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-rw-r--r--ANDROID_3.4.5/fs/btrfs/volumes.h284
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diff --git a/ANDROID_3.4.5/fs/btrfs/volumes.h b/ANDROID_3.4.5/fs/btrfs/volumes.h
deleted file mode 100644
index bb6b03f9..00000000
--- a/ANDROID_3.4.5/fs/btrfs/volumes.h
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright (C) 2007 Oracle. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License v2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef __BTRFS_VOLUMES_
-#define __BTRFS_VOLUMES_
-
-#include <linux/bio.h>
-#include <linux/sort.h>
-#include "async-thread.h"
-
-#define BTRFS_STRIPE_LEN (64 * 1024)
-
-struct buffer_head;
-struct btrfs_pending_bios {
- struct bio *head;
- struct bio *tail;
-};
-
-struct btrfs_device {
- struct list_head dev_list;
- struct list_head dev_alloc_list;
- struct btrfs_fs_devices *fs_devices;
- struct btrfs_root *dev_root;
-
- /* regular prio bios */
- struct btrfs_pending_bios pending_bios;
- /* WRITE_SYNC bios */
- struct btrfs_pending_bios pending_sync_bios;
-
- int running_pending;
- u64 generation;
-
- int writeable;
- int in_fs_metadata;
- int missing;
- int can_discard;
-
- spinlock_t io_lock;
-
- struct block_device *bdev;
-
- /* the mode sent to blkdev_get */
- fmode_t mode;
-
- char *name;
-
- /* the internal btrfs device id */
- u64 devid;
-
- /* size of the device */
- u64 total_bytes;
-
- /* size of the disk */
- u64 disk_total_bytes;
-
- /* bytes used */
- u64 bytes_used;
-
- /* optimal io alignment for this device */
- u32 io_align;
-
- /* optimal io width for this device */
- u32 io_width;
-
- /* minimal io size for this device */
- u32 sector_size;
-
- /* type and info about this device */
- u64 type;
-
- /* physical drive uuid (or lvm uuid) */
- u8 uuid[BTRFS_UUID_SIZE];
-
- /* per-device scrub information */
- struct scrub_dev *scrub_device;
-
- struct btrfs_work work;
- struct rcu_head rcu;
- struct work_struct rcu_work;
-
- /* readahead state */
- spinlock_t reada_lock;
- atomic_t reada_in_flight;
- u64 reada_next;
- struct reada_zone *reada_curr_zone;
- struct radix_tree_root reada_zones;
- struct radix_tree_root reada_extents;
-
- /* for sending down flush barriers */
- struct bio *flush_bio;
- struct completion flush_wait;
- int nobarriers;
-
-};
-
-struct btrfs_fs_devices {
- u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
-
- /* the device with this id has the most recent copy of the super */
- u64 latest_devid;
- u64 latest_trans;
- u64 num_devices;
- u64 open_devices;
- u64 rw_devices;
- u64 missing_devices;
- u64 total_rw_bytes;
- u64 num_can_discard;
- struct block_device *latest_bdev;
-
- /* all of the devices in the FS, protected by a mutex
- * so we can safely walk it to write out the supers without
- * worrying about add/remove by the multi-device code
- */
- struct mutex device_list_mutex;
- struct list_head devices;
-
- /* devices not currently being allocated */
- struct list_head alloc_list;
- struct list_head list;
-
- struct btrfs_fs_devices *seed;
- int seeding;
-
- int opened;
-
- /* set when we find or add a device that doesn't have the
- * nonrot flag set
- */
- int rotating;
-};
-
-struct btrfs_bio_stripe {
- struct btrfs_device *dev;
- u64 physical;
- u64 length; /* only used for discard mappings */
-};
-
-struct btrfs_bio;
-typedef void (btrfs_bio_end_io_t) (struct btrfs_bio *bio, int err);
-
-struct btrfs_bio {
- atomic_t stripes_pending;
- bio_end_io_t *end_io;
- struct bio *orig_bio;
- void *private;
- atomic_t error;
- int max_errors;
- int num_stripes;
- int mirror_num;
- struct btrfs_bio_stripe stripes[];
-};
-
-struct btrfs_device_info {
- struct btrfs_device *dev;
- u64 dev_offset;
- u64 max_avail;
- u64 total_avail;
-};
-
-struct map_lookup {
- u64 type;
- int io_align;
- int io_width;
- int stripe_len;
- int sector_size;
- int num_stripes;
- int sub_stripes;
- struct btrfs_bio_stripe stripes[];
-};
-
-#define map_lookup_size(n) (sizeof(struct map_lookup) + \
- (sizeof(struct btrfs_bio_stripe) * (n)))
-
-/*
- * Restriper's general type filter
- */
-#define BTRFS_BALANCE_DATA (1ULL << 0)
-#define BTRFS_BALANCE_SYSTEM (1ULL << 1)
-#define BTRFS_BALANCE_METADATA (1ULL << 2)
-
-#define BTRFS_BALANCE_TYPE_MASK (BTRFS_BALANCE_DATA | \
- BTRFS_BALANCE_SYSTEM | \
- BTRFS_BALANCE_METADATA)
-
-#define BTRFS_BALANCE_FORCE (1ULL << 3)
-#define BTRFS_BALANCE_RESUME (1ULL << 4)
-
-/*
- * Balance filters
- */
-#define BTRFS_BALANCE_ARGS_PROFILES (1ULL << 0)
-#define BTRFS_BALANCE_ARGS_USAGE (1ULL << 1)
-#define BTRFS_BALANCE_ARGS_DEVID (1ULL << 2)
-#define BTRFS_BALANCE_ARGS_DRANGE (1ULL << 3)
-#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4)
-
-/*
- * Profile changing flags. When SOFT is set we won't relocate chunk if
- * it already has the target profile (even though it may be
- * half-filled).
- */
-#define BTRFS_BALANCE_ARGS_CONVERT (1ULL << 8)
-#define BTRFS_BALANCE_ARGS_SOFT (1ULL << 9)
-
-struct btrfs_balance_args;
-struct btrfs_balance_progress;
-struct btrfs_balance_control {
- struct btrfs_fs_info *fs_info;
-
- struct btrfs_balance_args data;
- struct btrfs_balance_args meta;
- struct btrfs_balance_args sys;
-
- u64 flags;
-
- struct btrfs_balance_progress stat;
-};
-
-int btrfs_account_dev_extents_size(struct btrfs_device *device, u64 start,
- u64 end, u64 *length);
-
-#define btrfs_bio_size(n) (sizeof(struct btrfs_bio) + \
- (sizeof(struct btrfs_bio_stripe) * (n)))
-
-int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans,
- struct btrfs_device *device,
- u64 chunk_tree, u64 chunk_objectid,
- u64 chunk_offset, u64 start, u64 num_bytes);
-int btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
- u64 logical, u64 *length,
- struct btrfs_bio **bbio_ret, int mirror_num);
-int btrfs_rmap_block(struct btrfs_mapping_tree *map_tree,
- u64 chunk_start, u64 physical, u64 devid,
- u64 **logical, int *naddrs, int *stripe_len);
-int btrfs_read_sys_array(struct btrfs_root *root);
-int btrfs_read_chunk_tree(struct btrfs_root *root);
-int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *extent_root, u64 type);
-void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
-void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree);
-int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
- int mirror_num, int async_submit);
-int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
- fmode_t flags, void *holder);
-int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder,
- struct btrfs_fs_devices **fs_devices_ret);
-int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
-void btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices);
-int btrfs_add_device(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_device *device);
-int btrfs_rm_device(struct btrfs_root *root, char *device_path);
-void btrfs_cleanup_fs_uuids(void);
-int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len);
-int btrfs_grow_device(struct btrfs_trans_handle *trans,
- struct btrfs_device *device, u64 new_size);
-struct btrfs_device *btrfs_find_device(struct btrfs_root *root, u64 devid,
- u8 *uuid, u8 *fsid);
-int btrfs_shrink_device(struct btrfs_device *device, u64 new_size);
-int btrfs_init_new_device(struct btrfs_root *root, char *path);
-int btrfs_balance(struct btrfs_balance_control *bctl,
- struct btrfs_ioctl_balance_args *bargs);
-int btrfs_recover_balance(struct btrfs_root *tree_root);
-int btrfs_pause_balance(struct btrfs_fs_info *fs_info);
-int btrfs_cancel_balance(struct btrfs_fs_info *fs_info);
-int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset);
-int find_free_dev_extent(struct btrfs_device *device, u64 num_bytes,
- u64 *start, u64 *max_avail);
-#endif