diff mbox series

[5/9] simplify vboxsf_dir_atomic_open()

Message ID 20250917232736.2556586-5-viro@zeniv.linux.org.uk
State New
Headers show
Series [1/9] allow finish_no_open(file, ERR_PTR(-E...)) | expand

Commit Message

Al Viro Sept. 17, 2025, 11:27 p.m. UTC
similar to 9p et.al.

Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/vboxsf/dir.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

Comments

Hans de Goede Sept. 18, 2025, 7:34 a.m. UTC | #1
Hi,

On 18-Sep-25 1:27 AM, Al Viro wrote:
> similar to 9p et.al.
> 
> Reviewed-by: NeilBrown <neil@brown.name>
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hansg@kernel.org>

Regards,

Hans



> ---
>  fs/vboxsf/dir.c | 25 +++++++++----------------
>  1 file changed, 9 insertions(+), 16 deletions(-)
> 
> diff --git a/fs/vboxsf/dir.c b/fs/vboxsf/dir.c
> index 770e29ec3557..42bedc4ec7af 100644
> --- a/fs/vboxsf/dir.c
> +++ b/fs/vboxsf/dir.c
> @@ -315,46 +315,39 @@ static int vboxsf_dir_atomic_open(struct inode *parent, struct dentry *dentry,
>  {
>  	struct vboxsf_sbi *sbi = VBOXSF_SBI(parent->i_sb);
>  	struct vboxsf_handle *sf_handle;
> -	struct dentry *res = NULL;
>  	u64 handle;
>  	int err;
>  
>  	if (d_in_lookup(dentry)) {
> -		res = vboxsf_dir_lookup(parent, dentry, 0);
> -		if (IS_ERR(res))
> -			return PTR_ERR(res);
> -
> -		if (res)
> -			dentry = res;
> +		struct dentry *res = vboxsf_dir_lookup(parent, dentry, 0);
> +		if (res || d_really_is_positive(dentry))
> +			return finish_no_open(file, res);
>  	}
>  
>  	/* Only creates */
> -	if (!(flags & O_CREAT) || d_really_is_positive(dentry))
> -		return finish_no_open(file, res);
> +	if (!(flags & O_CREAT))
> +		return finish_no_open(file, NULL);
>  
>  	err = vboxsf_dir_create(parent, dentry, mode, false, flags & O_EXCL, &handle);
>  	if (err)
> -		goto out;
> +		return err;
>  
>  	sf_handle = vboxsf_create_sf_handle(d_inode(dentry), handle, SHFL_CF_ACCESS_READWRITE);
>  	if (IS_ERR(sf_handle)) {
>  		vboxsf_close(sbi->root, handle);
> -		err = PTR_ERR(sf_handle);
> -		goto out;
> +		return PTR_ERR(sf_handle);
>  	}
>  
>  	err = finish_open(file, dentry, generic_file_open);
>  	if (err) {
>  		/* This also closes the handle passed to vboxsf_create_sf_handle() */
>  		vboxsf_release_sf_handle(d_inode(dentry), sf_handle);
> -		goto out;
> +		return err;
>  	}
>  
>  	file->private_data = sf_handle;
>  	file->f_mode |= FMODE_CREATED;
> -out:
> -	dput(res);
> -	return err;
> +	return 0;
>  }
>  
>  static int vboxsf_dir_unlink(struct inode *parent, struct dentry *dentry)
diff mbox series

Patch

diff --git a/fs/vboxsf/dir.c b/fs/vboxsf/dir.c
index 770e29ec3557..42bedc4ec7af 100644
--- a/fs/vboxsf/dir.c
+++ b/fs/vboxsf/dir.c
@@ -315,46 +315,39 @@  static int vboxsf_dir_atomic_open(struct inode *parent, struct dentry *dentry,
 {
 	struct vboxsf_sbi *sbi = VBOXSF_SBI(parent->i_sb);
 	struct vboxsf_handle *sf_handle;
-	struct dentry *res = NULL;
 	u64 handle;
 	int err;
 
 	if (d_in_lookup(dentry)) {
-		res = vboxsf_dir_lookup(parent, dentry, 0);
-		if (IS_ERR(res))
-			return PTR_ERR(res);
-
-		if (res)
-			dentry = res;
+		struct dentry *res = vboxsf_dir_lookup(parent, dentry, 0);
+		if (res || d_really_is_positive(dentry))
+			return finish_no_open(file, res);
 	}
 
 	/* Only creates */
-	if (!(flags & O_CREAT) || d_really_is_positive(dentry))
-		return finish_no_open(file, res);
+	if (!(flags & O_CREAT))
+		return finish_no_open(file, NULL);
 
 	err = vboxsf_dir_create(parent, dentry, mode, false, flags & O_EXCL, &handle);
 	if (err)
-		goto out;
+		return err;
 
 	sf_handle = vboxsf_create_sf_handle(d_inode(dentry), handle, SHFL_CF_ACCESS_READWRITE);
 	if (IS_ERR(sf_handle)) {
 		vboxsf_close(sbi->root, handle);
-		err = PTR_ERR(sf_handle);
-		goto out;
+		return PTR_ERR(sf_handle);
 	}
 
 	err = finish_open(file, dentry, generic_file_open);
 	if (err) {
 		/* This also closes the handle passed to vboxsf_create_sf_handle() */
 		vboxsf_release_sf_handle(d_inode(dentry), sf_handle);
-		goto out;
+		return err;
 	}
 
 	file->private_data = sf_handle;
 	file->f_mode |= FMODE_CREATED;
-out:
-	dput(res);
-	return err;
+	return 0;
 }
 
 static int vboxsf_dir_unlink(struct inode *parent, struct dentry *dentry)