Displaying 7 results from an estimated 7 matches for "virtio_fs_fiq_release".
2019 Sep 06
2
[PATCH 15/18] virtiofs: Make virtio_fs object refcounted
On Thu, Sep 05, 2019 at 03:48:56PM -0400, Vivek Goyal wrote:
> This object is used both by fuse_connection as well virt device. So make
> this object reference counted and that makes it easy to define life cycle
> of the object.
>
> Now deivce can be removed while filesystem is still mounted. This will
> cleanup all the virtqueues but virtio_fs object will still be around and
2019 Sep 06
2
[PATCH 15/18] virtiofs: Make virtio_fs object refcounted
On Thu, Sep 05, 2019 at 03:48:56PM -0400, Vivek Goyal wrote:
> This object is used both by fuse_connection as well virt device. So make
> this object reference counted and that makes it easy to define life cycle
> of the object.
>
> Now deivce can be removed while filesystem is still mounted. This will
> cleanup all the virtqueues but virtio_fs object will still be around and
2019 Sep 06
0
[PATCH 15/18] virtiofs: Make virtio_fs object refcounted
...s *vfs = container_of(ref, struct virtio_fs, refcount);
+
+ kfree(vfs->vqs);
+ kfree(vfs);
+}
+
+static void virtio_fs_put(struct virtio_fs *fs)
+{
+ mutex_lock(&virtio_fs_mutex);
+ kref_put(&fs->refcount, release_virtio_fs_obj);
+ mutex_unlock(&virtio_fs_mutex);
+}
+
+static void virtio_fs_fiq_release(struct fuse_iqueue *fiq)
+{
+ struct virtio_fs *vfs = fiq->priv;
+ virtio_fs_put(vfs);
+}
+
static void virtio_fs_drain_queue(struct virtio_fs_vq *fsvq)
{
WARN_ON(fsvq->in_flight < 0);
@@ -156,8 +178,10 @@ static struct virtio_fs *virtio_fs_find_
mutex_lock(&virtio_fs_mutex);...
2019 Sep 06
2
[PATCH 16/18] virtiofs: Use virtio_fs_mutex for races w.r.t ->remove and mount path
On Thu, Sep 05, 2019 at 03:48:57PM -0400, Vivek Goyal wrote:
> It is possible that a mount is in progress and device is being removed at
> the same time. Use virtio_fs_mutex to avoid races.
>
> This also takes care of bunch of races and removes some TODO items.
>
> Signed-off-by: Vivek Goyal <vgoyal at redhat.com>
> ---
> fs/fuse/virtio_fs.c | 32
2019 Sep 06
2
[PATCH 16/18] virtiofs: Use virtio_fs_mutex for races w.r.t ->remove and mount path
On Thu, Sep 05, 2019 at 03:48:57PM -0400, Vivek Goyal wrote:
> It is possible that a mount is in progress and device is being removed at
> the same time. Use virtio_fs_mutex to avoid races.
>
> This also takes care of bunch of races and removes some TODO items.
>
> Signed-off-by: Vivek Goyal <vgoyal at redhat.com>
> ---
> fs/fuse/virtio_fs.c | 32
2019 Sep 06
0
[PATCH 16/18] virtiofs: Use virtio_fs_mutex for races w.r.t ->remove and mount path
...tatic void release_virtio_fs_obj(struct
kfree(vfs);
}
+/* Make sure virtiofs_mutex is held */
static void virtio_fs_put(struct virtio_fs *fs)
{
- mutex_lock(&virtio_fs_mutex);
kref_put(&fs->refcount, release_virtio_fs_obj);
- mutex_unlock(&virtio_fs_mutex);
}
static void virtio_fs_fiq_release(struct fuse_iqueue *fiq)
{
struct virtio_fs *vfs = fiq->priv;
+
+ mutex_lock(&virtio_fs_mutex);
virtio_fs_put(vfs);
+ mutex_unlock(&virtio_fs_mutex);
}
static void virtio_fs_drain_queue(struct virtio_fs_vq *fsvq)
@@ -596,9 +600,8 @@ static void virtio_fs_remove(struct virt
str...
2019 Sep 18
0
[PATCH v6] virtio-fs: add virtiofs filesystem
...struct virtio_fs, refcount);
> +
> + kfree(vfs->vqs);
> + kfree(vfs);
> +}
> +
> +/* Make sure virtiofs_mutex is held */
> +static void virtio_fs_put(struct virtio_fs *fs)
> +{
> + kref_put(&fs->refcount, release_virtio_fs_obj);
> +}
> +
> +static void virtio_fs_fiq_release(struct fuse_iqueue *fiq)
> +{
> + struct virtio_fs *vfs = fiq->priv;
> +
> + mutex_lock(&virtio_fs_mutex);
> + virtio_fs_put(vfs);
> + mutex_unlock(&virtio_fs_mutex);
> +}
> +
> +static void virtio_fs_drain_queue(struct virtio_fs_vq *fsvq)
> +{
> + WARN_O...