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btrfs: cleanup __btrfs_open_devices() drop head pointer 

__btrfs_open_devices() declares struct list_head *head, however head is
used only once, instead use btrfs_fs_devices::devices directly.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Anand Jain 2018-04-12 10:29:26 +08:00 committed by David Sterba
parent c4babc5e38
commit f117e290e8
1 changed files with 1 additions and 2 deletions
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3
fs/btrfs/volumes.c
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@ -1104,14 +1104,13 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
fmode_t flags, void *holder)
{
struct list_head *head = &fs_devices->devices;
struct btrfs_device *device;
struct btrfs_device *latest_dev = NULL;
int ret = 0;
flags |= FMODE_EXCL;
list_for_each_entry(device, head, dev_list) {
list_for_each_entry(device, &fs_devices->devices, dev_list) {
/* Just open everything we can; ignore failures here */
if (btrfs_open_one_device(fs_devices, device, flags, holder))
continue;