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Diffstat (limited to 'fs/bfs/dir.c')
-rw-r--r--fs/bfs/dir.c43
1 files changed, 16 insertions, 27 deletions
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index ee832ca5f734..f32f21c3bbc7 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -21,10 +21,9 @@
#define dprintf(x...)
#endif
-static int bfs_add_entry(struct inode *dir, const unsigned char *name,
- int namelen, int ino);
+static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino);
static struct buffer_head *bfs_find_entry(struct inode *dir,
- const unsigned char *name, int namelen,
+ const struct qstr *child,
struct bfs_dirent **res_dir);
static int bfs_readdir(struct file *f, struct dir_context *ctx)
@@ -111,8 +110,7 @@ static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
mark_inode_dirty(inode);
bfs_dump_imap("create", s);
- err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len,
- inode->i_ino);
+ err = bfs_add_entry(dir, &dentry->d_name, inode->i_ino);
if (err) {
inode_dec_link_count(inode);
mutex_unlock(&info->bfs_lock);
@@ -136,19 +134,14 @@ static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(-ENAMETOOLONG);
mutex_lock(&info->bfs_lock);
- bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
+ bh = bfs_find_entry(dir, &dentry->d_name, &de);
if (bh) {
unsigned long ino = (unsigned long)le16_to_cpu(de->ino);
brelse(bh);
inode = bfs_iget(dir->i_sb, ino);
- if (IS_ERR(inode)) {
- mutex_unlock(&info->bfs_lock);
- return ERR_CAST(inode);
- }
}
mutex_unlock(&info->bfs_lock);
- d_add(dentry, inode);
- return NULL;
+ return d_splice_alias(inode, dentry);
}
static int bfs_link(struct dentry *old, struct inode *dir,
@@ -159,8 +152,7 @@ static int bfs_link(struct dentry *old, struct inode *dir,
int err;
mutex_lock(&info->bfs_lock);
- err = bfs_add_entry(dir, new->d_name.name, new->d_name.len,
- inode->i_ino);
+ err = bfs_add_entry(dir, &new->d_name, inode->i_ino);
if (err) {
mutex_unlock(&info->bfs_lock);
return err;
@@ -183,7 +175,7 @@ static int bfs_unlink(struct inode *dir, struct dentry *dentry)
struct bfs_sb_info *info = BFS_SB(inode->i_sb);
mutex_lock(&info->bfs_lock);
- bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
+ bh = bfs_find_entry(dir, &dentry->d_name, &de);
if (!bh || (le16_to_cpu(de->ino) != inode->i_ino))
goto out_brelse;
@@ -228,27 +220,21 @@ static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
info = BFS_SB(old_inode->i_sb);
mutex_lock(&info->bfs_lock);
- old_bh = bfs_find_entry(old_dir,
- old_dentry->d_name.name,
- old_dentry->d_name.len, &old_de);
+ old_bh = bfs_find_entry(old_dir, &old_dentry->d_name, &old_de);
if (!old_bh || (le16_to_cpu(old_de->ino) != old_inode->i_ino))
goto end_rename;
error = -EPERM;
new_inode = d_inode(new_dentry);
- new_bh = bfs_find_entry(new_dir,
- new_dentry->d_name.name,
- new_dentry->d_name.len, &new_de);
+ new_bh = bfs_find_entry(new_dir, &new_dentry->d_name, &new_de);
if (new_bh && !new_inode) {
brelse(new_bh);
new_bh = NULL;
}
if (!new_bh) {
- error = bfs_add_entry(new_dir,
- new_dentry->d_name.name,
- new_dentry->d_name.len,
+ error = bfs_add_entry(new_dir, &new_dentry->d_name,
old_inode->i_ino);
if (error)
goto end_rename;
@@ -278,9 +264,10 @@ const struct inode_operations bfs_dir_inops = {
.rename = bfs_rename,
};
-static int bfs_add_entry(struct inode *dir, const unsigned char *name,
- int namelen, int ino)
+static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino)
{
+ const unsigned char *name = child->name;
+ int namelen = child->len;
struct buffer_head *bh;
struct bfs_dirent *de;
int block, sblock, eblock, off, pos;
@@ -332,12 +319,14 @@ static inline int bfs_namecmp(int len, const unsigned char *name,
}
static struct buffer_head *bfs_find_entry(struct inode *dir,
- const unsigned char *name, int namelen,
+ const struct qstr *child,
struct bfs_dirent **res_dir)
{
unsigned long block = 0, offset = 0;
struct buffer_head *bh = NULL;
struct bfs_dirent *de;
+ const unsigned char *name = child->name;
+ int namelen = child->len;
*res_dir = NULL;
if (namelen > BFS_NAMELEN)