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Commit 02e5180d authored by Al Viro's avatar Al Viro
Browse files

do_dentry_open(): take initialization of file->f_path to caller 



... and get rid of a couple of arguments and a pointless reassignment
in finish_open() case.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 2a027e7a

fs/open.c

+12 −14
Original line number Diff line number Diff line
@@ -667,8 +667,7 @@ int open_check_o_direct(struct file *f) 
	return 0;

}



static int do_dentry_open(struct dentry *dentry, struct vfsmount *mnt,

			  struct file *f,

static int do_dentry_open(struct file *f,

			  int (*open)(struct inode *, struct file *),

			  const struct cred *cred)

{
@@ -682,9 +681,9 @@ static int do_dentry_open(struct dentry *dentry, struct vfsmount *mnt, 
	if (unlikely(f->f_flags & O_PATH))

		f->f_mode = FMODE_PATH;



	inode = dentry->d_inode;

	inode = f->f_path.dentry->d_inode;

	if (f->f_mode & FMODE_WRITE) {

		error = __get_file_write_access(inode, mnt);

		error = __get_file_write_access(inode, f->f_path.mnt);

		if (error)

			goto cleanup_file;

		if (!special_file(inode->i_mode))
@@ -692,8 +691,6 @@ static int do_dentry_open(struct dentry *dentry, struct vfsmount *mnt, 
	}



	f->f_mapping = inode->i_mapping;

	f->f_path.dentry = dentry;

	f->f_path.mnt = mnt;

	f->f_pos = 0;

	file_sb_list_add(f, inode->i_sb);
@@ -740,15 +737,14 @@ static int do_dentry_open(struct dentry *dentry, struct vfsmount *mnt, 
			 * here, so just reset the state.

			 */

			file_reset_write(f);

			mnt_drop_write(mnt);

			mnt_drop_write(f->f_path.mnt);

		}

	}

	file_sb_list_del(f);

	f->f_path.dentry = NULL;

	f->f_path.mnt = NULL;

cleanup_file:

	dput(dentry);

	mntput(mnt);

	path_put(&f->f_path);

	f->f_path.mnt = NULL;

	f->f_path.dentry = NULL;

	return error;

}
@@ -771,9 +767,9 @@ int finish_open(struct file *file, struct dentry *dentry, 
	BUG_ON(*opened & FILE_OPENED); /* once it's opened, it's opened */



	mntget(file->f_path.mnt);

	dget(dentry);

	file->f_path.dentry = dget(dentry);



	error = do_dentry_open(dentry, file->f_path.mnt, file, open, current_cred());

	error = do_dentry_open(file, open, current_cred());

	if (!error)

		*opened |= FILE_OPENED;
@@ -821,7 +817,9 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, 
	}



	f->f_flags = flags;

	error = do_dentry_open(dentry, mnt, f, NULL, cred);

	f->f_path.mnt = mnt;

	f->f_path.dentry = dentry;

	error = do_dentry_open(f, NULL, cred);

	if (!error) {

		error = open_check_o_direct(f);

		if (error) {