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Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h84
1 files changed, 48 insertions, 36 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4f8f75d9e839..5bdd36664421 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -48,7 +48,6 @@ struct btrfs_trans_handle;
struct btrfs_transaction;
struct btrfs_pending_snapshot;
extern struct kmem_cache *btrfs_trans_handle_cachep;
-extern struct kmem_cache *btrfs_transaction_cachep;
extern struct kmem_cache *btrfs_bit_radix_cachep;
extern struct kmem_cache *btrfs_path_cachep;
extern struct kmem_cache *btrfs_free_space_cachep;
@@ -716,6 +715,10 @@ struct btrfs_delayed_root;
#define BTRFS_FS_BTREE_ERR 11
#define BTRFS_FS_LOG1_ERR 12
#define BTRFS_FS_LOG2_ERR 13
+#define BTRFS_FS_QUOTA_OVERRIDE 14
+/* Used to record internally whether fs has been frozen */
+#define BTRFS_FS_FROZEN 15
+
/*
* Indicate that a whole-filesystem exclusive operation is running
* (device replace, resize, device add/delete, balance)
@@ -748,8 +751,7 @@ struct btrfs_fs_info {
struct rb_root block_group_cache_tree;
/* keep track of unallocated space */
- spinlock_t free_chunk_lock;
- u64 free_chunk_space;
+ atomic64_t free_chunk_space;
struct extent_io_tree freed_extents[2];
struct extent_io_tree *pinned_extents;
@@ -797,17 +799,7 @@ struct btrfs_fs_info {
* so it is also safe.
*/
u64 max_inline;
- /*
- * Protected by ->chunk_mutex and sb->s_umount.
- *
- * The reason that we use two lock to protect it is because only
- * remount and mount operations can change it and these two operations
- * are under sb->s_umount, but the read side (chunk allocation) can not
- * acquire sb->s_umount or the deadlock would happen. So we use two
- * locks to protect it. On the write side, we must acquire two locks,
- * and on the read side, we just need acquire one of them.
- */
- u64 alloc_start;
+
struct btrfs_transaction *running_transaction;
wait_queue_head_t transaction_throttle;
wait_queue_head_t transaction_wait;
@@ -1107,9 +1099,6 @@ struct btrfs_fs_info {
*/
struct list_head pinned_chunks;
- /* Used to record internally whether fs has been frozen */
- int fs_frozen;
-
/* Cached block sizes */
u32 nodesize;
u32 sectorsize;
@@ -1277,21 +1266,20 @@ struct btrfs_root {
/* For qgroup metadata space reserve */
atomic64_t qgroup_meta_rsv;
};
+
static inline u32 btrfs_inode_sectorsize(const struct inode *inode)
{
return btrfs_sb(inode->i_sb)->sectorsize;
}
-static inline u32 __BTRFS_LEAF_DATA_SIZE(u32 blocksize)
-{
- return blocksize - sizeof(struct btrfs_header);
-}
-
static inline u32 BTRFS_LEAF_DATA_SIZE(const struct btrfs_fs_info *info)
{
- return __BTRFS_LEAF_DATA_SIZE(info->nodesize);
+
+ return info->nodesize - sizeof(struct btrfs_header);
}
+#define BTRFS_LEAF_DATA_OFFSET offsetof(struct btrfs_leaf, items)
+
static inline u32 BTRFS_MAX_ITEM_SIZE(const struct btrfs_fs_info *info)
{
return BTRFS_LEAF_DATA_SIZE(info) - sizeof(struct btrfs_item);
@@ -1553,8 +1541,27 @@ static inline void btrfs_set_##name(type *s, u##bits val) \
s->member = cpu_to_le##bits(val); \
}
+
+static inline u64 btrfs_device_total_bytes(struct extent_buffer *eb,
+ struct btrfs_dev_item *s)
+{
+ BUILD_BUG_ON(sizeof(u64) !=
+ sizeof(((struct btrfs_dev_item *)0))->total_bytes);
+ return btrfs_get_64(eb, s, offsetof(struct btrfs_dev_item,
+ total_bytes));
+}
+static inline void btrfs_set_device_total_bytes(struct extent_buffer *eb,
+ struct btrfs_dev_item *s,
+ u64 val)
+{
+ BUILD_BUG_ON(sizeof(u64) !=
+ sizeof(((struct btrfs_dev_item *)0))->total_bytes);
+ WARN_ON(!IS_ALIGNED(val, eb->fs_info->sectorsize));
+ btrfs_set_64(eb, s, offsetof(struct btrfs_dev_item, total_bytes), val);
+}
+
+
BTRFS_SETGET_FUNCS(device_type, struct btrfs_dev_item, type, 64);
-BTRFS_SETGET_FUNCS(device_total_bytes, struct btrfs_dev_item, total_bytes, 64);
BTRFS_SETGET_FUNCS(device_bytes_used, struct btrfs_dev_item, bytes_used, 64);
BTRFS_SETGET_FUNCS(device_io_align, struct btrfs_dev_item, io_align, 32);
BTRFS_SETGET_FUNCS(device_io_width, struct btrfs_dev_item, io_width, 32);
@@ -2324,10 +2331,6 @@ static inline int btrfs_super_csum_size(struct btrfs_super_block *s)
return btrfs_csum_sizes[t];
}
-static inline unsigned long btrfs_leaf_data(struct extent_buffer *l)
-{
- return offsetof(struct btrfs_leaf, items);
-}
/*
* The leaf data grows from end-to-front in the node.
@@ -2538,11 +2541,11 @@ BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
/* helper function to cast into the data area of the leaf. */
#define btrfs_item_ptr(leaf, slot, type) \
- ((type *)(btrfs_leaf_data(leaf) + \
+ ((type *)(BTRFS_LEAF_DATA_OFFSET + \
btrfs_item_offset_nr(leaf, slot)))
#define btrfs_item_ptr_offset(leaf, slot) \
- ((unsigned long)(btrfs_leaf_data(leaf) + \
+ ((unsigned long)(BTRFS_LEAF_DATA_OFFSET + \
btrfs_item_offset_nr(leaf, slot)))
static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
@@ -2680,7 +2683,9 @@ void btrfs_get_block_group_trimming(struct btrfs_block_group_cache *cache);
void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *cache);
void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
-u64 btrfs_get_alloc_profile(struct btrfs_root *root, int data);
+u64 btrfs_data_alloc_profile(struct btrfs_fs_info *fs_info);
+u64 btrfs_metadata_alloc_profile(struct btrfs_fs_info *fs_info);
+u64 btrfs_system_alloc_profile(struct btrfs_fs_info *fs_info);
void btrfs_clear_space_info_full(struct btrfs_fs_info *info);
enum btrfs_reserve_flush_enum {
@@ -2703,9 +2708,13 @@ enum btrfs_flush_state {
COMMIT_TRANS = 6,
};
-int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len);
int btrfs_alloc_data_chunk_ondemand(struct btrfs_inode *inode, u64 bytes);
-void btrfs_free_reserved_data_space(struct inode *inode, u64 start, u64 len);
+int btrfs_check_data_free_space(struct inode *inode,
+ struct extent_changeset **reserved, u64 start, u64 len);
+void btrfs_free_reserved_data_space(struct inode *inode,
+ struct extent_changeset *reserved, u64 start, u64 len);
+void btrfs_delalloc_release_space(struct inode *inode,
+ struct extent_changeset *reserved, u64 start, u64 len);
void btrfs_free_reserved_data_space_noquota(struct inode *inode, u64 start,
u64 len);
void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
@@ -2722,8 +2731,8 @@ void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *rsv);
int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes);
void btrfs_delalloc_release_metadata(struct btrfs_inode *inode, u64 num_bytes);
-int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
-void btrfs_delalloc_release_space(struct inode *inode, u64 start, u64 len);
+int btrfs_delalloc_reserve_space(struct inode *inode,
+ struct extent_changeset **reserved, u64 start, u64 len);
void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info,
unsigned short type);
@@ -3031,12 +3040,14 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
const char *name, u16 name_len,
int mod);
int verify_dir_item(struct btrfs_fs_info *fs_info,
- struct extent_buffer *leaf,
+ struct extent_buffer *leaf, int slot,
struct btrfs_dir_item *dir_item);
struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_fs_info *fs_info,
struct btrfs_path *path,
const char *name,
int name_len);
+bool btrfs_is_name_len_valid(struct extent_buffer *leaf, int slot,
+ unsigned long start, u16 name_len);
/* orphan.c */
int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
@@ -3171,6 +3182,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
size_t size, struct bio *bio,
unsigned long bio_flags);
+void btrfs_set_range_writeback(void *private_data, u64 start, u64 end);
int btrfs_page_mkwrite(struct vm_fault *vmf);
int btrfs_readpage(struct file *file, struct page *page);
void btrfs_evict_inode(struct inode *inode);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-28 18:13:52 +0000