struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
struct f2fs_filename *fname, struct page **res_page,
unsigned int flags)
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct f2fs_inline_dentry *inline_dentry;
struct qstr name = FSTR_TO_QSTR(&fname->disk_name);
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
struct page *ipage;
f2fs_hash_t namehash;
ipage = get_node_page(sbi, dir->i_ino);
if (IS_ERR(ipage))
return NULL;
namehash = f2fs_dentry_hash(&name);
inline_dentry = inline_data_addr(ipage);
make_dentry_ptr(NULL, &d, (void *)inline_dentry, 2);
de = find_target_dentry(fname, namehash, NULL, &d, flags);
unlock_page(ipage);
if (de)
*res_page = ipage;
else
f2fs_put_page(ipage, 0);
/*
* For the most part, it should be a bug when name_len is zero.
* We stop here for figuring out where the bugs has occurred.
*/
f2fs_bug_on(sbi, d.max < 0);
return de;
}
static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
struct qstr *name, int *max_slots,
struct page **res_page,
unsigned int flags)
{
struct f2fs_dentry_block *dentry_blk;
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
dentry_blk = (struct f2fs_dentry_block *)kmap(dentry_page);
make_dentry_ptr(&d, (void *)dentry_blk, 1);
de = find_target_dentry(name, max_slots, &d, flags);
if (de)
*res_page = dentry_page;
else
kunmap(dentry_page);
/*
* For the most part, it should be a bug when name_len is zero.
* We stop here for figuring out where the bugs has occurred.
*/
f2fs_bug_on(F2FS_P_SB(dentry_page), d.max < 0);
return de;
}
struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
struct qstr *name, struct page **res_page)
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct f2fs_inline_dentry *inline_dentry;
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
struct page *ipage;
ipage = get_node_page(sbi, dir->i_ino);
if (IS_ERR(ipage))
return NULL;
inline_dentry = inline_data_addr(ipage);
make_dentry_ptr(&d, (void *)inline_dentry, 2);
de = find_target_dentry(name, NULL, &d);
unlock_page(ipage);
if (de)
*res_page = ipage;
else
f2fs_put_page(ipage, 0);
/*
* For the most part, it should be a bug when name_len is zero.
* We stop here for figuring out where the bugs has occurred.
*/
f2fs_bug_on(sbi, d.max < 0);
return de;
}
struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
struct fscrypt_name *fname, struct page **res_page)
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct f2fs_inline_dentry *inline_dentry;
struct qstr name = FSTR_TO_QSTR(&fname->disk_name);
struct f2fs_dir_entry *de;
struct f2fs_dentry_ptr d;
struct page *ipage;
f2fs_hash_t namehash;
ipage = get_node_page(sbi, dir->i_ino);
if (IS_ERR(ipage)) {
*res_page = ipage;
return NULL;
}
namehash = f2fs_dentry_hash(&name, fname);
inline_dentry = inline_data_addr(ipage);
make_dentry_ptr_inline(NULL, &d, inline_dentry);
de = find_target_dentry(fname, namehash, NULL, &d);
unlock_page(ipage);
if (de)
*res_page = ipage;
else
f2fs_put_page(ipage, 0);
return de;
}
static struct f2fs_dir_entry *find_in_block(void *block,
const u8 *name, int len, f2fs_hash_t namehash,
int *max_slots)
{
struct f2fs_dentry_ptr d;
make_dentry_ptr(&d, NULL, block, 1);
return find_target_dentry(name, len, namehash, max_slots, &d);
}
