On Mon, 27 Jul 2015 11:07:25 +0800 Kinglong Mee <kinglongmee@xxxxxxxxx>
wrote:
> Exports functions for others who want pin to vfsmount,
> eg, nfsd's export cache.
>
> v8, same as v4
> add exporting of pin_kill.
>
> Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
Reviewed-by: NeilBrown <neilb@xxxxxxxx>
These are needed for any module to participate in pinning.
mnt_pin_kill() and group_pin_kill() are just helper-functions for
unmount etc (and are in fs/internal.h) so don't need to be exported.
Thanks,
NeilBrown
> ---
> fs/fs_pin.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/fs/fs_pin.c b/fs/fs_pin.c
> index 611b540..a1a4eb2 100644
> --- a/fs/fs_pin.c
> +++ b/fs/fs_pin.c
> @@ -17,6 +17,7 @@ void pin_remove(struct fs_pin *pin)
> wake_up_locked(&pin->wait);
> spin_unlock_irq(&pin->wait.lock);
> }
> +EXPORT_SYMBOL(pin_remove);
>
> void pin_insert_group(struct fs_pin *pin, struct vfsmount *m, struct hlist_head *p)
> {
> @@ -26,11 +27,13 @@ void pin_insert_group(struct fs_pin *pin, struct vfsmount *m, struct hlist_head
> hlist_add_head(&pin->m_list, &real_mount(m)->mnt_pins);
> spin_unlock(&pin_lock);
> }
> +EXPORT_SYMBOL(pin_insert_group);
>
> void pin_insert(struct fs_pin *pin, struct vfsmount *m)
> {
> pin_insert_group(pin, m, &m->mnt_sb->s_pins);
> }
> +EXPORT_SYMBOL(pin_insert);
>
> void pin_kill(struct fs_pin *p)
> {
> @@ -72,6 +75,7 @@ void pin_kill(struct fs_pin *p)
> }
> rcu_read_unlock();
> }
> +EXPORT_SYMBOL(pin_kill);
>
> void mnt_pin_kill(struct mount *m)
> {
--
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