From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/ext2/namei.c | 47 ++++++++++++++++++++++++++---------------------
1 files changed, 26 insertions(+), 21 deletions(-)
diff --git a/kernel/fs/ext2/namei.c b/kernel/fs/ext2/namei.c
index 0c26dcc..5bf2c14 100644
--- a/kernel/fs/ext2/namei.c
+++ b/kernel/fs/ext2/namei.c
@@ -57,13 +57,17 @@
{
struct inode * inode;
ino_t ino;
+ int res;
if (dentry->d_name.len > EXT2_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
- ino = ext2_inode_by_name(dir, &dentry->d_name);
- inode = NULL;
- if (ino) {
+ res = ext2_inode_by_name(dir, &dentry->d_name, &ino);
+ if (res) {
+ if (res != -ENOENT)
+ return ERR_PTR(res);
+ inode = NULL;
+ } else {
inode = ext2_iget(dir->i_sb, ino);
if (inode == ERR_PTR(-ESTALE)) {
ext2_error(dir->i_sb, __func__,
@@ -78,9 +82,13 @@
struct dentry *ext2_get_parent(struct dentry *child)
{
struct qstr dotdot = QSTR_INIT("..", 2);
- unsigned long ino = ext2_inode_by_name(d_inode(child), &dotdot);
- if (!ino)
- return ERR_PTR(-ENOENT);
+ ino_t ino;
+ int res;
+
+ res = ext2_inode_by_name(d_inode(child), &dotdot, &ino);
+ if (res)
+ return ERR_PTR(res);
+
return d_obtain_alias(ext2_iget(child->d_sb, ino));
}
@@ -136,9 +144,7 @@
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
init_special_inode(inode, inode->i_mode, rdev);
-#ifdef CONFIG_EXT2_FS_XATTR
inode->i_op = &ext2_special_inode_operations;
-#endif
mark_inode_dirty(inode);
err = ext2_add_nondir(dentry, inode);
}
@@ -276,9 +282,9 @@
if (err)
goto out;
- de = ext2_find_entry (dir, &dentry->d_name, &page);
- if (!de) {
- err = -ENOENT;
+ de = ext2_find_entry(dir, &dentry->d_name, &page);
+ if (IS_ERR(de)) {
+ err = PTR_ERR(de);
goto out;
}
@@ -332,9 +338,9 @@
if (err)
goto out;
- old_de = ext2_find_entry (old_dir, &old_dentry->d_name, &old_page);
- if (!old_de) {
- err = -ENOENT;
+ old_de = ext2_find_entry(old_dir, &old_dentry->d_name, &old_page);
+ if (IS_ERR(old_de)) {
+ err = PTR_ERR(old_de);
goto out;
}
@@ -353,10 +359,11 @@
if (dir_de && !ext2_empty_dir (new_inode))
goto out_dir;
- err = -ENOENT;
- new_de = ext2_find_entry (new_dir, &new_dentry->d_name, &new_page);
- if (!new_de)
+ new_de = ext2_find_entry(new_dir, &new_dentry->d_name, &new_page);
+ if (IS_ERR(new_de)) {
+ err = PTR_ERR(new_de);
goto out_dir;
+ }
ext2_set_link(new_dir, new_de, new_page, old_inode, 1);
new_inode->i_ctime = current_time(new_inode);
if (dir_de)
@@ -413,9 +420,8 @@
.rmdir = ext2_rmdir,
.mknod = ext2_mknod,
.rename = ext2_rename,
-#ifdef CONFIG_EXT2_FS_XATTR
.listxattr = ext2_listxattr,
-#endif
+ .getattr = ext2_getattr,
.setattr = ext2_setattr,
.get_acl = ext2_get_acl,
.set_acl = ext2_set_acl,
@@ -423,9 +429,8 @@
};
const struct inode_operations ext2_special_inode_operations = {
-#ifdef CONFIG_EXT2_FS_XATTR
.listxattr = ext2_listxattr,
-#endif
+ .getattr = ext2_getattr,
.setattr = ext2_setattr,
.get_acl = ext2_get_acl,
.set_acl = ext2_set_acl,
--
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