diff options
Diffstat (limited to 'fs/bfs/dir.c')
-rw-r--r-- | fs/bfs/dir.c | 43 |
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) |