similar to tracefs - simulation of normal codepath for creation, simple_recursive_removal() for removal.
Acked-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Al Viro <[email protected]> --- fs/debugfs/inode.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 661a99a7dfbe..682120fdbb17 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -329,7 +329,7 @@ static struct file_system_type debug_fs_type = { .name = "debugfs", .init_fs_context = debugfs_init_fs_context, .parameters = debugfs_param_specs, - .kill_sb = kill_litter_super, + .kill_sb = kill_anon_super, }; MODULE_ALIAS_FS("debugfs"); @@ -405,16 +405,15 @@ static struct dentry *debugfs_start_creating(const char *name, static struct dentry *failed_creating(struct dentry *dentry) { - inode_unlock(d_inode(dentry->d_parent)); - dput(dentry); + simple_done_creating(dentry); simple_release_fs(&debugfs_mount, &debugfs_mount_count); return ERR_PTR(-ENOMEM); } static struct dentry *end_creating(struct dentry *dentry) { - inode_unlock(d_inode(dentry->d_parent)); - return dentry; + simple_done_creating(dentry); + return dentry; // borrowed } static struct dentry *__debugfs_create_file(const char *name, umode_t mode, @@ -456,7 +455,7 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode, DEBUGFS_I(inode)->raw = real_fops; DEBUGFS_I(inode)->aux = (void *)aux; - d_instantiate(dentry, inode); + d_make_persistent(dentry, inode); fsnotify_create(d_inode(dentry->d_parent), dentry); return end_creating(dentry); } @@ -602,7 +601,7 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent) /* directory inodes start off with i_nlink == 2 (for "." entry) */ inc_nlink(inode); - d_instantiate(dentry, inode); + d_make_persistent(dentry, inode); inc_nlink(d_inode(dentry->d_parent)); fsnotify_mkdir(d_inode(dentry->d_parent), dentry); return end_creating(dentry); @@ -649,7 +648,7 @@ struct dentry *debugfs_create_automount(const char *name, DEBUGFS_I(inode)->automount = f; /* directory inodes start off with i_nlink == 2 (for "." entry) */ inc_nlink(inode); - d_instantiate(dentry, inode); + d_make_persistent(dentry, inode); inc_nlink(d_inode(dentry->d_parent)); fsnotify_mkdir(d_inode(dentry->d_parent), dentry); return end_creating(dentry); @@ -704,7 +703,7 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent, inode->i_mode = S_IFLNK | S_IRWXUGO; inode->i_op = &debugfs_symlink_inode_operations; inode->i_link = link; - d_instantiate(dentry, inode); + d_make_persistent(dentry, inode); return end_creating(dentry); } EXPORT_SYMBOL_GPL(debugfs_create_symlink); -- 2.47.3
