bool truncate_inline_inode(struct page *ipage, u64 from) { void *addr; if (from >= MAX_INLINE_DATA) return false; addr = inline_data_addr(ipage); f2fs_wait_on_page_writeback(ipage, NODE, true); memset(addr + from, 0, MAX_INLINE_DATA - from); set_page_dirty(ipage); return true; }
void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from) { void *addr; if (from >= MAX_INLINE_DATA) return; addr = inline_data_addr(ipage); f2fs_wait_on_page_writeback(ipage, NODE, true); memset(addr + from, 0, MAX_INLINE_DATA - from); set_page_dirty(ipage); if (from == 0) clear_inode_flag(inode, FI_DATA_EXIST); }
struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *dir, struct page **p) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; struct f2fs_dir_entry *de; struct f2fs_inline_dentry *dentry_blk; ipage = get_node_page(sbi, dir->i_ino); if (IS_ERR(ipage)) return NULL; dentry_blk = inline_data_addr(ipage); de = &dentry_blk->dentry[1]; *p = ipage; unlock_page(ipage); return de; }
static void __recover_inline_status(struct inode *inode, struct page *ipage) { void *inline_data = inline_data_addr(ipage); __le32 *start = inline_data; __le32 *end = start + MAX_INLINE_DATA / sizeof(__le32); while (start < end) { if (*start++) { f2fs_wait_on_page_writeback(ipage, NODE, true); set_inode_flag(inode, FI_DATA_EXIST); set_raw_inline(inode, F2FS_INODE(ipage)); set_page_dirty(ipage); return; } } return; }
int make_empty_inline_dir(struct inode *inode, struct inode *parent, struct page *ipage) { struct f2fs_inline_dentry *inline_dentry; struct f2fs_dentry_ptr d; inline_dentry = inline_data_addr(ipage); make_dentry_ptr_inline(NULL, &d, inline_dentry); do_make_empty_dir(inode, parent, &d); set_page_dirty(ipage); /* update i_size to MAX_INLINE_DATA */ if (i_size_read(inode) < MAX_INLINE_DATA) f2fs_i_size_write(inode, MAX_INLINE_DATA); return 0; }
void read_inline_data(struct page *page, struct page *ipage) { void *src_addr, *dst_addr; if (PageUptodate(page)) return; f2fs_bug_on(F2FS_P_SB(page), page->index); zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); /* Copy the whole inline data block */ src_addr = inline_data_addr(ipage); dst_addr = kmap_atomic(page); memcpy(dst_addr, src_addr, MAX_INLINE_DATA); flush_dcache_page(page); kunmap_atomic(dst_addr); SetPageUptodate(page); }
int make_empty_inline_dir(struct inode *inode, struct inode *parent, struct page *ipage) { struct f2fs_inline_dentry *dentry_blk; struct f2fs_dentry_ptr d; dentry_blk = inline_data_addr(ipage); make_dentry_ptr(NULL, &d, (void *)dentry_blk, 2); do_make_empty_dir(inode, parent, &d); set_page_dirty(ipage); /* update i_size to MAX_INLINE_DATA */ if (i_size_read(inode) < MAX_INLINE_DATA) { i_size_write(inode, MAX_INLINE_DATA); set_inode_flag(F2FS_I(inode), FI_UPDATE_DIR); } return 0; }
bool f2fs_empty_inline_dir(struct inode *dir) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; unsigned int bit_pos = 2; struct f2fs_inline_dentry *dentry_blk; ipage = get_node_page(sbi, dir->i_ino); if (IS_ERR(ipage)) return false; dentry_blk = inline_data_addr(ipage); bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, NR_INLINE_DENTRY, bit_pos); f2fs_put_page(ipage, 1); if (bit_pos < NR_INLINE_DENTRY) return false; return true; }
static int __f2fs_convert_inline_data(struct inode *inode, struct page *page) { int err; struct page *ipage; struct dnode_of_data dn; void *src_addr, *dst_addr; block_t new_blk_addr; struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); struct f2fs_io_info fio = { .type = DATA, .rw = WRITE_SYNC | REQ_PRIO, }; f2fs_lock_op(sbi); ipage = get_node_page(sbi, inode->i_ino); if (IS_ERR(ipage)) return PTR_ERR(ipage); /* * i_addr[0] is not used for inline data, * so reserving new block will not destroy inline data */ set_new_dnode(&dn, inode, ipage, NULL, 0); err = f2fs_reserve_block(&dn, 0); if (err) { f2fs_unlock_op(sbi); return err; } zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); /* Copy the whole inline data block */ src_addr = inline_data_addr(ipage); dst_addr = kmap(page); memcpy(dst_addr, src_addr, MAX_INLINE_DATA); kunmap(page); SetPageUptodate(page); /* write data page to try to make data consistent */ set_page_writeback(page); write_data_page(page, &dn, &new_blk_addr, &fio); update_extent_cache(new_blk_addr, &dn); f2fs_wait_on_page_writeback(page, DATA); /* clear inline data and flag after data writeback */ zero_user_segment(ipage, INLINE_DATA_OFFSET, INLINE_DATA_OFFSET + MAX_INLINE_DATA); clear_inode_flag(F2FS_I(inode), FI_INLINE_DATA); stat_dec_inline_inode(inode); sync_inode_page(&dn); f2fs_put_dnode(&dn); f2fs_unlock_op(sbi); return err; } int f2fs_convert_inline_data(struct inode *inode, pgoff_t to_size) { struct page *page; int err; if (!f2fs_has_inline_data(inode)) return 0; else if (to_size <= MAX_INLINE_DATA) return 0; page = grab_cache_page_write_begin(inode->i_mapping, 0, AOP_FLAG_NOFS); if (!page) return -ENOMEM; err = __f2fs_convert_inline_data(inode, page); f2fs_put_page(page, 1); return err; } int f2fs_write_inline_data(struct inode *inode, struct page *page, unsigned size) { void *src_addr, *dst_addr; struct page *ipage; struct dnode_of_data dn; int err; set_new_dnode(&dn, inode, NULL, NULL, 0); err = get_dnode_of_data(&dn, 0, LOOKUP_NODE); if (err) return err; ipage = dn.inode_page; zero_user_segment(ipage, INLINE_DATA_OFFSET, INLINE_DATA_OFFSET + MAX_INLINE_DATA); src_addr = kmap(page); dst_addr = inline_data_addr(ipage); memcpy(dst_addr, src_addr, size); kunmap(page); /* Release the first data block if it is allocated */ if (!f2fs_has_inline_data(inode)) { truncate_data_blocks_range(&dn, 1); set_inode_flag(F2FS_I(inode), FI_INLINE_DATA); stat_inc_inline_inode(inode); } sync_inode_page(&dn); f2fs_put_dnode(&dn); return 0; }
int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, struct inode *inode, nid_t ino, umode_t mode) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; unsigned int bit_pos; f2fs_hash_t name_hash; size_t namelen = name->len; struct f2fs_inline_dentry *dentry_blk = NULL; struct f2fs_dentry_ptr d; int slots = GET_DENTRY_SLOTS(namelen); struct page *page = NULL; int err = 0; ipage = get_node_page(sbi, dir->i_ino); if (IS_ERR(ipage)) return PTR_ERR(ipage); dentry_blk = inline_data_addr(ipage); bit_pos = room_for_filename(&dentry_blk->dentry_bitmap, slots, NR_INLINE_DENTRY); if (bit_pos >= NR_INLINE_DENTRY) { err = f2fs_convert_inline_dir(dir, ipage, dentry_blk); if (!err) err = -EAGAIN; goto out; } if (inode) { down_write(&F2FS_I(inode)->i_sem); page = init_inode_metadata(inode, dir, name, ipage); if (IS_ERR(page)) { err = PTR_ERR(page); goto fail; } } f2fs_wait_on_page_writeback(ipage, NODE); name_hash = f2fs_dentry_hash(name); make_dentry_ptr(NULL, &d, (void *)dentry_blk, 2); f2fs_update_dentry(ino, mode, &d, name, name_hash, bit_pos); set_page_dirty(ipage); /* we don't need to mark_inode_dirty now */ if (inode) { F2FS_I(inode)->i_pino = dir->i_ino; update_inode(inode, page); f2fs_put_page(page, 1); } update_parent_metadata(dir, inode, 0); fail: if (inode) up_write(&F2FS_I(inode)->i_sem); if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { update_inode(dir, ipage); clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); } out: f2fs_put_page(ipage, 1); return err; }
int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page) { void *src_addr, *dst_addr; struct f2fs_io_info fio = { .sbi = F2FS_I_SB(dn->inode), .type = DATA, .rw = WRITE_SYNC | REQ_PRIO, .page = page, .encrypted_page = NULL, }; int dirty, err; f2fs_bug_on(F2FS_I_SB(dn->inode), page->index); if (!f2fs_exist_data(dn->inode)) goto clear_out; err = f2fs_reserve_block(dn, 0); if (err) return err; f2fs_wait_on_page_writeback(page, DATA); if (PageUptodate(page)) goto no_update; zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); /* Copy the whole inline data block */ src_addr = inline_data_addr(dn->inode_page); dst_addr = kmap_atomic(page); memcpy(dst_addr, src_addr, MAX_INLINE_DATA); flush_dcache_page(page); kunmap_atomic(dst_addr); SetPageUptodate(page); no_update: set_page_dirty(page); /* clear dirty state */ dirty = clear_page_dirty_for_io(page); /* write data page to try to make data consistent */ set_page_writeback(page); fio.blk_addr = dn->data_blkaddr; write_data_page(dn, &fio); set_data_blkaddr(dn); f2fs_update_extent_cache(dn); f2fs_wait_on_page_writeback(page, DATA); if (dirty) inode_dec_dirty_pages(dn->inode); /* this converted inline_data should be recovered. */ set_inode_flag(F2FS_I(dn->inode), FI_APPEND_WRITE); /* clear inline data and flag after data writeback */ truncate_inline_inode(dn->inode_page, 0); clear_out: stat_dec_inline_inode(dn->inode); f2fs_clear_inline_inode(dn->inode); sync_inode_page(dn); f2fs_put_dnode(dn); return 0; } int f2fs_convert_inline_inode(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct dnode_of_data dn; struct page *ipage, *page; int err = 0; page = grab_cache_page(inode->i_mapping, 0); if (!page) return -ENOMEM; f2fs_lock_op(sbi); ipage = get_node_page(sbi, inode->i_ino); if (IS_ERR(ipage)) { err = PTR_ERR(ipage); goto out; } set_new_dnode(&dn, inode, ipage, ipage, 0); if (f2fs_has_inline_data(inode)) err = f2fs_convert_inline_page(&dn, page); f2fs_put_dnode(&dn); out: f2fs_unlock_op(sbi); f2fs_put_page(page, 1); return err; } int f2fs_write_inline_data(struct inode *inode, struct page *page) { void *src_addr, *dst_addr; struct dnode_of_data dn; int err; set_new_dnode(&dn, inode, NULL, NULL, 0); err = get_dnode_of_data(&dn, 0, LOOKUP_NODE); if (err) return err; if (!f2fs_has_inline_data(inode)) { f2fs_put_dnode(&dn); return -EAGAIN; } f2fs_bug_on(F2FS_I_SB(inode), page->index); f2fs_wait_on_page_writeback(dn.inode_page, NODE); src_addr = kmap_atomic(page); dst_addr = inline_data_addr(dn.inode_page); memcpy(dst_addr, src_addr, MAX_INLINE_DATA); kunmap_atomic(src_addr); set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE); set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); sync_inode_page(&dn); f2fs_put_dnode(&dn); return 0; }
int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node, block_t p_blkaddr) { struct f2fs_inode *inode = &(node->i); unsigned int dir_level = node->i.i_dir_level; nid_t ino = le32_to_cpu(node->footer.ino); char inline_data[MAX_INLINE_DATA(node)]; struct dnode_of_data dn; struct f2fs_dentry_ptr d; unsigned long bit_pos = 0; int ret = 0; if (!(inode->i_inline & F2FS_INLINE_DENTRY)) return 0; memcpy(inline_data, inline_data_addr(node), MAX_INLINE_DATA(node)); memset(inline_data_addr(node), 0, MAX_INLINE_DATA(node)); inode->i_inline &= ~F2FS_INLINE_DENTRY; ret = dev_write_block(node, p_blkaddr); ASSERT(ret >= 0); memset(&dn, 0, sizeof(dn)); if (!dir_level) { struct f2fs_dentry_block *dentry_blk; struct f2fs_dentry_ptr src, dst; dentry_blk = calloc(BLOCK_SZ, 1); ASSERT(dentry_blk); set_new_dnode(&dn, node, NULL, ino); get_dnode_of_data(sbi, &dn, 0, ALLOC_NODE); if (dn.data_blkaddr == NULL_ADDR) new_data_block(sbi, dentry_blk, &dn, CURSEG_HOT_DATA); make_dentry_ptr(&src, node, (void *)inline_data, 2); make_dentry_ptr(&dst, NULL, (void *)dentry_blk, 1); /* copy data from inline dentry block to new dentry block */ memcpy(dst.bitmap, src.bitmap, src.nr_bitmap); memset(dst.bitmap + src.nr_bitmap, 0, dst.nr_bitmap - src.nr_bitmap); memcpy(dst.dentry, src.dentry, SIZE_OF_DIR_ENTRY * src.max); memcpy(dst.filename, src.filename, src.max * F2FS_SLOT_LEN); ret = dev_write_block(dentry_blk, dn.data_blkaddr); ASSERT(ret >= 0); MSG(1, "%s: copy inline entry to block\n", __func__); free(dentry_blk); return ret; } make_empty_dir(sbi, node); make_dentry_ptr(&d, node, (void *)inline_data, 2); while (bit_pos < (unsigned long)d.max) { struct f2fs_dir_entry *de; const unsigned char *filename; int namelen; if (!test_bit_le(bit_pos, d.bitmap)) { bit_pos++; continue; } de = &d.dentry[bit_pos]; if (!de->name_len) { bit_pos++; continue; } filename = d.filename[bit_pos]; namelen = le32_to_cpu(de->name_len); if (is_dot_dotdot(filename, namelen)) { bit_pos += GET_DENTRY_SLOTS(namelen); continue; } ret = f2fs_add_link(sbi, node, filename, namelen, le32_to_cpu(de->ino), de->file_type, p_blkaddr, 0); if (ret) MSG(0, "Convert file \"%s\" ERR=%d\n", filename, ret); else MSG(1, "%s: add inline entry to block\n", __func__); bit_pos += GET_DENTRY_SLOTS(namelen); } return 0; }
static void truncate_inline_data(struct page *ipage) { f2fs_wait_on_page_writeback(ipage, NODE); memset(inline_data_addr(ipage), 0, MAX_INLINE_DATA); }
int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; unsigned int bit_pos; f2fs_hash_t name_hash; struct f2fs_dir_entry *de; size_t namelen = name->len; struct f2fs_inline_dentry *dentry_blk = NULL; int slots = GET_DENTRY_SLOTS(namelen); struct page *page; int err = 0; int i; name_hash = f2fs_dentry_hash(name); ipage = get_node_page(sbi, dir->i_ino); if (IS_ERR(ipage)) return PTR_ERR(ipage); dentry_blk = inline_data_addr(ipage); bit_pos = room_for_filename(&dentry_blk->dentry_bitmap, slots, NR_INLINE_DENTRY); if (bit_pos >= NR_INLINE_DENTRY) { err = f2fs_convert_inline_dir(dir, ipage, dentry_blk); if (!err) err = -EAGAIN; goto out; } down_write(&F2FS_I(inode)->i_sem); page = init_inode_metadata(inode, dir, name, ipage); if (IS_ERR(page)) { err = PTR_ERR(page); goto fail; } f2fs_wait_on_page_writeback(ipage, NODE); de = &dentry_blk->dentry[bit_pos]; de->hash_code = name_hash; de->name_len = cpu_to_le16(namelen); memcpy(dentry_blk->filename[bit_pos], name->name, name->len); de->ino = cpu_to_le32(inode->i_ino); set_de_type(de, inode); for (i = 0; i < slots; i++) test_and_set_bit_le(bit_pos + i, &dentry_blk->dentry_bitmap); set_page_dirty(ipage); /* we don't need to mark_inode_dirty now */ F2FS_I(inode)->i_pino = dir->i_ino; update_inode(inode, page); f2fs_put_page(page, 1); update_parent_metadata(dir, inode, 0); fail: up_write(&F2FS_I(inode)->i_sem); if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { update_inode(dir, ipage); clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); } out: f2fs_put_page(ipage, 1); return err; }
int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, const struct qstr *orig_name, struct inode *inode, nid_t ino, umode_t mode) { struct f2fs_sb_info *sbi = F2FS_I_SB(dir); struct page *ipage; unsigned int bit_pos; f2fs_hash_t name_hash; struct f2fs_inline_dentry *inline_dentry = NULL; struct f2fs_dentry_ptr d; int slots = GET_DENTRY_SLOTS(new_name->len); struct page *page = NULL; int err = 0; ipage = get_node_page(sbi, dir->i_ino); if (IS_ERR(ipage)) return PTR_ERR(ipage); inline_dentry = inline_data_addr(ipage); bit_pos = room_for_filename(&inline_dentry->dentry_bitmap, slots, NR_INLINE_DENTRY); if (bit_pos >= NR_INLINE_DENTRY) { err = f2fs_convert_inline_dir(dir, ipage, inline_dentry); if (err) return err; err = -EAGAIN; goto out; } if (inode) { down_write(&F2FS_I(inode)->i_sem); page = init_inode_metadata(inode, dir, new_name, orig_name, ipage); if (IS_ERR(page)) { err = PTR_ERR(page); goto fail; } } f2fs_wait_on_page_writeback(ipage, NODE, true); name_hash = f2fs_dentry_hash(new_name, NULL); make_dentry_ptr_inline(NULL, &d, inline_dentry); f2fs_update_dentry(ino, mode, &d, new_name, name_hash, bit_pos); set_page_dirty(ipage); /* we don't need to mark_inode_dirty now */ if (inode) { f2fs_i_pino_write(inode, dir->i_ino); f2fs_put_page(page, 1); } update_parent_metadata(dir, inode, 0); fail: if (inode) up_write(&F2FS_I(inode)->i_sem); out: f2fs_put_page(ipage, 1); return err; }
int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page) { struct f2fs_io_info fio = { .sbi = F2FS_I_SB(dn->inode), .type = DATA, .op = REQ_OP_WRITE, .op_flags = REQ_SYNC | REQ_PRIO, .page = page, .encrypted_page = NULL, }; int dirty, err; if (!f2fs_exist_data(dn->inode)) goto clear_out; err = f2fs_reserve_block(dn, 0); if (err) return err; f2fs_bug_on(F2FS_P_SB(page), PageWriteback(page)); read_inline_data(page, dn->inode_page); set_page_dirty(page); /* clear dirty state */ dirty = clear_page_dirty_for_io(page); /* write data page to try to make data consistent */ set_page_writeback(page); fio.old_blkaddr = dn->data_blkaddr; set_inode_flag(dn->inode, FI_HOT_DATA); write_data_page(dn, &fio); f2fs_wait_on_page_writeback(page, DATA, true); if (dirty) { inode_dec_dirty_pages(dn->inode); remove_dirty_inode(dn->inode); } /* this converted inline_data should be recovered. */ set_inode_flag(dn->inode, FI_APPEND_WRITE); /* clear inline data and flag after data writeback */ truncate_inline_inode(dn->inode, dn->inode_page, 0); clear_inline_node(dn->inode_page); clear_out: stat_dec_inline_inode(dn->inode); clear_inode_flag(dn->inode, FI_INLINE_DATA); f2fs_put_dnode(dn); return 0; } int f2fs_convert_inline_inode(struct inode *inode) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct dnode_of_data dn; struct page *ipage, *page; int err = 0; if (!f2fs_has_inline_data(inode)) return 0; page = f2fs_grab_cache_page(inode->i_mapping, 0, false); if (!page) return -ENOMEM; f2fs_lock_op(sbi); ipage = get_node_page(sbi, inode->i_ino); if (IS_ERR(ipage)) { err = PTR_ERR(ipage); goto out; } set_new_dnode(&dn, inode, ipage, ipage, 0); if (f2fs_has_inline_data(inode)) err = f2fs_convert_inline_page(&dn, page); f2fs_put_dnode(&dn); out: f2fs_unlock_op(sbi); f2fs_put_page(page, 1); f2fs_balance_fs(sbi, dn.node_changed); return err; } int f2fs_write_inline_data(struct inode *inode, struct page *page) { void *src_addr, *dst_addr; struct dnode_of_data dn; int err; set_new_dnode(&dn, inode, NULL, NULL, 0); err = get_dnode_of_data(&dn, 0, LOOKUP_NODE); if (err) return err; if (!f2fs_has_inline_data(inode)) { f2fs_put_dnode(&dn); return -EAGAIN; } f2fs_bug_on(F2FS_I_SB(inode), page->index); f2fs_wait_on_page_writeback(dn.inode_page, NODE, true); src_addr = kmap_atomic(page); dst_addr = inline_data_addr(dn.inode_page); memcpy(dst_addr, src_addr, MAX_INLINE_DATA); kunmap_atomic(src_addr); set_page_dirty(dn.inode_page); set_inode_flag(inode, FI_APPEND_WRITE); set_inode_flag(inode, FI_DATA_EXIST); clear_inline_node(dn.inode_page); f2fs_put_dnode(&dn); return 0; }