_ENCRYPTED;
  62	if (file_is_verity(inode))
  63		new_fl |= S_VERITY;
  64	if (flags & F2FS_CASEFOLD_FL)
  65		new_fl |= S_CASEFOLD;
  66	inode_set_flags(inode, new_fl,
  67			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
  68			S_ENCRYPTED|S_VERITY|S_CASEFOLD);
  69}
  70
  71static void __get_inode_rdev(struct inode *inode, struct page *node_page)
  72{
  73	__le32 *addr = get_dnode_addr(inode, node_page);
  74
  75	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
  76			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
  77		if (addr[0])
  78			inode->i_rdev = old_decode_dev(le32_to_cpu(addr[0]));
 
  79		else
  80			inode->i_rdev = new_decode_dev(le32_to_cpu(addr[1]));
 
  81	}
  82}
  83
  84static void __set_inode_rdev(struct inode *inode, struct page *node_page)
 
 
 
 
 
 
 
 
 
 
 
 
  85{
  86	__le32 *addr = get_dnode_addr(inode, node_page);
  87
  88	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
  89		if (old_valid_dev(inode->i_rdev)) {
  90			addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
  91			addr[1] = 0;
 
  92		} else {
  93			addr[0] = 0;
  94			addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
  95			addr[2] = 0;
 
  96		}
  97	}
  98}
  99
 100static void __recover_inline_status(struct inode *inode, struct page *ipage)
 101{
 102	void *inline_data = inline_data_addr(inode, ipage);
 103	__le32 *start = inline_data;
 104	__le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
 105
 106	while (start < end) {
 107		if (*start++) {
 108			f2fs_wait_on_page_writeback(ipage, NODE, true, true);
 109
 110			set_inode_flag(inode, FI_DATA_EXIST);
 111			set_raw_inline(inode, F2FS_INODE(ipage));
 112			set_page_dirty(ipage);
 113			return;
 114		}
 115	}
 116	return;
 117}
 118
 119static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
 120{
 121	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
 122
 123	if (!f2fs_sb_has_inode_chksum(sbi))
 124		return false;
 125
 126	if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
 127		return false;
 128
 129	if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
 130				i_inode_checksum))
 131		return false;
 132
 133	return true;
 134}
 135
 136static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
 137{
 138	struct f2fs_node *node = F2FS_NODE(page);
 139	struct f2fs_inode *ri = &node->i;
 140	__le32 ino = node->footer.ino;
 141	__le32 gen = ri->i_generation;
 142	__u32 chksum, chksum_seed;
 143	__u32 dummy_cs = 0;
 144	unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
 145	unsigned int cs_size = sizeof(dummy_cs);
 146
 147	chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
 148							sizeof(ino));
 149	chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
 150
 151	chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
 152	chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
 153	offset += cs_size;
 154	chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
 155						F2FS_BLKSIZE - offset);
 156	return chksum;
 157}
 158
 159bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
 160{
 161	struct f2fs_inode *ri;
 162	__u32 provided, calculated;
 163
 164	if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
 165		return true;
 166
 167#ifdef CONFIG_F2FS_CHECK_FS
 168	if (!f2fs_enable_inode_chksum(sbi, page))
 169#else
 170	if (!f2fs_enable_inode_chksum(sbi, page) ||
 171			PageDirty(page) ||
 172			folio_test_writeback(page_folio(page)))
 173#endif
 174		return true;
 175
 176	ri = &F2FS_NODE(page)->i;
 177	provided = le32_to_cpu(ri->i_inode_checksum);
 178	calculated = f2fs_inode_chksum(sbi, page);
 179
 180	if (provided != calculated)
 181		f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
 182			  page_folio(page)->index, ino_of_node(page),
 183			  provided, calculated);
 184
 185	return provided == calculated;
 186}
 187
 188void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
 189{
 190	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
 191
 192	if (!f2fs_enable_inode_chksum(sbi, page))
 193		return;
 194
 195	ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
 196}
 197
 198static bool sanity_check_compress_inode(struct inode *inode,
 199			struct f2fs_inode *ri)
 200{
 201	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 202	unsigned char clevel;
 203
 204	if (ri->i_compress_algorithm >= COMPRESS_MAX) {
 205		f2fs_warn(sbi,
 206			"%s: inode (ino=%lx) has unsupported compress algorithm: %u, run fsck to fix",
 207			__func__, inode->i_ino, ri->i_compress_algorithm);
 208		return false;
 209	}
 210	if (le64_to_cpu(ri->i_compr_blocks) >
 211			SECTOR_TO_BLOCK(inode->i_blocks)) {
 212		f2fs_warn(sbi,
 213			"%s: inode (ino=%lx) has inconsistent i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
 214			__func__, inode->i_ino, le64_to_cpu(ri->i_compr_blocks),
 215			SECTOR_TO_BLOCK(inode->i_blocks));
 216		return false;
 217	}
 218	if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
 219		ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
 220		f2fs_warn(sbi,
 221			"%s: inode (ino=%lx) has unsupported log cluster size: %u, run fsck to fix",
 222			__func__, inode->i_ino, ri->i_log_cluster_size);
 223		return false;
 224	}
 225
 226	clevel = le16_to_cpu(ri->i_compress_flag) >>
 227				COMPRESS_LEVEL_OFFSET;
 228	switch (ri->i_compress_algorithm) {
 229	case COMPRESS_LZO:
 230#ifdef CONFIG_F2FS_FS_LZO
 231		if (clevel)
 232			goto err_level;
 233#endif
 234		break;
 235	case COMPRESS_LZORLE:
 236#ifdef CONFIG_F2FS_FS_LZORLE
 237		if (clevel)
 238			goto err_level;
 239#endif
 240		break;
 241	case COMPRESS_LZ4:
 242#ifdef CONFIG_F2FS_FS_LZ4
 243#ifdef CONFIG_F2FS_FS_LZ4HC
 244		if (clevel &&
 245		   (clevel < LZ4HC_MIN_CLEVEL || clevel > LZ4HC_MAX_CLEVEL))
 246			goto err_level;
 247#else
 248		if (clevel)
 249			goto err_level;
 250#endif
 251#endif
 252		break;
 253	case COMPRESS_ZSTD:
 254#ifdef CONFIG_F2FS_FS_ZSTD
 255		if (clevel < zstd_min_clevel() || clevel > zstd_max_clevel())
 256			goto err_level;
 257#endif
 258		break;
 259	default:
 260		goto err_level;
 261	}
 262
 263	return true;
 264err_level:
 265	f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported compress level: %u, run fsck to fix",
 266		  __func__, inode->i_ino, clevel);
 267	return false;
 268}
 269
 270static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 271{
 272	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 273	struct f2fs_inode_info *fi = F2FS_I(inode);
 274	struct f2fs_inode *ri = F2FS_INODE(node_page);
 275	unsigned long long iblocks;
 276
 277	iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
 278	if (!iblocks) {
 
 279		f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
 280			  __func__, inode->i_ino, iblocks);
 281		return false;
 282	}
 283
 284	if (ino_of_node(node_page) != nid_of_node(node_page)) {
 
 285		f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
 286			  __func__, inode->i_ino,
 287			  ino_of_node(node_page), nid_of_node(node_page));
 288		return false;
 289	}
 290
 291	if (f2fs_has_extra_attr(inode)) {
 292		if (!f2fs_sb_has_extra_attr(sbi)) {
 293			f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
 294				  __func__, inode->i_ino);
 295			return false;
 296		}
 297		if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
 298			fi->i_extra_isize < F2FS_MIN_EXTRA_ATTR_SIZE ||
 
 
 
 
 
 
 
 
 
 299			fi->i_extra_isize % sizeof(__le32)) {
 300			f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
 301				  __func__, inode->i_ino, fi->i_extra_isize,
 302				  F2FS_TOTAL_EXTRA_ATTR_SIZE);
 303			return false;
 304		}
 305		if (f2fs_sb_has_flexible_inline_xattr(sbi) &&
 306			f2fs_has_inline_xattr(inode) &&
 307			(!fi->i_inline_xattr_size ||
 308			fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
 309			f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %lu",
 310				  __func__, inode->i_ino, fi->i_inline_xattr_size,
 311				  MAX_INLINE_XATTR_SIZE);
 312			return false;
 313		}
 314		if (f2fs_sb_has_compression(sbi) &&
 315			fi->i_flags & F2FS_COMPR_FL &&
 316			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
 317						i_compress_flag)) {
 318			if (!sanity_check_compress_inode(inode, ri))
 319				return false;
 320		}
 321	}
 322
 323	if (!f2fs_sb_has_extra_attr(sbi)) {
 324		if (f2fs_sb_has_project_quota(sbi)) {
 325			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
 326				  __func__, inode->i_ino, F2FS_FEATURE_PRJQUOTA);
 327			return false;
 328		}
 329		if (f2fs_sb_has_inode_chksum(sbi)) {
 330			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
 331				  __func__, inode->i_ino, F2FS_FEATURE_INODE_CHKSUM);
 332			return false;
 333		}
 334		if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
 335			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
 336				  __func__, inode->i_ino, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
 337			return false;
 338		}
 339		if (f2fs_sb_has_inode_crtime(sbi)) {
 340			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
 341				  __func__, inode->i_ino, F2FS_FEATURE_INODE_CRTIME);
 342			return false;
 343		}
 344		if (f2fs_sb_has_compression(sbi)) {
 345			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
 346				  __func__, inode->i_ino, F2FS_FEATURE_COMPRESSION);
 347			return false;
 348		}
 349	}
 350
 351	if (f2fs_sanity_check_inline_data(inode, node_page)) {
 
 
 352		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
 353			  __func__, inode->i_ino, inode->i_mode);
 354		return false;
 355	}
 356
 357	if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
 
 358		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
 359			  __func__, inode->i_ino, inode->i_mode);
 360		return false;
 361	}
 362
 363	if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) {
 364		f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off",
 365			  __func__, inode->i_ino);
 366		return false;
 367	}
 368
 369	if (fi->i_xattr_nid && f2fs_check_nid_range(sbi, fi->i_xattr_nid)) {
 370		f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_xattr_nid: %u, run fsck to fix.",
 371			  __func__, inode->i_ino, fi->i_xattr_nid);
 372		return false;
 373	}
 374
 375	if (IS_DEVICE_ALIASING(inode)) {
 376		if (!f2fs_sb_has_device_alias(sbi)) {
 377			f2fs_warn(sbi, "%s: inode (ino=%lx) has device alias flag, but the feature is off",
 378				  __func__, inode->i_ino);
 379			return false;
 380		}
 381		if (!f2fs_is_pinned_file(inode)) {
 382			f2fs_warn(sbi, "%s: inode (ino=%lx) has device alias flag, but is not pinned",
 383				  __func__, inode->i_ino);
 384			return false;
 385		}
 386	}
 387
 388	return true;
 389}
 390
 391static void init_idisk_time(struct inode *inode)
 392{
 393	struct f2fs_inode_info *fi = F2FS_I(inode);
 394
 395	fi->i_disk_time[0] = inode_get_atime(inode);
 396	fi->i_disk_time[1] = inode_get_ctime(inode);
 397	fi->i_disk_time[2] = inode_get_mtime(inode);
 398}
 399
 400static int do_read_inode(struct inode *inode)
 401{
 402	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 403	struct f2fs_inode_info *fi = F2FS_I(inode);
 404	struct page *node_page;
 405	struct f2fs_inode *ri;
 406	projid_t i_projid;
 
 407
 408	/* Check if ino is within scope */
 409	if (f2fs_check_nid_range(sbi, inode->i_ino))
 410		return -EINVAL;
 411
 412	node_page = f2fs_get_node_page(sbi, inode->i_ino);
 413	if (IS_ERR(node_page))
 414		return PTR_ERR(node_page);
 415
 416	ri = F2FS_INODE(node_page);
 417
 418	inode->i_mode = le16_to_cpu(ri->i_mode);
 419	i_uid_write(inode, le32_to_cpu(ri->i_uid));
 420	i_gid_write(inode, le32_to_cpu(ri->i_gid));
 421	set_nlink(inode, le32_to_cpu(ri->i_links));
 422	inode->i_size = le64_to_cpu(ri->i_size);
 423	inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
 424
 425	inode_set_atime(inode, le64_to_cpu(ri->i_atime),
 426			le32_to_cpu(ri->i_atime_nsec));
 427	inode_set_ctime(inode, le64_to_cpu(ri->i_ctime),
 428			le32_to_cpu(ri->i_ctime_nsec));
 429	inode_set_mtime(inode, le64_to_cpu(ri->i_mtime),
 430			le32_to_cpu(ri->i_mtime_nsec));
 431	inode->i_generation = le32_to_cpu(ri->i_generation);
 432	if (S_ISDIR(inode->i_mode))
 433		fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
 434	else if (S_ISREG(inode->i_mode))
 435		fi->i_gc_failures = le16_to_cpu(ri->i_gc_failures);
 
 436	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
 437	fi->i_flags = le32_to_cpu(ri->i_flags);
 438	if (S_ISREG(inode->i_mode))
 439		fi->i_flags &= ~F2FS_PROJINHERIT_FL;
 440	bitmap_zero(fi->flags, FI_MAX);
 441	fi->i_advise = ri->i_advise;
 442	fi->i_pino = le32_to_cpu(ri->i_pino);
 443	fi->i_dir_level = ri->i_dir_level;
 444
 
 
 
 445	get_inline_info(inode, ri);
 446
 447	fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
 448					le16_to_cpu(ri->i_extra_isize) : 0;
 449
 450	if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
 451		fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
 452	} else if (f2fs_has_inline_xattr(inode) ||
 453				f2fs_has_inline_dentry(inode)) {
 454		fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
 455	} else {
 456
 457		/*
 458		 * Previous inline data or directory always reserved 200 bytes
 459		 * in inode layout, even if inline_xattr is disabled. In order
 460		 * to keep inline_dentry's structure for backward compatibility,
 461		 * we get the space back only from inline_data.
 462		 */
 463		fi->i_inline_xattr_size = 0;
 464	}
 465
 466	if (!sanity_check_inode(inode, node_page)) {
 467		f2fs_put_page(node_page, 1);
 468		set_sbi_flag(sbi, SBI_NEED_FSCK);
 469		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 470		return -EFSCORRUPTED;
 471	}
 472
 473	/* check data exist */
 474	if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
 475		__recover_inline_status(inode, node_page);
 476
 477	/* try to recover cold bit for non-dir inode */
 478	if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
 479		f2fs_wait_on_page_writeback(node_page, NODE, true, true);
 480		set_cold_node(node_page, false);
 481		set_page_dirty(node_page);
 482	}
 483
 484	/* get rdev by using inline_info */
 485	__get_inode_rdev(inode, node_page);
 
 
 
 
 
 
 
 
 
 
 486
 487	if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
 488		fi->last_disk_size = inode->i_size;
 489
 490	if (fi->i_flags & F2FS_PROJINHERIT_FL)
 491		set_inode_flag(inode, FI_PROJ_INHERIT);
 492
 493	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
 494			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
 495		i_projid = (projid_t)le32_to_cpu(ri->i_projid);
 496	else
 497		i_projid = F2FS_DEF_PROJID;
 498	fi->i_projid = make_kprojid(&init_user_ns, i_projid);
 499
 500	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
 501			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
 502		fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
 503		fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
 504	}
 505
 506	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
 507					(fi->i_flags & F2FS_COMPR_FL)) {
 508		if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
 509					i_compress_flag)) {
 510			unsigned short compress_flag;
 511
 512			atomic_set(&fi->i_compr_blocks,
 513					le64_to_cpu(ri->i_compr_blocks));
 514			fi->i_compress_algorithm = ri->i_compress_algorithm;
 515			fi->i_log_cluster_size = ri->i_log_cluster_size;
 516			compress_flag = le16_to_cpu(ri->i_compress_flag);
 517			fi->i_compress_level = compress_flag >>
 518						COMPRESS_LEVEL_OFFSET;
 519			fi->i_compress_flag = compress_flag &
 520					GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0);
 521			fi->i_cluster_size = BIT(fi->i_log_cluster_size);
 522			set_inode_flag(inode, FI_COMPRESSED_FILE);
 523		}
 524	}
 525
 526	init_idisk_time(inode);
 527
 528	if (!sanity_check_extent_cache(inode, node_page)) {
 529		f2fs_put_page(node_page, 1);
 530		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 531		return -EFSCORRUPTED;
 532	}
 533
 534	/* Need all the flag bits */
 535	f2fs_init_read_extent_tree(inode, node_page);
 536	f2fs_init_age_extent_tree(inode);
 537
 538	f2fs_put_page(node_page, 1);
 539
 540	stat_inc_inline_xattr(inode);
 541	stat_inc_inline_inode(inode);
 542	stat_inc_inline_dir(inode);
 543	stat_inc_compr_inode(inode);
 544	stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks));
 545
 546	return 0;
 547}
 548
 549static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
 550{
 551	return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
 552		ino == F2FS_COMPRESS_INO(sbi);
 553}
 554
 555struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
 556{
 557	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 558	struct inode *inode;
 559	int ret = 0;
 560
 561	inode = iget_locked(sb, ino);
 562	if (!inode)
 563		return ERR_PTR(-ENOMEM);
 564
 565	if (!(inode->i_state & I_NEW)) {
 566		if (is_meta_ino(sbi, ino)) {
 567			f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
 568			set_sbi_flag(sbi, SBI_NEED_FSCK);
 569			ret = -EFSCORRUPTED;
 570			trace_f2fs_iget_exit(inode, ret);
 571			iput(inode);
 572			f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 573			return ERR_PTR(ret);
 574		}
 575
 576		trace_f2fs_iget(inode);
 577		return inode;
 578	}
 579
 580	if (is_meta_ino(sbi, ino))
 581		goto make_now;
 582
 583	ret = do_read_inode(inode);
 584	if (ret)
 585		goto bad_inode;
 586make_now:
 587	if (ino == F2FS_NODE_INO(sbi)) {
 588		inode->i_mapping->a_ops = &f2fs_node_aops;
 589		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 590	} else if (ino == F2FS_META_INO(sbi)) {
 591		inode->i_mapping->a_ops = &f2fs_meta_aops;
 592		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 593	} else if (ino == F2FS_COMPRESS_INO(sbi)) {
 594#ifdef CONFIG_F2FS_FS_COMPRESSION
 595		inode->i_mapping->a_ops = &f2fs_compress_aops;
 596		/*
 597		 * generic_error_remove_folio only truncates pages of regular
 598		 * inode
 599		 */
 600		inode->i_mode |= S_IFREG;
 601#endif
 602		mapping_set_gfp_mask(inode->i_mapping,
 603			GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
 604	} else if (S_ISREG(inode->i_mode)) {
 605		inode->i_op = &f2fs_file_inode_operations;
 606		inode->i_fop = &f2fs_file_operations;
 607		inode->i_mapping->a_ops = &f2fs_dblock_aops;
 608	} else if (S_ISDIR(inode->i_mode)) {
 609		inode->i_op = &f2fs_dir_inode_operations;
 610		inode->i_fop = &f2fs_dir_operations;
 611		inode->i_mapping->a_ops = &f2fs_dblock_aops;
 612		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 613	} else if (S_ISLNK(inode->i_mode)) {
 614		if (file_is_encrypt(inode))
 615			inode->i_op = &f2fs_encrypted_symlink_inode_operations;
 616		else
 617			inode->i_op = &f2fs_symlink_inode_operations;
 618		inode_nohighmem(inode);
 619		inode->i_mapping->a_ops = &f2fs_dblock_aops;
 620	} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
 621			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
 622		inode->i_op = &f2fs_special_inode_operations;
 623		init_special_inode(inode, inode->i_mode, inode->i_rdev);
 624	} else {
 625		ret = -EIO;
 626		goto bad_inode;
 627	}
 628	f2fs_set_inode_flags(inode);
 629
 630	unlock_new_inode(inode);
 631	trace_f2fs_iget(inode);
 632	return inode;
 633
 634bad_inode:
 635	f2fs_inode_synced(inode);
 636	iget_failed(inode);
 637	trace_f2fs_iget_exit(inode, ret);
 638	return ERR_PTR(ret);
 639}
 640
 641struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
 642{
 643	struct inode *inode;
 644retry:
 645	inode = f2fs_iget(sb, ino);
 646	if (IS_ERR(inode)) {
 647		if (PTR_ERR(inode) == -ENOMEM) {
 648			memalloc_retry_wait(GFP_NOFS);
 649			goto retry;
 650		}
 651	}
 652	return inode;
 653}
 654
 655void f2fs_update_inode(struct inode *inode, struct page *node_page)
 656{
 657	struct f2fs_inode_info *fi = F2FS_I(inode);
 658	struct f2fs_inode *ri;
 659	struct extent_tree *et = fi->extent_tree[EX_READ];
 660
 661	f2fs_wait_on_page_writeback(node_page, NODE, true, true);
 662	set_page_dirty(node_page);
 663
 664	f2fs_inode_synced(inode);
 665
 666	ri = F2FS_INODE(node_page);
 667
 668	ri->i_mode = cpu_to_le16(inode->i_mode);
 669	ri->i_advise = fi->i_advise;
 670	ri->i_uid = cpu_to_le32(i_uid_read(inode));
 671	ri->i_gid = cpu_to_le32(i_gid_read(inode));
 672	ri->i_links = cpu_to_le32(inode->i_nlink);
 
 673	ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
 674
 675	if (!f2fs_is_atomic_file(inode) ||
 676			is_inode_flag_set(inode, FI_ATOMIC_COMMITTED))
 677		ri->i_size = cpu_to_le64(i_size_read(inode));
 678
 679	if (et) {
 680		read_lock(&et->lock);
 681		set_raw_read_extent(&et->largest, &ri->i_ext);
 682		read_unlock(&et->lock);
 683	} else {
 684		memset(&ri->i_ext, 0, sizeof(ri->i_ext));
 685	}
 686	set_raw_inline(inode, ri);
 687
 688	ri->i_atime = cpu_to_le64(inode_get_atime_sec(inode));
 689	ri->i_ctime = cpu_to_le64(inode_get_ctime_sec(inode));
 690	ri->i_mtime = cpu_to_le64(inode_get_mtime_sec(inode));
 691	ri->i_atime_nsec = cpu_to_le32(inode_get_atime_nsec(inode));
 692	ri->i_ctime_nsec = cpu_to_le32(inode_get_ctime_nsec(inode));
 693	ri->i_mtime_nsec = cpu_to_le32(inode_get_mtime_nsec(inode));
 694	if (S_ISDIR(inode->i_mode))
 695		ri->i_current_depth = cpu_to_le32(fi->i_current_depth);
 
 696	else if (S_ISREG(inode->i_mode))
 697		ri->i_gc_failures = cpu_to_le16(fi->i_gc_failures);
 698	ri->i_xattr_nid = cpu_to_le32(fi->i_xattr_nid);
 699	ri->i_flags = cpu_to_le32(fi->i_flags);
 700	ri->i_pino = cpu_to_le32(fi->i_pino);
 
 701	ri->i_generation = cpu_to_le32(inode->i_generation);
 702	ri->i_dir_level = fi->i_dir_level;
 703
 704	if (f2fs_has_extra_attr(inode)) {
 705		ri->i_extra_isize = cpu_to_le16(fi->i_extra_isize);
 706
 707		if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
 708			ri->i_inline_xattr_size =
 709				cpu_to_le16(fi->i_inline_xattr_size);
 710
 711		if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
 712			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) {
 
 713			projid_t i_projid;
 714
 715			i_projid = from_kprojid(&init_user_ns, fi->i_projid);
 
 716			ri->i_projid = cpu_to_le32(i_projid);
 717		}
 718
 719		if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
 720			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
 721			ri->i_crtime = cpu_to_le64(fi->i_crtime.tv_sec);
 722			ri->i_crtime_nsec = cpu_to_le32(fi->i_crtime.tv_nsec);
 723		}
 724
 725		if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
 726			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
 727							i_compress_flag)) {
 728			unsigned short compress_flag;
 729
 730			ri->i_compr_blocks = cpu_to_le64(
 731					atomic_read(&fi->i_compr_blocks));
 732			ri->i_compress_algorithm = fi->i_compress_algorithm;
 733			compress_flag = fi->i_compress_flag |
 734						fi->i_compress_level <<
 735						COMPRESS_LEVEL_OFFSET;
 736			ri->i_compress_flag = cpu_to_le16(compress_flag);
 737			ri->i_log_cluster_size = fi->i_log_cluster_size;
 738		}
 739	}
 740
 741	__set_inode_rdev(inode, node_page);
 742
 743	/* deleted inode */
 744	if (inode->i_nlink == 0)
 745		clear_page_private_inline(node_page);
 
 
 
 
 
 746
 747	init_idisk_time(inode);
 748#ifdef CONFIG_F2FS_CHECK_FS
 749	f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
 750#endif
 751}
 752
 753void f2fs_update_inode_page(struct inode *inode)
 754{
 755	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 756	struct page *node_page;
 757	int count = 0;
 758retry:
 759	node_page = f2fs_get_node_page(sbi, inode->i_ino);
 760	if (IS_ERR(node_page)) {
 761		int err = PTR_ERR(node_page);
 762
 763		/* The node block was truncated. */
 764		if (err == -ENOENT)
 765			return;
 766
 767		if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT)
 768			goto retry;
 769		f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE);
 
 
 770		return;
 771	}
 772	f2fs_update_inode(inode, node_page);
 773	f2fs_put_page(node_page, 1);
 774}
 775
 776int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
 777{
 778	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 779
 780	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
 781			inode->i_ino == F2FS_META_INO(sbi))
 782		return 0;
 783
 784	/*
 785	 * atime could be updated without dirtying f2fs inode in lazytime mode
 786	 */
 787	if (f2fs_is_time_consistent(inode) &&
 788		!is_inode_flag_set(inode, FI_DIRTY_INODE))
 789		return 0;
 790
 791	if (!f2fs_is_checkpoint_ready(sbi)) {
 792		f2fs_mark_inode_dirty_sync(inode, true);
 793		return -ENOSPC;
 794	}
 795
 796	/*
 797	 * We need to balance fs here to prevent from producing dirty node pages
 798	 * during the urgent cleaning time when running out of free sections.
 799	 */
 800	f2fs_update_inode_page(inode);
 801	if (wbc && wbc->nr_to_write)
 802		f2fs_balance_fs(sbi, true);
 803	return 0;
 804}
 805
 806/*
 807 * Called at the last iput() if i_nlink is zero
 808 */
 809void f2fs_evict_inode(struct inode *inode)
 810{
 811	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 812	struct f2fs_inode_info *fi = F2FS_I(inode);
 813	nid_t xnid = fi->i_xattr_nid;
 814	int err = 0;
 815	bool freeze_protected = false;
 816
 817	f2fs_abort_atomic_write(inode, true);
 818
 819	if (fi->cow_inode && f2fs_is_cow_file(fi->cow_inode)) {
 820		clear_inode_flag(fi->cow_inode, FI_COW_FILE);
 821		F2FS_I(fi->cow_inode)->atomic_inode = NULL;
 822		iput(fi->cow_inode);
 823		fi->cow_inode = NULL;
 824	}
 825
 826	trace_f2fs_evict_inode(inode);
 827	truncate_inode_pages_final(&inode->i_data);
 828
 829	if ((inode->i_nlink || is_bad_inode(inode)) &&
 830		test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
 831		f2fs_invalidate_compress_pages(sbi, inode->i_ino);
 832
 833	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
 834			inode->i_ino == F2FS_META_INO(sbi) ||
 835			inode->i_ino == F2FS_COMPRESS_INO(sbi))
 836		goto out_clear;
 837
 838	f2fs_bug_on(sbi, get_dirty_pages(inode));
 839	f2fs_remove_dirty_inode(inode);
 840
 841	if (!IS_DEVICE_ALIASING(inode))
 842		f2fs_destroy_extent_tree(inode);
 843
 844	if (inode->i_nlink || is_bad_inode(inode))
 845		goto no_delete;
 846
 847	err = f2fs_dquot_initialize(inode);
 848	if (err) {
 849		err = 0;
 850		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
 851	}
 852
 853	f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
 854	f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
 855	f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
 856
 857	if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING)) {
 858		sb_start_intwrite(inode->i_sb);
 859		freeze_protected = true;
 860	}
 861	set_inode_flag(inode, FI_NO_ALLOC);
 862	i_size_write(inode, 0);
 863retry:
 864	if (F2FS_HAS_BLOCKS(inode))
 865		err = f2fs_truncate(inode);
 866
 867	if (time_to_inject(sbi, FAULT_EVICT_INODE))
 
 868		err = -EIO;
 
 869
 870	if (!err) {
 871		f2fs_lock_op(sbi);
 872		err = f2fs_remove_inode_page(inode);
 873		f2fs_unlock_op(sbi);
 874		if (err == -ENOENT) {
 875			err = 0;
 876
 877			/*
 878			 * in fuzzed image, another node may has the same
 879			 * block address as inode's, if it was truncated
 880			 * previously, truncation of inode node will fail.
 881			 */
 882			if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
 883				f2fs_warn(F2FS_I_SB(inode),
 884					"f2fs_evict_inode: inconsistent node id, ino:%lu",
 885					inode->i_ino);
 886				f2fs_inode_synced(inode);
 887				set_sbi_flag(sbi, SBI_NEED_FSCK);
 888			}
 889		}
 890	}
 891
 892	/* give more chances, if ENOMEM case */
 893	if (err == -ENOMEM) {
 894		err = 0;
 895		goto retry;
 896	}
 897
 898	if (IS_DEVICE_ALIASING(inode))
 899		f2fs_destroy_extent_tree(inode);
 900
 901	if (err) {
 902		f2fs_update_inode_page(inode);
 903		if (dquot_initialize_needed(inode))
 904			set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
 905	}
 906	if (freeze_protected)
 907		sb_end_intwrite(inode->i_sb);
 908no_delete:
 909	dquot_drop(inode);
 910
 911	stat_dec_inline_xattr(inode);
 912	stat_dec_inline_dir(inode);
 913	stat_dec_inline_inode(inode);
 914	stat_dec_compr_inode(inode);
 915	stat_sub_compr_blocks(inode,
 916			atomic_read(&fi->i_compr_blocks));
 917
 918	if (likely(!f2fs_cp_error(sbi) &&
 919				!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
 920		f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
 921	else
 922		f2fs_inode_synced(inode);
 923
 924	/* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
 925	if (inode->i_ino)
 926		invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
 927							inode->i_ino);
 928	if (xnid)
 929		invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
 930	if (inode->i_nlink) {
 931		if (is_inode_flag_set(inode, FI_APPEND_WRITE))
 932			f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
 933		if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
 934			f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
 935	}
 936	if (is_inode_flag_set(inode, FI_FREE_NID)) {
 937		f2fs_alloc_nid_failed(sbi, inode->i_ino);
 938		clear_inode_flag(inode, FI_FREE_NID);
 939	} else {
 940		/*
 941		 * If xattr nid is corrupted, we can reach out error condition,
 942		 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
 943		 * In that case, f2fs_check_nid_range() is enough to give a clue.
 944		 */
 945	}
 946out_clear:
 947	fscrypt_put_encryption_info(inode);
 948	fsverity_cleanup_inode(inode);
 949	clear_inode(inode);
 950}
 951
 952/* caller should call f2fs_lock_op() */
 953void f2fs_handle_failed_inode(struct inode *inode)
 954{
 955	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 956	struct node_info ni;
 957	int err;
 958
 959	/*
 960	 * clear nlink of inode in order to release resource of inode
 961	 * immediately.
 962	 */
 963	clear_nlink(inode);
 964
 965	/*
 966	 * we must call this to avoid inode being remained as dirty, resulting
 967	 * in a panic when flushing dirty inodes in gdirty_list.
 968	 */
 969	f2fs_update_inode_page(inode);
 970	f2fs_inode_synced(inode);
 971
 972	/* don't make bad inode, since it becomes a regular file. */
 973	unlock_new_inode(inode);
 974
 975	/*
 976	 * Note: we should add inode to orphan list before f2fs_unlock_op()
 977	 * so we can prevent losing this orphan when encoutering checkpoint
 978	 * and following suddenly power-off.
 979	 */
 980	err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
 981	if (err) {
 982		set_sbi_flag(sbi, SBI_NEED_FSCK);
 983		set_inode_flag(inode, FI_FREE_NID);
 984		f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
 985		goto out;
 986	}
 987
 988	if (ni.blk_addr != NULL_ADDR) {
 989		err = f2fs_acquire_orphan_inode(sbi);
 990		if (err) {
 991			set_sbi_flag(sbi, SBI_NEED_FSCK);
 992			f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
 993		} else {
 994			f2fs_add_orphan_inode(inode);
 995		}
 996		f2fs_alloc_nid_done(sbi, inode->i_ino);
 997	} else {
 998		set_inode_flag(inode, FI_FREE_NID);
 999	}
1000
1001out:
1002	f2fs_unlock_op(sbi);
1003
1004	/* iput will drop the inode object */
1005	iput(inode);
1006}