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Diffstat (limited to 'fs/f2fs/namei.c')
-rw-r--r--fs/f2fs/namei.c101
1 files changed, 84 insertions, 17 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index a4dab98c4b7b..28bdf8828e73 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -29,6 +29,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
nid_t ino;
struct inode *inode;
bool nid_free = false;
+ int xattr_size = 0;
int err;
inode = new_inode(dir->i_sb);
@@ -86,11 +87,23 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
if (test_opt(sbi, INLINE_XATTR))
set_inode_flag(inode, FI_INLINE_XATTR);
+
if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
set_inode_flag(inode, FI_INLINE_DATA);
if (f2fs_may_inline_dentry(inode))
set_inode_flag(inode, FI_INLINE_DENTRY);
+ if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
+ f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
+ if (f2fs_has_inline_xattr(inode))
+ xattr_size = sbi->inline_xattr_size;
+ /* Otherwise, will be 0 */
+ } else if (f2fs_has_inline_xattr(inode) ||
+ f2fs_has_inline_dentry(inode)) {
+ xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
+ }
+ F2FS_I(inode)->i_inline_xattr_size = xattr_size;
+
f2fs_init_extent_tree(inode, NULL);
stat_inc_inline_xattr(inode);
@@ -177,6 +190,9 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
nid_t ino = 0;
int err;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
err = dquot_initialize(dir);
if (err)
return err;
@@ -221,6 +237,9 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
int err;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
if (f2fs_encrypted_inode(dir) &&
!fscrypt_has_permitted_context(dir, inode))
return -EPERM;
@@ -331,12 +350,15 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
struct inode *inode = NULL;
struct f2fs_dir_entry *de;
struct page *page;
- nid_t ino;
+ struct dentry *new;
+ nid_t ino = -1;
int err = 0;
unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
+ trace_f2fs_lookup_start(dir, dentry, flags);
+
if (f2fs_encrypted_inode(dir)) {
- int res = fscrypt_get_encryption_info(dir);
+ err = fscrypt_get_encryption_info(dir);
/*
* DCACHE_ENCRYPTED_WITH_KEY is set if the dentry is
@@ -346,18 +368,22 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
if (fscrypt_has_encryption_key(dir))
fscrypt_set_encrypted_dentry(dentry);
fscrypt_set_d_op(dentry);
- if (res && res != -ENOKEY)
- return ERR_PTR(res);
+ if (err && err != -ENOKEY)
+ goto out;
}
- if (dentry->d_name.len > F2FS_NAME_LEN)
- return ERR_PTR(-ENAMETOOLONG);
+ if (dentry->d_name.len > F2FS_NAME_LEN) {
+ err = -ENAMETOOLONG;
+ goto out;
+ }
de = f2fs_find_entry(dir, &dentry->d_name, &page);
if (!de) {
- if (IS_ERR(page))
- return (struct dentry *)page;
- return d_splice_alias(inode, dentry);
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto out;
+ }
+ goto out_splice;
}
ino = le32_to_cpu(de->ino);
@@ -365,19 +391,21 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
f2fs_put_page(page, 0);
inode = f2fs_iget(dir->i_sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
+ if (IS_ERR(inode)) {
+ err = PTR_ERR(inode);
+ goto out;
+ }
if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
err = __recover_dot_dentries(dir, root_ino);
if (err)
- goto err_out;
+ goto out_iput;
}
if (f2fs_has_inline_dots(inode)) {
err = __recover_dot_dentries(inode, dir->i_ino);
if (err)
- goto err_out;
+ goto out_iput;
}
if (f2fs_encrypted_inode(dir) &&
(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
@@ -386,12 +414,18 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
"Inconsistent encryption contexts: %lu/%lu",
dir->i_ino, inode->i_ino);
err = -EPERM;
- goto err_out;
+ goto out_iput;
}
- return d_splice_alias(inode, dentry);
-
-err_out:
+out_splice:
+ new = d_splice_alias(inode, dentry);
+ if (IS_ERR(new))
+ err = PTR_ERR(new);
+ trace_f2fs_lookup_end(dir, dentry, ino, err);
+ return new;
+out_iput:
iput(inode);
+out:
+ trace_f2fs_lookup_end(dir, dentry, ino, err);
return ERR_PTR(err);
}
@@ -405,9 +439,15 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
trace_f2fs_unlink_enter(dir, dentry);
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
err = dquot_initialize(dir);
if (err)
return err;
+ err = dquot_initialize(inode);
+ if (err)
+ return err;
de = f2fs_find_entry(dir, &dentry->d_name, &page);
if (!de) {
@@ -460,6 +500,9 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
struct fscrypt_symlink_data *sd = NULL;
int err;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
if (f2fs_encrypted_inode(dir)) {
err = fscrypt_get_encryption_info(dir);
if (err)
@@ -566,6 +609,9 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct inode *inode;
int err;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
err = dquot_initialize(dir);
if (err)
return err;
@@ -618,6 +664,9 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
struct inode *inode;
int err = 0;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
err = dquot_initialize(dir);
if (err)
return err;
@@ -712,6 +761,9 @@ out:
static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
{
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
+ return -EIO;
+
if (f2fs_encrypted_inode(dir)) {
int err = fscrypt_get_encryption_info(dir);
if (err)
@@ -723,6 +775,9 @@ static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout)
{
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
+ return -EIO;
+
return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout);
}
@@ -742,6 +797,9 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
bool is_old_inline = f2fs_has_inline_dentry(old_dir);
int err = -ENOENT;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
if ((f2fs_encrypted_inode(old_dir) &&
!fscrypt_has_encryption_key(old_dir)) ||
(f2fs_encrypted_inode(new_dir) &&
@@ -767,6 +825,12 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (err)
goto out;
+ if (new_inode) {
+ err = dquot_initialize(new_inode);
+ if (err)
+ goto out;
+ }
+
old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_entry) {
if (IS_ERR(old_page))
@@ -935,6 +999,9 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
int old_nlink = 0, new_nlink = 0;
int err = -ENOENT;
+ if (unlikely(f2fs_cp_error(sbi)))
+ return -EIO;
+
if ((f2fs_encrypted_inode(old_dir) &&
!fscrypt_has_encryption_key(old_dir)) ||
(f2fs_encrypted_inode(new_dir) &&
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.