btrfs: use the assigned fs_devices instead of the dereference
We have assigned the %fs_info->fs_devices in %fs_devices as its not modified just use it for the mutex_lock(). Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
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zatwierdzone przez
David Sterba

rodzic
62088ca742
commit
321a4bf72b
@@ -2211,7 +2211,7 @@ static int btrfs_prepare_sprout(struct btrfs_fs_info *fs_info)
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INIT_LIST_HEAD(&seed_devices->alloc_list);
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mutex_init(&seed_devices->device_list_mutex);
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mutex_lock(&fs_info->fs_devices->device_list_mutex);
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mutex_lock(&fs_devices->device_list_mutex);
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list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices,
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synchronize_rcu);
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list_for_each_entry(device, &seed_devices->devices, dev_list)
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@@ -2231,7 +2231,7 @@ static int btrfs_prepare_sprout(struct btrfs_fs_info *fs_info)
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generate_random_uuid(fs_devices->fsid);
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memcpy(fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
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memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
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mutex_unlock(&fs_info->fs_devices->device_list_mutex);
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mutex_unlock(&fs_devices->device_list_mutex);
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super_flags = btrfs_super_flags(disk_super) &
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~BTRFS_SUPER_FLAG_SEEDING;
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