This patch fixes to report the right error number of f2fs_find_entry to its caller.
Signed-off-by: Chao Yu <[email protected]> --- fs/f2fs/dir.c | 10 +++++----- fs/f2fs/f2fs.h | 2 +- fs/f2fs/namei.c | 46 +++++++++++++++++++++++++++++++++++----------- fs/f2fs/recovery.c | 7 +++++-- 4 files changed, 46 insertions(+), 19 deletions(-) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index db4022f..a485f68 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -272,17 +272,17 @@ struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p) return f2fs_find_entry(dir, &dotdot, p); } -ino_t f2fs_inode_by_name(struct inode *dir, struct qstr *qstr) +ino_t f2fs_inode_by_name(struct inode *dir, struct qstr *qstr, + struct page **page) { ino_t res = 0; struct f2fs_dir_entry *de; - struct page *page; - de = f2fs_find_entry(dir, qstr, &page); + de = f2fs_find_entry(dir, qstr, page); if (de) { res = le32_to_cpu(de->ino); - f2fs_dentry_kunmap(dir, page); - f2fs_put_page(page, 0); + f2fs_dentry_kunmap(dir, *page); + f2fs_put_page(*page, 0); } return res; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 55f1a41..c355621 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1918,7 +1918,7 @@ void f2fs_drop_nlink(struct inode *, struct inode *); struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *, struct page **); struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **); -ino_t f2fs_inode_by_name(struct inode *, struct qstr *); +ino_t f2fs_inode_by_name(struct inode *, struct qstr *, struct page **); void f2fs_set_link(struct inode *, struct f2fs_dir_entry *, struct page *, struct inode *); int update_dent_inode(struct inode *, struct inode *, const struct qstr *); diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index c9ba6d7..73fa356 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -202,9 +202,13 @@ out: struct dentry *f2fs_get_parent(struct dentry *child) { struct qstr dotdot = QSTR_INIT("..", 2); - unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot); - if (!ino) + struct page *page; + unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot, &page); + if (!ino) { + if (IS_ERR(page)) + return ERR_CAST(page); return ERR_PTR(-ENOENT); + } return d_obtain_alias(f2fs_iget(child->d_sb, ino)); } @@ -338,8 +342,11 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry) trace_f2fs_unlink_enter(dir, dentry); de = f2fs_find_entry(dir, &dentry->d_name, &page); - if (!de) + if (!de) { + if (IS_ERR(page)) + err = PTR_ERR(page); goto fail; + } f2fs_balance_fs(sbi, true); @@ -658,13 +665,17 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, } old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); - if (!old_entry) + if (!old_entry) { + if (IS_ERR(old_page)) + err = PTR_ERR(old_page); goto out; + } if (S_ISDIR(old_inode->i_mode)) { old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); if (!old_dir_entry) { - err = PTR_ERR(old_dir_page); + if (IS_ERR(old_dir_page)) + err = PTR_ERR(old_dir_page); goto out_old; } } @@ -684,8 +695,11 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, err = -ENOENT; new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); - if (!new_entry) + if (!new_entry) { + if (IS_ERR(new_page)) + err = PTR_ERR(new_page); goto out_whiteout; + } f2fs_balance_fs(sbi, true); @@ -743,7 +757,9 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); if (!old_entry) { - err = -EIO; + err = -ENOENT; + if (IS_ERR(old_page)) + err = PTR_ERR(old_page); f2fs_unlock_op(sbi); goto out_whiteout; } @@ -829,12 +845,18 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, return -EPERM; old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); - if (!old_entry) + if (!old_entry) { + if (IS_ERR(old_page)) + err = PTR_ERR(old_page); goto out; + } new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); - if (!new_entry) + if (!new_entry) { + if (IS_ERR(new_page)) + err = PTR_ERR(new_page); goto out_old; + } /* prepare for updating ".." directory entry info later */ if (old_dir != new_dir) { @@ -842,7 +864,8 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); if (!old_dir_entry) { - err = PTR_ERR(old_dir_page); + if (IS_ERR(old_dir_page)) + err = PTR_ERR(old_dir_page); goto out_new; } } @@ -851,7 +874,8 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, new_dir_entry = f2fs_parent_dir(new_inode, &new_dir_page); if (!new_dir_entry) { - err = PTR_ERR(new_dir_page); + if (IS_ERR(new_dir_page)) + err = PTR_ERR(new_dir_page); goto out_old_dir; } } diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c index a39d84a..5d4461f 100644 --- a/fs/f2fs/recovery.c +++ b/fs/f2fs/recovery.c @@ -153,9 +153,12 @@ retry: f2fs_delete_entry(de, page, dir, einode); iput(einode); goto retry; + } else if (IS_ERR(page)) { + err = PTR_ERR(page); + } else { + err = __f2fs_add_link(dir, &name, inode, + inode->i_ino, inode->i_mode); } - err = __f2fs_add_link(dir, &name, inode, inode->i_ino, inode->i_mode); - goto out; out_unmap_put: -- 2.7.2 ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? 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