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Diffstat (limited to 'fs/ext4/namei.c')
-rw-r--r--fs/ext4/namei.c106
1 files changed, 23 insertions, 83 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index ef22cd951c0c..814f3beb4369 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -640,7 +640,7 @@ static struct stats dx_show_leaf(struct inode *dir,
ext4_put_fname_crypto_ctx(&ctx);
ctx = NULL;
}
- res = ext4_fname_disk_to_usr(ctx, de,
+ res = ext4_fname_disk_to_usr(ctx, NULL, de,
&fname_crypto_str);
if (res < 0) {
printk(KERN_WARNING "Error "
@@ -653,15 +653,8 @@ static struct stats dx_show_leaf(struct inode *dir,
name = fname_crypto_str.name;
len = fname_crypto_str.len;
}
- res = ext4_fname_disk_to_hash(ctx, de,
- &h);
- if (res < 0) {
- printk(KERN_WARNING "Error "
- "converting filename "
- "from disk to htree"
- "\n");
- h.hash = 0xDEADBEEF;
- }
+ ext4fs_dirhash(de->name, de->name_len,
+ &h);
printk("%*.s:(E)%x.%u ", len, name,
h.hash, (unsigned) ((char *) de
- base));
@@ -1008,15 +1001,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
/* silently ignore the rest of the block */
break;
}
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- err = ext4_fname_disk_to_hash(ctx, de, hinfo);
- if (err < 0) {
- count = err;
- goto errout;
- }
-#else
ext4fs_dirhash(de->name, de->name_len, hinfo);
-#endif
if ((hinfo->hash < start_hash) ||
((hinfo->hash == start_hash) &&
(hinfo->minor_hash < start_minor_hash)))
@@ -1032,7 +1017,7 @@ static int htree_dirblock_to_tree(struct file *dir_file,
&tmp_str);
} else {
/* Directory is encrypted */
- err = ext4_fname_disk_to_usr(ctx, de,
+ err = ext4_fname_disk_to_usr(ctx, hinfo, de,
&fname_crypto_str);
if (err < 0) {
count = err;
@@ -1193,26 +1178,10 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
int count = 0;
char *base = (char *) de;
struct dx_hash_info h = *hinfo;
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- struct ext4_fname_crypto_ctx *ctx = NULL;
- int err;
-
- ctx = ext4_get_fname_crypto_ctx(dir, EXT4_NAME_LEN);
- if (IS_ERR(ctx))
- return PTR_ERR(ctx);
-#endif
while ((char *) de < base + blocksize) {
if (de->name_len && de->inode) {
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- err = ext4_fname_disk_to_hash(ctx, de, &h);
- if (err < 0) {
- ext4_put_fname_crypto_ctx(&ctx);
- return err;
- }
-#else
ext4fs_dirhash(de->name, de->name_len, &h);
-#endif
map_tail--;
map_tail->hash = h.hash;
map_tail->offs = ((char *) de - base)>>2;
@@ -1223,9 +1192,6 @@ static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
/* XXX: do we need to check rec_len == 0 case? -Chris */
de = ext4_next_entry(de, blocksize);
}
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
- ext4_put_fname_crypto_ctx(&ctx);
-#endif
return count;
}
@@ -1287,16 +1253,8 @@ static inline int ext4_match(struct ext4_fname_crypto_ctx *ctx,
return 0;
#ifdef CONFIG_EXT4_FS_ENCRYPTION
- if (ctx) {
- /* Directory is encrypted */
- res = ext4_fname_disk_to_usr(ctx, de, fname_crypto_str);
- if (res < 0)
- return res;
- if (len != res)
- return 0;
- res = memcmp(name, fname_crypto_str->name, len);
- return (res == 0) ? 1 : 0;
- }
+ if (ctx)
+ return ext4_fname_match(ctx, fname_crypto_str, len, name, de);
#endif
if (len != de->name_len)
return 0;
@@ -1324,16 +1282,6 @@ int search_dir(struct buffer_head *bh, char *search_buf, int buf_size,
if (IS_ERR(ctx))
return -1;
- if (ctx != NULL) {
- /* Allocate buffer to hold maximum name length */
- res = ext4_fname_crypto_alloc_buffer(ctx, EXT4_NAME_LEN,
- &fname_crypto_str);
- if (res < 0) {
- ext4_put_fname_crypto_ctx(&ctx);
- return -1;
- }
- }
-
de = (struct ext4_dir_entry_2 *)search_buf;
dlimit = search_buf + buf_size;
while ((char *) de < dlimit) {
@@ -1664,7 +1612,7 @@ struct dentry *ext4_get_parent(struct dentry *child)
struct ext4_dir_entry_2 * de;
struct buffer_head *bh;
- bh = ext4_find_entry(child->d_inode, &dotdot, &de, NULL);
+ bh = ext4_find_entry(d_inode(child), &dotdot, &de, NULL);
if (IS_ERR(bh))
return (struct dentry *) bh;
if (!bh)
@@ -1672,13 +1620,13 @@ struct dentry *ext4_get_parent(struct dentry *child)
ino = le32_to_cpu(de->inode);
brelse(bh);
- if (!ext4_valid_inum(child->d_inode->i_sb, ino)) {
- EXT4_ERROR_INODE(child->d_inode,
+ if (!ext4_valid_inum(d_inode(child)->i_sb, ino)) {
+ EXT4_ERROR_INODE(d_inode(child),
"bad parent inode number: %u", ino);
return ERR_PTR(-EIO);
}
- return d_obtain_alias(ext4_iget_normal(child->d_inode->i_sb, ino));
+ return d_obtain_alias(ext4_iget_normal(d_inode(child)->i_sb, ino));
}
/*
@@ -1872,14 +1820,6 @@ int ext4_find_dest_de(struct inode *dir, struct inode *inode,
return res;
}
reclen = EXT4_DIR_REC_LEN(res);
-
- /* Allocate buffer to hold maximum name length */
- res = ext4_fname_crypto_alloc_buffer(ctx, EXT4_NAME_LEN,
- &fname_crypto_str);
- if (res < 0) {
- ext4_put_fname_crypto_ctx(&ctx);
- return -1;
- }
}
de = (struct ext4_dir_entry_2 *)buf;
@@ -1988,7 +1928,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
struct inode *inode, struct ext4_dir_entry_2 *de,
struct buffer_head *bh)
{
- struct inode *dir = dentry->d_parent->d_inode;
+ struct inode *dir = d_inode(dentry->d_parent);
const char *name = dentry->d_name.name;
int namelen = dentry->d_name.len;
unsigned int blocksize = dir->i_sb->s_blocksize;
@@ -2048,7 +1988,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
struct inode *inode, struct buffer_head *bh)
{
- struct inode *dir = dentry->d_parent->d_inode;
+ struct inode *dir = d_inode(dentry->d_parent);
#ifdef CONFIG_EXT4_FS_ENCRYPTION
struct ext4_fname_crypto_ctx *ctx = NULL;
int res;
@@ -2202,7 +2142,7 @@ out_frames:
static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
struct inode *inode)
{
- struct inode *dir = dentry->d_parent->d_inode;
+ struct inode *dir = d_inode(dentry->d_parent);
struct buffer_head *bh = NULL;
struct ext4_dir_entry_2 *de;
struct ext4_dir_entry_tail *t;
@@ -2287,7 +2227,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
struct dx_entry *entries, *at;
struct dx_hash_info hinfo;
struct buffer_head *bh;
- struct inode *dir = dentry->d_parent->d_inode;
+ struct inode *dir = d_inode(dentry->d_parent);
struct super_block *sb = dir->i_sb;
struct ext4_dir_entry_2 *de;
int err;
@@ -3063,7 +3003,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
/* Initialize quotas before so that eventual writes go in
* separate transaction */
dquot_initialize(dir);
- dquot_initialize(dentry->d_inode);
+ dquot_initialize(d_inode(dentry));
retval = -ENOENT;
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
@@ -3072,7 +3012,7 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
if (!bh)
goto end_rmdir;
- inode = dentry->d_inode;
+ inode = d_inode(dentry);
retval = -EIO;
if (le32_to_cpu(de->inode) != inode->i_ino)
@@ -3132,7 +3072,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
/* Initialize quotas before so that eventual writes go
* in separate transaction */
dquot_initialize(dir);
- dquot_initialize(dentry->d_inode);
+ dquot_initialize(d_inode(dentry));
retval = -ENOENT;
bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
@@ -3141,7 +3081,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
if (!bh)
goto end_unlink;
- inode = dentry->d_inode;
+ inode = d_inode(dentry);
retval = -EIO;
if (le32_to_cpu(de->inode) != inode->i_ino)
@@ -3339,7 +3279,7 @@ static int ext4_link(struct dentry *old_dentry,
struct inode *dir, struct dentry *dentry)
{
handle_t *handle;
- struct inode *inode = old_dentry->d_inode;
+ struct inode *inode = d_inode(old_dentry);
int err, retries = 0;
if (inode->i_nlink >= EXT4_LINK_MAX)
@@ -3613,12 +3553,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
struct ext4_renament old = {
.dir = old_dir,
.dentry = old_dentry,
- .inode = old_dentry->d_inode,
+ .inode = d_inode(old_dentry),
};
struct ext4_renament new = {
.dir = new_dir,
.dentry = new_dentry,
- .inode = new_dentry->d_inode,
+ .inode = d_inode(new_dentry),
};
int force_reread;
int retval;
@@ -3809,12 +3749,12 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
struct ext4_renament old = {
.dir = old_dir,
.dentry = old_dentry,
- .inode = old_dentry->d_inode,
+ .inode = d_inode(old_dentry),
};
struct ext4_renament new = {
.dir = new_dir,
.dentry = new_dentry,
- .inode = new_dentry->d_inode,
+ .inode = d_inode(new_dentry),
};
u8 new_file_type;
int retval;
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-28 05:38:20 +0000