btrfs: make close_fs_devices return void
The return value of this function conveys absolutely no information.
All callers already check the state of fs_devices->opened to decide how
to proceed. So convert the function to returning void. While at it make
btrfs_close_devices also return void.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 309b575..e94a0ee 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1156,12 +1156,12 @@ static void btrfs_close_one_device(struct btrfs_device *device)
ASSERT(atomic_read(&device->reada_in_flight) == 0);
}
-static int close_fs_devices(struct btrfs_fs_devices *fs_devices)
+static void close_fs_devices(struct btrfs_fs_devices *fs_devices)
{
struct btrfs_device *device, *tmp;
if (--fs_devices->opened > 0)
- return 0;
+ return;
mutex_lock(&fs_devices->device_list_mutex);
list_for_each_entry_safe(device, tmp, &fs_devices->devices, dev_list) {
@@ -1173,17 +1173,14 @@ static int close_fs_devices(struct btrfs_fs_devices *fs_devices)
WARN_ON(fs_devices->rw_devices);
fs_devices->opened = 0;
fs_devices->seeding = false;
-
- return 0;
}
-int btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
+void btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
{
struct btrfs_fs_devices *seed_devices = NULL;
- int ret;
mutex_lock(&uuid_mutex);
- ret = close_fs_devices(fs_devices);
+ close_fs_devices(fs_devices);
if (!fs_devices->opened) {
seed_devices = fs_devices->seed;
fs_devices->seed = NULL;
@@ -1196,7 +1193,6 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
close_fs_devices(fs_devices);
free_fs_devices(fs_devices);
}
- return ret;
}
static int open_fs_devices(struct btrfs_fs_devices *fs_devices,
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 302c9234..d0e93e0 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -435,7 +435,7 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
struct btrfs_device *btrfs_scan_one_device(const char *path,
fmode_t flags, void *holder);
int btrfs_forget_devices(const char *path);
-int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
+void btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_free_extra_devids(struct btrfs_fs_devices *fs_devices, int step);
void btrfs_assign_next_active_device(struct btrfs_device *device,
struct btrfs_device *this_dev);
