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-rw-r--r--fs/btrfs/volumes.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index e15f2886d33e..b30d018fa359 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -87,6 +87,21 @@ struct btrfs_device {
/* physical drive uuid (or lvm uuid) */
u8 uuid[BTRFS_UUID_SIZE];
+ /*
+ * size of the device on the current transaction
+ *
+ * This variant is update when committing the transaction,
+ * and protected by device_list_mutex
+ */
+ u64 commit_total_bytes;
+
+ /*
+ * used to manage the device which is resized
+ *
+ * It is protected by chunk_lock.
+ */
+ struct list_head resized_list;
+
/* for sending down flush barriers */
int nobarriers;
struct bio *flush_bio;
@@ -136,6 +151,7 @@ struct btrfs_fs_devices {
struct mutex device_list_mutex;
struct list_head devices;
+ struct list_head resized_devices;
/* devices not currently being allocated */
struct list_head alloc_list;
struct list_head list;
@@ -402,4 +418,6 @@ static inline void btrfs_dev_stat_reset(struct btrfs_device *dev,
{
btrfs_dev_stat_set(dev, index, 0);
}
+
+void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info);
#endif