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-rw-r--r--fs/btrfs/ctree.h393
1 files changed, 257 insertions, 136 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 54ab86127f7a..8e29b614fe93 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -33,6 +33,7 @@
#include <asm/kmap_types.h>
#include <linux/pagemap.h>
#include <linux/btrfs.h>
+#include <linux/workqueue.h>
#include "extent_io.h"
#include "extent_map.h"
#include "async-thread.h"
@@ -351,6 +352,7 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes)
#define BTRFS_FS_STATE_ERROR 0
#define BTRFS_FS_STATE_REMOUNTING 1
#define BTRFS_FS_STATE_TRANS_ABORTED 2
+#define BTRFS_FS_STATE_DEV_REPLACING 3
/* Super block flags */
/* Errors detected */
@@ -521,9 +523,15 @@ struct btrfs_super_block {
#define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF (1ULL << 6)
#define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7)
#define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8)
+#define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9)
#define BTRFS_FEATURE_COMPAT_SUPP 0ULL
+#define BTRFS_FEATURE_COMPAT_SAFE_SET 0ULL
+#define BTRFS_FEATURE_COMPAT_SAFE_CLEAR 0ULL
#define BTRFS_FEATURE_COMPAT_RO_SUPP 0ULL
+#define BTRFS_FEATURE_COMPAT_RO_SAFE_SET 0ULL
+#define BTRFS_FEATURE_COMPAT_RO_SAFE_CLEAR 0ULL
+
#define BTRFS_FEATURE_INCOMPAT_SUPP \
(BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \
BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \
@@ -532,7 +540,12 @@ struct btrfs_super_block {
BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO | \
BTRFS_FEATURE_INCOMPAT_RAID56 | \
BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF | \
- BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
+ BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \
+ BTRFS_FEATURE_INCOMPAT_NO_HOLES)
+
+#define BTRFS_FEATURE_INCOMPAT_SAFE_SET \
+ (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF)
+#define BTRFS_FEATURE_INCOMPAT_SAFE_CLEAR 0ULL
/*
* A leaf is full of items. offset and size tell us where to find
@@ -597,6 +610,7 @@ struct btrfs_path {
unsigned int skip_locking:1;
unsigned int leave_spinning:1;
unsigned int search_commit_root:1;
+ unsigned int need_commit_sem:1;
};
/*
@@ -743,6 +757,12 @@ struct btrfs_dir_item {
#define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0)
+/*
+ * Internal in-memory flag that a subvolume has been marked for deletion but
+ * still visible as a directory
+ */
+#define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48)
+
struct btrfs_root_item {
struct btrfs_inode_item inode;
__le64 generation;
@@ -827,7 +847,10 @@ struct btrfs_disk_balance_args {
/* BTRFS_BALANCE_ARGS_* */
__le64 flags;
- __le64 unused[8];
+ /* BTRFS_BALANCE_ARGS_LIMIT value */
+ __le64 limit;
+
+ __le64 unused[7];
} __attribute__ ((__packed__));
/*
@@ -974,7 +997,8 @@ struct btrfs_dev_replace_item {
#define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6)
#define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7)
#define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8)
-#define BTRFS_BLOCK_GROUP_RESERVED BTRFS_AVAIL_ALLOC_BIT_SINGLE
+#define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | \
+ BTRFS_SPACE_INFO_GLOBAL_RSV)
enum btrfs_raid_types {
BTRFS_RAID_RAID10,
@@ -1006,6 +1030,12 @@ enum btrfs_raid_types {
*/
#define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48)
+/*
+ * A fake block group type that is used to communicate global block reserve
+ * size to userspace via the SPACE_INFO ioctl.
+ */
+#define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49)
+
#define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | \
BTRFS_AVAIL_ALLOC_BIT_SINGLE)
@@ -1093,8 +1123,14 @@ struct btrfs_qgroup_limit_item {
__le64 rsv_excl;
} __attribute__ ((__packed__));
+/* For raid type sysfs entries */
+struct raid_kobject {
+ int raid_type;
+ struct kobject kobj;
+};
+
struct btrfs_space_info {
- u64 flags;
+ spinlock_t lock;
u64 total_bytes; /* total bytes in the space,
this doesn't take mirrors into account */
@@ -1104,14 +1140,25 @@ struct btrfs_space_info {
transaction finishes */
u64 bytes_reserved; /* total bytes the allocator has reserved for
current allocations */
- u64 bytes_readonly; /* total bytes that are read only */
-
u64 bytes_may_use; /* number of bytes that may be used for
delalloc/allocations */
+ u64 bytes_readonly; /* total bytes that are read only */
+
+ unsigned int full:1; /* indicates that we cannot allocate any more
+ chunks for this space */
+ unsigned int chunk_alloc:1; /* set if we are allocating a chunk */
+
+ unsigned int flush:1; /* set if we are trying to make space */
+
+ unsigned int force_alloc; /* set if we need to force a chunk
+ alloc for this space */
+
u64 disk_used; /* total bytes used on disk */
u64 disk_total; /* total bytes on disk, takes mirrors into
account */
+ u64 flags;
+
/*
* bytes_pinned is kept in line with what is actually pinned, as in
* we've called update_block_group and dropped the bytes_used counter
@@ -1124,22 +1171,15 @@ struct btrfs_space_info {
*/
struct percpu_counter total_bytes_pinned;
- unsigned int full:1; /* indicates that we cannot allocate any more
- chunks for this space */
- unsigned int chunk_alloc:1; /* set if we are allocating a chunk */
-
- unsigned int flush:1; /* set if we are trying to make space */
-
- unsigned int force_alloc; /* set if we need to force a chunk
- alloc for this space */
-
struct list_head list;
+ struct rw_semaphore groups_sem;
/* for block groups in our same type */
struct list_head block_groups[BTRFS_NR_RAID_TYPES];
- spinlock_t lock;
- struct rw_semaphore groups_sem;
wait_queue_head_t wait;
+
+ struct kobject kobj;
+ struct kobject *block_group_kobjs[BTRFS_NR_RAID_TYPES];
};
#define BTRFS_BLOCK_RSV_GLOBAL 1
@@ -1219,11 +1259,19 @@ struct btrfs_block_group_cache {
spinlock_t lock;
u64 pinned;
u64 reserved;
+ u64 delalloc_bytes;
u64 bytes_super;
u64 flags;
u64 sectorsize;
u64 cache_generation;
+ /*
+ * It is just used for the delayed data space allocation because
+ * only the data space allocation and the relative metadata update
+ * can be done cross the transaction.
+ */
+ struct rw_semaphore data_rwsem;
+
/* for raid56, this is a full stripe, without parity */
unsigned long full_stripe_len;
@@ -1289,6 +1337,8 @@ struct btrfs_stripe_hash_table {
#define BTRFS_STRIPE_HASH_TABLE_BITS 11
+void btrfs_init_async_reclaim_work(struct work_struct *work);
+
/* fs_info */
struct reloc_control;
struct btrfs_device;
@@ -1346,6 +1396,7 @@ struct btrfs_fs_info {
u64 generation;
u64 last_trans_committed;
+ u64 avg_delayed_ref_runtime;
/*
* this is updated to the current trans every time a full commit
@@ -1423,7 +1474,7 @@ struct btrfs_fs_info {
*/
struct mutex ordered_extent_flush_mutex;
- struct rw_semaphore extent_commit_sem;
+ struct rw_semaphore commit_root_sem;
struct rw_semaphore cleanup_work_sem;
@@ -1448,7 +1499,6 @@ struct btrfs_fs_info {
spinlock_t tree_mod_seq_lock;
atomic64_t tree_mod_seq;
struct list_head tree_mod_seq_list;
- struct seq_list tree_mod_seq_elem;
/* this protects tree_mod_log */
rwlock_t tree_mod_log_lock;
@@ -1474,6 +1524,7 @@ struct btrfs_fs_info {
*/
struct list_head ordered_roots;
+ struct mutex delalloc_root_mutex;
spinlock_t delalloc_root_lock;
/* all fs/file tree roots that have delalloc inodes. */
struct list_head delalloc_roots;
@@ -1488,33 +1539,37 @@ struct btrfs_fs_info {
* A third pool does submit_bio to avoid deadlocking with the other
* two
*/
- struct btrfs_workers generic_worker;
- struct btrfs_workers workers;
- struct btrfs_workers delalloc_workers;
- struct btrfs_workers flush_workers;
- struct btrfs_workers endio_workers;
- struct btrfs_workers endio_meta_workers;
- struct btrfs_workers endio_raid56_workers;
- struct btrfs_workers rmw_workers;
- struct btrfs_workers endio_meta_write_workers;
- struct btrfs_workers endio_write_workers;
- struct btrfs_workers endio_freespace_worker;
- struct btrfs_workers submit_workers;
- struct btrfs_workers caching_workers;
- struct btrfs_workers readahead_workers;
+ struct btrfs_workqueue *workers;
+ struct btrfs_workqueue *delalloc_workers;
+ struct btrfs_workqueue *flush_workers;
+ struct btrfs_workqueue *endio_workers;
+ struct btrfs_workqueue *endio_meta_workers;
+ struct btrfs_workqueue *endio_raid56_workers;
+ struct btrfs_workqueue *rmw_workers;
+ struct btrfs_workqueue *endio_meta_write_workers;
+ struct btrfs_workqueue *endio_write_workers;
+ struct btrfs_workqueue *endio_freespace_worker;
+ struct btrfs_workqueue *submit_workers;
+ struct btrfs_workqueue *caching_workers;
+ struct btrfs_workqueue *readahead_workers;
/*
* fixup workers take dirty pages that didn't properly go through
* the cow mechanism and make them safe to write. It happens
* for the sys_munmap function call path
*/
- struct btrfs_workers fixup_workers;
- struct btrfs_workers delayed_workers;
+ struct btrfs_workqueue *fixup_workers;
+ struct btrfs_workqueue *delayed_workers;
+
+ /* the extent workers do delayed refs on the extent allocation tree */
+ struct btrfs_workqueue *extent_workers;
struct task_struct *transaction_kthread;
struct task_struct *cleaner_kthread;
int thread_pool_size;
struct kobject super_kobj;
+ struct kobject *space_info_kobj;
+ struct kobject *device_dir_kobj;
struct completion kobj_unregister;
int do_barriers;
int closing;
@@ -1587,9 +1642,9 @@ struct btrfs_fs_info {
atomic_t scrub_cancel_req;
wait_queue_head_t scrub_pause_wait;
int scrub_workers_refcnt;
- struct btrfs_workers scrub_workers;
- struct btrfs_workers scrub_wr_completion_workers;
- struct btrfs_workers scrub_nocow_workers;
+ struct btrfs_workqueue *scrub_workers;
+ struct btrfs_workqueue *scrub_wr_completion_workers;
+ struct btrfs_workqueue *scrub_nocow_workers;
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
u32 check_integrity_print_mask;
@@ -1610,7 +1665,10 @@ struct btrfs_fs_info {
/* holds configuration and tracking. Protected by qgroup_lock */
struct rb_root qgroup_tree;
+ struct rb_root qgroup_op_tree;
spinlock_t qgroup_lock;
+ spinlock_t qgroup_op_lock;
+ atomic_t qgroup_op_seq;
/*
* used to avoid frequently calling ulist_alloc()/ulist_free()
@@ -1630,7 +1688,7 @@ struct btrfs_fs_info {
/* qgroup rescan items */
struct mutex qgroup_rescan_lock; /* protects the progress item */
struct btrfs_key qgroup_rescan_progress;
- struct btrfs_workers qgroup_rescan_workers;
+ struct btrfs_workqueue *qgroup_rescan_workers;
struct completion qgroup_rescan_completion;
struct btrfs_work qgroup_rescan_work;
@@ -1643,6 +1701,10 @@ struct btrfs_fs_info {
spinlock_t reada_lock;
struct radix_tree_root reada_tree;
+ /* Extent buffer radix tree */
+ spinlock_t buffer_lock;
+ struct radix_tree_root buffer_radix;
+
/* next backup root to be overwritten */
int backup_root_index;
@@ -1653,11 +1715,42 @@ struct btrfs_fs_info {
atomic_t mutually_exclusive_operation_running;
+ struct percpu_counter bio_counter;
+ wait_queue_head_t replace_wait;
+
struct semaphore uuid_tree_rescan_sem;
unsigned int update_uuid_tree_gen:1;
+
+ /* Used to reclaim the metadata space in the background. */
+ struct work_struct async_reclaim_work;
+};
+
+struct btrfs_subvolume_writers {
+ struct percpu_counter counter;
+ wait_queue_head_t wait;
};
/*
+ * The state of btrfs root
+ */
+/*
+ * btrfs_record_root_in_trans is a multi-step process,
+ * and it can race with the balancing code. But the
+ * race is very small, and only the first time the root
+ * is added to each transaction. So IN_TRANS_SETUP
+ * is used to tell us when more checks are required
+ */
+#define BTRFS_ROOT_IN_TRANS_SETUP 0
+#define BTRFS_ROOT_REF_COWS 1
+#define BTRFS_ROOT_TRACK_DIRTY 2
+#define BTRFS_ROOT_IN_RADIX 3
+#define BTRFS_ROOT_DUMMY_ROOT 4
+#define BTRFS_ROOT_ORPHAN_ITEM_INSERTED 5
+#define BTRFS_ROOT_DEFRAG_RUNNING 6
+#define BTRFS_ROOT_FORCE_COW 7
+#define BTRFS_ROOT_MULTI_LOG_TASKS 8
+
+/*
* in ram representation of the tree. extent_root is used for all allocations
* and for the extent tree extent_root root.
*/
@@ -1668,6 +1761,7 @@ struct btrfs_root {
struct btrfs_root *log_root;
struct btrfs_root *reloc_root;
+ unsigned long state;
struct btrfs_root_item root_item;
struct btrfs_key root_key;
struct btrfs_fs_info *fs_info;
@@ -1681,7 +1775,6 @@ struct btrfs_root {
struct btrfs_block_rsv *block_rsv;
/* free ino cache stuff */
- struct mutex fs_commit_mutex;
struct btrfs_free_space_ctl *free_ino_ctl;
enum btrfs_caching_type cached;
spinlock_t cache_lock;
@@ -1693,13 +1786,16 @@ struct btrfs_root {
struct mutex log_mutex;
wait_queue_head_t log_writer_wait;
wait_queue_head_t log_commit_wait[2];
+ struct list_head log_ctxs[2];
atomic_t log_writers;
atomic_t log_commit[2];
atomic_t log_batch;
- unsigned long log_transid;
- unsigned long last_log_commit;
+ int log_transid;
+ /* No matter the commit succeeds or not*/
+ int log_transid_committed;
+ /* Just be updated when the commit succeeds. */
+ int last_log_commit;
pid_t log_start_pid;
- bool log_multiple_pids;
u64 objectid;
u64 last_trans;
@@ -1719,23 +1815,13 @@ struct btrfs_root {
u64 highest_objectid;
- /* btrfs_record_root_in_trans is a multi-step process,
- * and it can race with the balancing code. But the
- * race is very small, and only the first time the root
- * is added to each transaction. So in_trans_setup
- * is used to tell us when more checks are required
- */
- unsigned long in_trans_setup;
- int ref_cows;
- int track_dirty;
- int in_radix;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
- int dummy_root;
+ u64 alloc_bytenr;
#endif
+
u64 defrag_trans_start;
struct btrfs_key defrag_progress;
struct btrfs_key defrag_max;
- int defrag_running;
char *name;
/* the dirty list is only used by non-reference counted roots */
@@ -1749,7 +1835,6 @@ struct btrfs_root {
spinlock_t orphan_lock;
atomic_t orphan_inodes;
struct btrfs_block_rsv *orphan_block_rsv;
- int orphan_item_inserted;
int orphan_cleanup_state;
spinlock_t inode_lock;
@@ -1767,11 +1852,10 @@ struct btrfs_root {
*/
dev_t anon_dev;
- int force_cow;
-
spinlock_t root_item_lock;
atomic_t refs;
+ struct mutex delalloc_mutex;
spinlock_t delalloc_lock;
/*
* all of the inodes that have delalloc bytes. It is possible for
@@ -1781,6 +1865,8 @@ struct btrfs_root {
struct list_head delalloc_inodes;
struct list_head delalloc_root;
u64 nr_delalloc_inodes;
+
+ struct mutex ordered_extent_mutex;
/*
* this is used by the balancing code to wait for all the pending
* ordered extents
@@ -1795,6 +1881,14 @@ struct btrfs_root {
struct list_head ordered_extents;
struct list_head ordered_root;
u64 nr_ordered_extents;
+
+ /*
+ * Number of currently running SEND ioctls to prevent
+ * manipulation with the read-only status via SUBVOL_SETFLAGS
+ */
+ int send_in_progress;
+ struct btrfs_subvolume_writers *subv_writers;
+ atomic_t will_be_snapshoted;
};
struct btrfs_ioctl_defrag_range_args {
@@ -1997,6 +2091,7 @@ struct btrfs_ioctl_defrag_range_args {
#define BTRFS_MOUNT_CHECK_INTEGRITY_INCLUDING_EXTENT_DATA (1 << 21)
#define BTRFS_MOUNT_PANIC_ON_FATAL_ERROR (1 << 22)
#define BTRFS_MOUNT_RESCAN_UUID_TREE (1 << 23)
+#define BTRFS_MOUNT_CHANGE_INODE_CACHE (1 << 24)
#define BTRFS_DEFAULT_COMMIT_INTERVAL (30)
@@ -2005,6 +2100,20 @@ struct btrfs_ioctl_defrag_range_args {
#define btrfs_raw_test_opt(o, opt) ((o) & BTRFS_MOUNT_##opt)
#define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \
BTRFS_MOUNT_##opt)
+#define btrfs_set_and_info(root, opt, fmt, args...) \
+{ \
+ if (!btrfs_test_opt(root, opt)) \
+ btrfs_info(root->fs_info, fmt, ##args); \
+ btrfs_set_opt(root->fs_info->mount_opt, opt); \
+}
+
+#define btrfs_clear_and_info(root, opt, fmt, args...) \
+{ \
+ if (btrfs_test_opt(root, opt)) \
+ btrfs_info(root->fs_info, fmt, ##args); \
+ btrfs_clear_opt(root->fs_info->mount_opt, opt); \
+}
+
/*
* Inode flags
*/
@@ -2721,6 +2830,11 @@ static inline bool btrfs_root_readonly(struct btrfs_root *root)
return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0;
}
+static inline bool btrfs_root_dead(struct btrfs_root *root)
+{
+ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_DEAD)) != 0;
+}
+
/* struct btrfs_root_backup */
BTRFS_SETGET_STACK_FUNCS(backup_tree_root, struct btrfs_root_backup,
tree_root, 64);
@@ -2830,6 +2944,7 @@ btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
cpu->vend = le64_to_cpu(disk->vend);
cpu->target = le64_to_cpu(disk->target);
cpu->flags = le64_to_cpu(disk->flags);
+ cpu->limit = le64_to_cpu(disk->limit);
}
static inline void
@@ -2847,6 +2962,7 @@ btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
disk->vend = cpu_to_le64(cpu->vend);
disk->target = cpu_to_le64(cpu->target);
disk->flags = cpu_to_le64(cpu->flags);
+ disk->limit = cpu_to_le64(cpu->limit);
}
/* struct btrfs_super_block */
@@ -2925,6 +3041,10 @@ BTRFS_SETGET_STACK_FUNCS(stack_file_extent_generation,
struct btrfs_file_extent_item, generation, 64);
BTRFS_SETGET_STACK_FUNCS(stack_file_extent_num_bytes,
struct btrfs_file_extent_item, num_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_num_bytes,
+ struct btrfs_file_extent_item, disk_num_bytes, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_file_extent_compression,
+ struct btrfs_file_extent_item, compression, 8);
static inline unsigned long
btrfs_file_extent_inline_start(struct btrfs_file_extent_item *e)
@@ -2958,15 +3078,6 @@ BTRFS_SETGET_FUNCS(file_extent_encryption, struct btrfs_file_extent_item,
BTRFS_SETGET_FUNCS(file_extent_other_encoding, struct btrfs_file_extent_item,
other_encoding, 16);
-/* this returns the number of file bytes represented by the inline item.
- * If an item is compressed, this is the uncompressed size
- */
-static inline u32 btrfs_file_extent_inline_len(struct extent_buffer *eb,
- struct btrfs_file_extent_item *e)
-{
- return btrfs_file_extent_ram_bytes(eb, e);
-}
-
/*
* this returns the number of bytes used by the item on disk, minus the
* size of any extent headers. If a file is compressed on disk, this is
@@ -2980,6 +3091,32 @@ static inline u32 btrfs_file_extent_inline_item_len(struct extent_buffer *eb,
return btrfs_item_size(eb, e) - offset;
}
+/* this returns the number of file bytes represented by the inline item.
+ * If an item is compressed, this is the uncompressed size
+ */
+static inline u32 btrfs_file_extent_inline_len(struct extent_buffer *eb,
+ int slot,
+ struct btrfs_file_extent_item *fi)
+{
+ struct btrfs_map_token token;
+
+ btrfs_init_map_token(&token);
+ /*
+ * return the space used on disk if this item isn't
+ * compressed or encoded
+ */
+ if (btrfs_token_file_extent_compression(eb, fi, &token) == 0 &&
+ btrfs_token_file_extent_encryption(eb, fi, &token) == 0 &&
+ btrfs_token_file_extent_other_encoding(eb, fi, &token) == 0) {
+ return btrfs_file_extent_inline_item_len(eb,
+ btrfs_item_nr(slot));
+ }
+
+ /* otherwise use the ram bytes field */
+ return btrfs_token_file_extent_ram_bytes(eb, fi, &token);
+}
+
+
/* btrfs_dev_stats_item */
static inline u64 btrfs_dev_stats_value(struct extent_buffer *eb,
struct btrfs_dev_stats_item *ptr,
@@ -3143,9 +3280,13 @@ static inline u64 btrfs_calc_trunc_metadata_size(struct btrfs_root *root,
int btrfs_should_throttle_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
+int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
+ struct btrfs_root *root);
void btrfs_put_block_group(struct btrfs_block_group_cache *cache);
int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
struct btrfs_root *root, unsigned long count);
+int btrfs_async_run_delayed_refs(struct btrfs_root *root,
+ unsigned long count, int wait);
int btrfs_lookup_extent(struct btrfs_root *root, u64 start, u64 len);
int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 bytenr,
@@ -3163,6 +3304,7 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(
struct btrfs_fs_info *info,
u64 bytenr);
void btrfs_put_block_group(struct btrfs_block_group_cache *cache);
+int get_block_group_index(struct btrfs_block_group_cache *cache);
struct extent_buffer *btrfs_alloc_free_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u32 blocksize,
u64 parent, u64 root_objectid,
@@ -3182,11 +3324,11 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
struct btrfs_key *ins);
int btrfs_reserve_extent(struct btrfs_root *root, u64 num_bytes,
u64 min_alloc_size, u64 empty_size, u64 hint_byte,
- struct btrfs_key *ins, int is_data);
+ struct btrfs_key *ins, int is_data, int delalloc);
int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int for_cow);
+ struct extent_buffer *buf, int full_backref);
int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct extent_buffer *buf, int full_backref, int for_cow);
+ struct extent_buffer *buf, int full_backref);
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
@@ -3194,9 +3336,10 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
int btrfs_free_extent(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
- u64 owner, u64 offset, int for_cow);
+ u64 owner, u64 offset, int no_quota);
-int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len);
+int btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len,
+ int delalloc);
int btrfs_free_and_pin_reserved_extent(struct btrfs_root *root,
u64 start, u64 len);
void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
@@ -3206,7 +3349,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 parent,
- u64 root_objectid, u64 owner, u64 offset, int for_cow);
+ u64 root_objectid, u64 owner, u64 offset, int no_quota);
int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
@@ -3294,6 +3437,8 @@ int btrfs_init_space_info(struct btrfs_fs_info *fs_info);
int btrfs_delayed_refs_qgroup_accounting(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
int __get_raid_index(u64 flags);
+int btrfs_start_nocow_write(struct btrfs_root *root);
+void btrfs_end_nocow_write(struct btrfs_root *root);
/* ctree.c */
int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
int level, int *slot);
@@ -3301,6 +3446,8 @@ int btrfs_comp_cpu_keys(struct btrfs_key *k1, struct btrfs_key *k2);
int btrfs_previous_item(struct btrfs_root *root,
struct btrfs_path *path, u64 min_objectid,
int type);
+int btrfs_previous_extent_item(struct btrfs_root *root,
+ struct btrfs_path *path, u64 min_objectid);
void btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path,
struct btrfs_key *new_key);
struct extent_buffer *btrfs_root_node(struct btrfs_root *root);
@@ -3350,6 +3497,8 @@ int btrfs_duplicate_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
struct btrfs_key *new_key);
+int btrfs_find_item(struct btrfs_root *fs_root, struct btrfs_path *path,
+ u64 inum, u64 ioff, u8 key_type, struct btrfs_key *found_key);
int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
*root, struct btrfs_key *key, struct btrfs_path *p, int
ins_len, int cow);
@@ -3399,6 +3548,7 @@ static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans,
}
int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path);
+int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path);
int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path,
u64 time_seq);
static inline int btrfs_next_old_item(struct btrfs_root *root,
@@ -3462,7 +3612,6 @@ u64 btrfs_get_tree_mod_seq(struct btrfs_fs_info *fs_info,
struct seq_list *elem);
void btrfs_put_tree_mod_seq(struct btrfs_fs_info *fs_info,
struct seq_list *elem);
-u64 btrfs_tree_mod_seq_prev(u64 seq);
int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq);
/* root-item.c */
@@ -3563,12 +3712,6 @@ int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const char *name, int name_len,
u64 inode_objectid, u64 ref_objectid, u64 *index);
-int btrfs_get_inode_ref_index(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- struct btrfs_path *path,
- const char *name, int name_len,
- u64 inode_objectid, u64 ref_objectid, int mod,
- u64 *ret_index);
int btrfs_insert_empty_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 objectid);
@@ -3615,6 +3758,12 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
struct bio *bio, u64 file_start, int contig);
int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct list_head *list, int search_commit);
+void btrfs_extent_item_to_extent_map(struct inode *inode,
+ const struct btrfs_path *path,
+ struct btrfs_file_extent_item *fi,
+ const bool new_inline,
+ struct extent_map *em);
+
/* inode.c */
struct btrfs_delalloc_work {
struct inode *inode;
@@ -3672,11 +3821,14 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
u32 min_type);
int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput);
-int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput);
+int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput,
+ int nr);
int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end,
struct extent_state **cached_state);
int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
- struct btrfs_root *new_root, u64 new_dirid);
+ struct btrfs_root *new_root,
+ struct btrfs_root *parent_root,
+ u64 new_dirid);
int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
@@ -3745,7 +3897,10 @@ extern const struct file_operations btrfs_file_operations;
int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode,
struct btrfs_path *path, u64 start, u64 end,
- u64 *drop_end, int drop_cache);
+ u64 *drop_end, int drop_cache,
+ int replace_extent,
+ u32 extent_item_size,
+ int *key_inserted);
int btrfs_drop_extents(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct inode *inode, u64 start,
u64 end, int drop_cache);
@@ -3764,6 +3919,8 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
/* sysfs.c */
int btrfs_init_sysfs(void);
void btrfs_exit_sysfs(void);
+int btrfs_sysfs_add_one(struct btrfs_fs_info *fs_info);
+void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info);
/* xattr.c */
ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
@@ -3796,14 +3953,20 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
#define btrfs_info(fs_info, fmt, args...) \
btrfs_printk(fs_info, KERN_INFO fmt, ##args)
+
+#ifdef DEBUG
#define btrfs_debug(fs_info, fmt, args...) \
btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
+#else
+#define btrfs_debug(fs_info, fmt, args...) \
+ no_printk(KERN_DEBUG fmt, ##args)
+#endif
#ifdef CONFIG_BTRFS_ASSERT
static inline void assfail(char *expr, char *file, int line)
{
- printk(KERN_ERR "BTRFS assertion failed: %s, file: %s, line: %d",
+ pr_err("BTRFS: assertion failed: %s, file: %s, line: %d",
expr, file, line);
BUG();
}
@@ -3841,7 +4004,7 @@ static inline void __btrfs_set_fs_incompat(struct btrfs_fs_info *fs_info,
if (!(features & flag)) {
features |= flag;
btrfs_set_super_incompat_flags(disk_super, features);
- printk(KERN_INFO "btrfs: setting %llu feature flag\n",
+ btrfs_info(fs_info, "setting %llu feature flag",
flag);
}
spin_unlock(&fs_info->super_lock);
@@ -3899,20 +4062,17 @@ do { \
/* acl.c */
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
struct posix_acl *btrfs_get_acl(struct inode *inode, int type);
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir);
-int btrfs_acl_chmod(struct inode *inode);
#else
#define btrfs_get_acl NULL
+#define btrfs_set_acl NULL
static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
return 0;
}
-static inline int btrfs_acl_chmod(struct inode *inode)
-{
- return 0;
-}
#endif
/* relocation.c */
@@ -3944,6 +4104,11 @@ int btrfs_scrub_cancel_dev(struct btrfs_fs_info *info,
int btrfs_scrub_progress(struct btrfs_root *root, u64 devid,
struct btrfs_scrub_progress *progress);
+/* dev-replace.c */
+void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info);
+void btrfs_bio_counter_inc_noblocked(struct btrfs_fs_info *fs_info);
+void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info);
+
/* reada.c */
struct reada_control {
struct btrfs_root *root; /* tree to prefetch */
@@ -3960,52 +4125,6 @@ void btrfs_reada_detach(void *handle);
int btree_readahead_hook(struct btrfs_root *root, struct extent_buffer *eb,
u64 start, int err);
-/* qgroup.c */
-struct qgroup_update {
- struct list_head list;
- struct btrfs_delayed_ref_node *node;
- struct btrfs_delayed_extent_op *extent_op;
-};
-
-int btrfs_quota_enable(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info);
-int btrfs_quota_disable(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info);
-int btrfs_qgroup_rescan(struct btrfs_fs_info *fs_info);
-void btrfs_qgroup_rescan_resume(struct btrfs_fs_info *fs_info);
-int btrfs_qgroup_wait_for_completion(struct btrfs_fs_info *fs_info);
-int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 src, u64 dst);
-int btrfs_del_qgroup_relation(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 src, u64 dst);
-int btrfs_create_qgroup(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 qgroupid,
- char *name);
-int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 qgroupid);
-int btrfs_limit_qgroup(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 qgroupid,
- struct btrfs_qgroup_limit *limit);
-int btrfs_read_qgroup_config(struct btrfs_fs_info *fs_info);
-void btrfs_free_qgroup_config(struct btrfs_fs_info *fs_info);
-struct btrfs_delayed_extent_op;
-int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans,
- struct btrfs_delayed_ref_node *node,
- struct btrfs_delayed_extent_op *extent_op);
-int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info,
- struct btrfs_delayed_ref_node *node,
- struct btrfs_delayed_extent_op *extent_op);
-int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info);
-int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info, u64 srcid, u64 objectid,
- struct btrfs_qgroup_inherit *inherit);
-int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes);
-void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes);
-
-void assert_qgroups_uptodate(struct btrfs_trans_handle *trans);
-
static inline int is_fstree(u64 rootid)
{
if (rootid == BTRFS_FS_TREE_OBJECTID ||
@@ -4022,6 +4141,8 @@ static inline int btrfs_defrag_cancelled(struct btrfs_fs_info *fs_info)
/* Sanity test specific functions */
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
void btrfs_test_destroy_inode(struct inode *inode);
+int btrfs_verify_qgroup_counts(struct btrfs_fs_info *fs_info, u64 qgroupid,
+ u64 rfer, u64 excl);
#endif
#endif
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-19 05:11:52 +0000