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Message-ID: <de77ec5ade7fac7e72445cb2d10d95efe8bf9c92.camel@kernel.org>
Subject: Re: [PATCH v3 04/47] filelock: add some new helper functions
From: Jeff Layton <jlayton@kernel.org>
To: Christian Brauner <brauner@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>, Masami Hiramatsu
 <mhiramat@kernel.org>,  Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
 Chuck Lever <chuck.lever@oracle.com>, Alexander Viro
 <viro@zeniv.linux.org.uk>, Jan Kara <jack@suse.cz>, Eric Van Hensbergen
 <ericvh@kernel.org>, Latchesar Ionkov <lucho@ionkov.net>, Dominique
 Martinet <asmadeus@codewreck.org>, Christian Schoenebeck
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Date: Mon, 05 Feb 2024 06:55:44 -0500
In-Reply-To: <20240205-wegschauen-unappetitlich-2b0926023605@brauner>
References: <20240131-flsplit-v3-0-c6129007ee8d@kernel.org>
	 <20240131-flsplit-v3-4-c6129007ee8d@kernel.org>
	 <20240205-wegschauen-unappetitlich-2b0926023605@brauner>
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On Mon, 2024-02-05 at 12:36 +0100, Christian Brauner wrote:
> > diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> > index 085ff6ba0653..a814664b1053 100644
> > --- a/include/linux/filelock.h
> > +++ b/include/linux/filelock.h
> > @@ -147,6 +147,29 @@ int fcntl_setlk64(unsigned int, struct file *, uns=
igned int,
> > =A0int fcntl_setlease(unsigned int fd, struct file *filp, int arg);
> > =A0int fcntl_getlease(struct file *filp);
> > =A0
> >=20
> >=20
> >=20
> >=20
> >=20
> >=20
> >=20
> > +static inline bool lock_is_unlock(struct file_lock *fl)
> > +{
> > +	return fl->fl_type =3D=3D F_UNLCK;
> > +}
> > +
> > +static inline bool lock_is_read(struct file_lock *fl)
> > +{
> > +	return fl->fl_type =3D=3D F_RDLCK;
> > +}
> > +
> > +static inline bool lock_is_write(struct file_lock *fl)
> > +{
> > +	return fl->fl_type =3D=3D F_WRLCK;
> > +}
> > +
> > +static inline void locks_wake_up(struct file_lock *fl)
> > +{
> > +	wake_up(&fl->fl_wait);
> > +}
> > +
> > +/* for walking lists of file_locks linked by fl_list */
> > +#define for_each_file_lock(_fl, _head)	list_for_each_entry(_fl, _head,=
 fl_list)
> > +
>=20
> This causes a build warning for fs/ceph/ and fs/afs when
> !CONFIG_FILE_LOCKING. I'm about to fold the following diff into this
> patch. The diff looks a bit wonky but essentially I've moved
> lock_is_unlock(), lock_is_{read,write}(), locks_wake_up() and
> for_each_file_lock() out of the ifdef CONFIG_FILE_LOCKING:
>=20

I sent a patch for this problem yesterday. Did you not get it?


> diff --git a/include/linux/filelock.h b/include/linux/filelock.h
> index a814664b1053..62be9c6b1e59 100644
> --- a/include/linux/filelock.h
> +++ b/include/linux/filelock.h
> @@ -133,20 +133,6 @@ struct file_lock_context {
> =A0=A0=A0=A0=A0=A0=A0=A0struct list_head        flc_lease;
> =A0};
>=20
> -#ifdef CONFIG_FILE_LOCKING
> -int fcntl_getlk(struct file *, unsigned int, struct flock *);
> -int fcntl_setlk(unsigned int, struct file *, unsigned int,
> -                       struct flock *);
> -
> -#if BITS_PER_LONG =3D=3D 32
> -int fcntl_getlk64(struct file *, unsigned int, struct flock64 *);
> -int fcntl_setlk64(unsigned int, struct file *, unsigned int,
> -                       struct flock64 *);
> -#endif
> -
> -int fcntl_setlease(unsigned int fd, struct file *filp, int arg);
> -int fcntl_getlease(struct file *filp);
> -
> =A0static inline bool lock_is_unlock(struct file_lock *fl)
> =A0{
> =A0=A0=A0=A0=A0=A0=A0=A0return fl->fl_type =3D=3D F_UNLCK;
> @@ -170,6 +156,20 @@ static inline void locks_wake_up(struct file_lock *f=
l)
> =A0/* for walking lists of file_locks linked by fl_list */
> =A0#define for_each_file_lock(_fl, _head) list_for_each_entry(_fl, _head,=
 fl_list)
>=20
> +#ifdef CONFIG_FILE_LOCKING
> +int fcntl_getlk(struct file *, unsigned int, struct flock *);
> +int fcntl_setlk(unsigned int, struct file *, unsigned int,
> +                       struct flock *);
> +
> +#if BITS_PER_LONG =3D=3D 32
> +int fcntl_getlk64(struct file *, unsigned int, struct flock64 *);
> +int fcntl_setlk64(unsigned int, struct file *, unsigned int,
> +                       struct flock64 *);
> +#endif
> +
> +int fcntl_setlease(unsigned int fd, struct file *filp, int arg);
> +int fcntl_getlease(struct file *filp);
> +
> =A0/* fs/locks.c */
> =A0void locks_free_lock_context(struct inode *inode);
> =A0void locks_free_lock(struct file_lock *fl);
>=20

--=20
Jeff Layton <jlayton@kernel.org>