Lines Matching refs:inode
17 * the total size of an inode's xattr entries to 4096 bytes, which wouldn't be
34 static inline loff_t f2fs_verity_metadata_pos(const struct inode *inode)
36 return round_up(inode->i_size, 65536);
40 * Read some verity metadata from the inode. __vfs_read() can't be used because
43 static int pagecache_read(struct inode *inode, void *buf, size_t count,
51 page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT,
68 * Write some verity metadata to the inode for FS_IOC_ENABLE_VERITY.
71 static int pagecache_write(struct inode *inode, const void *buf, size_t count,
74 if (pos + count > inode->i_sb->s_maxbytes)
84 res = pagecache_write_begin(NULL, inode->i_mapping, pos, n, 0,
91 res = pagecache_write_end(NULL, inode->i_mapping, pos, n, n,
119 struct inode *inode = file_inode(filp);
122 if (f2fs_verity_in_progress(inode))
125 if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode))
133 err = dquot_initialize(inode);
137 err = f2fs_convert_inline_inode(inode);
141 set_inode_flag(inode, FI_VERITY_IN_PROGRESS);
148 struct inode *inode = file_inode(filp);
149 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
150 u64 desc_pos = f2fs_verity_metadata_pos(inode) + merkle_tree_size;
166 err = pagecache_write(inode, desc, desc_size, desc_pos);
174 * must happen before the verity inode flag gets persisted.
176 err = filemap_write_and_wait(inode->i_mapping);
181 err = f2fs_setxattr(inode, F2FS_XATTR_INDEX_VERITY,
187 /* Finally, set the verity inode flag. */
188 file_set_verity(inode);
189 f2fs_set_inode_flags(inode);
190 f2fs_mark_inode_dirty_sync(inode, true);
192 clear_inode_flag(inode, FI_VERITY_IN_PROGRESS);
205 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
206 truncate_inode_pages(inode->i_mapping, inode->i_size);
207 err2 = f2fs_truncate(inode);
213 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
214 clear_inode_flag(inode, FI_VERITY_IN_PROGRESS);
218 static int f2fs_get_verity_descriptor(struct inode *inode, void *buf,
227 res = f2fs_getxattr(inode, F2FS_XATTR_INDEX_VERITY,
232 f2fs_warn(F2FS_I_SB(inode), "unknown verity xattr format");
239 if (pos + size < pos || pos + size > inode->i_sb->s_maxbytes ||
240 pos < f2fs_verity_metadata_pos(inode) || size > INT_MAX) {
241 f2fs_warn(F2FS_I_SB(inode), "invalid verity xattr");
247 res = pagecache_read(inode, buf, size, pos);
254 static struct page *f2fs_read_merkle_tree_page(struct inode *inode,
260 index += f2fs_verity_metadata_pos(inode) >> PAGE_SHIFT;
262 page = find_get_page_flags(inode->i_mapping, index, FGP_ACCESSED);
264 DEFINE_READAHEAD(ractl, NULL, inode->i_mapping, index);
270 page = read_mapping_page(inode->i_mapping, index, NULL);
275 static int f2fs_write_merkle_tree_block(struct inode *inode, const void *buf,
278 loff_t pos = f2fs_verity_metadata_pos(inode) + (index << log_blocksize);
280 return pagecache_write(inode, buf, 1 << log_blocksize, pos);