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Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h57
1 files changed, 46 insertions, 11 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 53f87f398d..93854609a4 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -6,13 +6,28 @@
#ifndef BTRFS_VOLUMES_H
#define BTRFS_VOLUMES_H
+#include <linux/blk_types.h>
+#include <linux/sizes.h>
+#include <linux/atomic.h>
#include <linux/sort.h>
-#include <linux/btrfs.h>
-#include "async-thread.h"
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/log2.h>
+#include <linux/kobject.h>
+#include <linux/refcount.h>
+#include <linux/completion.h>
+#include <linux/rbtree.h>
+#include <uapi/linux/btrfs.h>
#include "messages.h"
-#include "tree-checker.h"
#include "rcu-string.h"
+struct block_device;
+struct bdev_handle;
+struct btrfs_fs_info;
+struct btrfs_block_group;
+struct btrfs_trans_handle;
+struct btrfs_zoned_device_info;
+
#define BTRFS_MAX_DATA_CHUNK_SIZE (10ULL * SZ_1G)
extern struct mutex uuid_mutex;
@@ -77,7 +92,7 @@ enum btrfs_raid_types {
#define BTRFS_DEV_STATE_FLUSH_SENT (4)
#define BTRFS_DEV_STATE_NO_READA (5)
-struct btrfs_zoned_device_info;
+struct btrfs_fs_devices;
struct btrfs_device {
struct list_head dev_list; /* device_list_mutex */
@@ -90,7 +105,7 @@ struct btrfs_device {
u64 generation;
- struct bdev_handle *bdev_handle;
+ struct file *bdev_file;
struct block_device *bdev;
struct btrfs_zoned_device_info *zone_info;
@@ -276,6 +291,25 @@ enum btrfs_read_policy {
BTRFS_NR_READ_POLICY,
};
+#ifdef CONFIG_BTRFS_DEBUG
+/*
+ * Checksum mode - offload it to workqueues or do it synchronously in
+ * btrfs_submit_chunk().
+ */
+enum btrfs_offload_csum_mode {
+ /*
+ * Choose offloading checksum or do it synchronously automatically.
+ * Do it synchronously if the checksum is fast, or offload to workqueues
+ * otherwise.
+ */
+ BTRFS_OFFLOAD_CSUM_AUTO,
+ /* Always offload checksum to workqueues. */
+ BTRFS_OFFLOAD_CSUM_FORCE_ON,
+ /* Never offload checksum to workqueues. */
+ BTRFS_OFFLOAD_CSUM_FORCE_OFF,
+};
+#endif
+
struct btrfs_fs_devices {
u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
@@ -380,6 +414,11 @@ struct btrfs_fs_devices {
/* Policy used to read the mirrored stripes. */
enum btrfs_read_policy read_policy;
+
+#ifdef CONFIG_BTRFS_DEBUG
+ /* Checksum mode - offload it or do it synchronously. */
+ enum btrfs_offload_csum_mode offload_csum_mode;
+#endif
};
#define BTRFS_MAX_DEVS(info) ((BTRFS_MAX_ITEM_SIZE(info) \
@@ -557,8 +596,6 @@ static inline void btrfs_free_chunk_map(struct btrfs_chunk_map *map)
}
}
-struct btrfs_balance_args;
-struct btrfs_balance_progress;
struct btrfs_balance_control {
struct btrfs_balance_args data;
struct btrfs_balance_args meta;
@@ -661,7 +698,7 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
void btrfs_put_dev_args_from_path(struct btrfs_dev_lookup_args *args);
int btrfs_rm_device(struct btrfs_fs_info *fs_info,
struct btrfs_dev_lookup_args *args,
- struct bdev_handle **bdev_handle);
+ struct file **bdev_file);
void __exit btrfs_cleanup_fs_uuids(void);
int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
int btrfs_grow_device(struct btrfs_trans_handle *trans,
@@ -780,9 +817,7 @@ void btrfs_commit_device_sizes(struct btrfs_transaction *trans);
struct list_head * __attribute_const__ btrfs_get_fs_uuids(void);
bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info,
struct btrfs_device *failing_dev);
-void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info,
- struct block_device *bdev,
- const char *device_path);
+void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info, struct btrfs_device *device);
enum btrfs_raid_types __attribute_const__ btrfs_bg_flags_to_raid_index(u64 flags);
int btrfs_bg_type_to_factor(u64 flags);