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Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h157
1 files changed, 87 insertions, 70 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4c48df572bd6..b7e2c1c1ef36 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"
@@ -756,6 +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;
@@ -840,7 +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__));
/*
@@ -1113,6 +1123,12 @@ 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 {
spinlock_t lock;
@@ -1163,7 +1179,7 @@ struct btrfs_space_info {
wait_queue_head_t wait;
struct kobject kobj;
- struct kobject block_group_kobjs[BTRFS_NR_RAID_TYPES];
+ struct kobject *block_group_kobjs[BTRFS_NR_RAID_TYPES];
};
#define BTRFS_BLOCK_RSV_GLOBAL 1
@@ -1313,6 +1329,8 @@ 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;
@@ -1534,6 +1552,9 @@ struct btrfs_fs_info {
*/
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;
@@ -1636,7 +1657,10 @@ 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()
@@ -1688,6 +1712,9 @@ struct btrfs_fs_info {
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 {
@@ -1696,6 +1723,26 @@ struct btrfs_subvolume_writers {
};
/*
+ * 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.
*/
@@ -1706,6 +1753,7 @@ 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;
@@ -1740,7 +1788,6 @@ struct btrfs_root {
/* 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;
@@ -1760,23 +1807,13 @@ 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 */
@@ -1790,7 +1827,6 @@ 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;
@@ -1808,8 +1844,6 @@ struct btrfs_root {
*/
dev_t anon_dev;
- int force_cow;
-
spinlock_t root_item_lock;
atomic_t refs;
@@ -2058,6 +2092,20 @@ 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
*/
@@ -2774,6 +2822,11 @@ 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);
@@ -2883,6 +2936,7 @@ 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
@@ -2900,6 +2954,7 @@ 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 */
@@ -3222,6 +3277,8 @@ int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
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,
@@ -3261,9 +3318,9 @@ 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);
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 no_quota);
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 no_quota);
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 bytenr, u64 num_bytes, u64 flags,
@@ -3271,7 +3328,7 @@ 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_and_pin_reserved_extent(struct btrfs_root *root,
@@ -3283,7 +3340,7 @@ 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);
@@ -3371,7 +3428,6 @@ 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 */
@@ -3547,7 +3603,6 @@ 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 */
@@ -3694,6 +3749,12 @@ 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;
@@ -4055,52 +4116,6 @@ 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 ||
@@ -4117,6 +4132,8 @@ 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 2.25.1) at 2024-07-24 16:20:57 +0300