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Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h360
1 files changed, 206 insertions, 154 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 33fe03551105..6a823719b6c5 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -37,6 +37,7 @@
#include <linux/workqueue.h>
#include <linux/security.h>
#include <linux/sizes.h>
+#include <linux/dynamic_debug.h>
#include "extent_io.h"
#include "extent_map.h"
#include "async-thread.h"
@@ -89,9 +90,6 @@ static const int btrfs_csum_sizes[] = { 4 };
/* four bytes for CRC32 */
#define BTRFS_EMPTY_DIR_SIZE 0
-/* specific to btrfs_map_block(), therefore not in include/linux/blk_types.h */
-#define REQ_GET_READ_MIRRORS (1 << 30)
-
/* ioprio of readahead is set to idle */
#define BTRFS_IOPRIO_READA (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0))
@@ -251,7 +249,8 @@ struct btrfs_super_block {
#define BTRFS_FEATURE_COMPAT_SAFE_CLEAR 0ULL
#define BTRFS_FEATURE_COMPAT_RO_SUPP \
- (BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE)
+ (BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE | \
+ BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID)
#define BTRFS_FEATURE_COMPAT_RO_SAFE_SET 0ULL
#define BTRFS_FEATURE_COMPAT_RO_SAFE_CLEAR 0ULL
@@ -338,7 +337,7 @@ struct btrfs_path {
unsigned int need_commit_sem:1;
unsigned int skip_release_on_error:1;
};
-#define BTRFS_MAX_EXTENT_ITEM_SIZE(r) ((BTRFS_LEAF_DATA_SIZE(r) >> 4) - \
+#define BTRFS_MAX_EXTENT_ITEM_SIZE(r) ((BTRFS_LEAF_DATA_SIZE(r->fs_info) >> 4) - \
sizeof(struct btrfs_item))
struct btrfs_dev_replace {
u64 replace_state; /* see #define above */
@@ -427,6 +426,10 @@ struct btrfs_space_info {
struct list_head ro_bgs;
struct list_head priority_tickets;
struct list_head tickets;
+ /*
+ * tickets_id just indicates the next ticket will be handled, so note
+ * it's not stored per ticket.
+ */
u64 tickets_id;
struct rw_semaphore groups_sem;
@@ -516,7 +519,7 @@ struct btrfs_io_ctl {
void *cur, *orig;
struct page *page;
struct page **pages;
- struct btrfs_root *root;
+ struct btrfs_fs_info *fs_info;
struct inode *inode;
unsigned long size;
int index;
@@ -676,9 +679,25 @@ struct btrfs_device;
struct btrfs_fs_devices;
struct btrfs_balance_control;
struct btrfs_delayed_root;
+
+#define BTRFS_FS_BARRIER 1
+#define BTRFS_FS_CLOSING_START 2
+#define BTRFS_FS_CLOSING_DONE 3
+#define BTRFS_FS_LOG_RECOVERING 4
+#define BTRFS_FS_OPEN 5
+#define BTRFS_FS_QUOTA_ENABLED 6
+#define BTRFS_FS_QUOTA_ENABLING 7
+#define BTRFS_FS_QUOTA_DISABLING 8
+#define BTRFS_FS_UPDATE_UUID_TREE_GEN 9
+#define BTRFS_FS_CREATING_FREE_SPACE_TREE 10
+#define BTRFS_FS_BTREE_ERR 11
+#define BTRFS_FS_LOG1_ERR 12
+#define BTRFS_FS_LOG2_ERR 13
+
struct btrfs_fs_info {
u8 fsid[BTRFS_FSID_SIZE];
u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
+ unsigned long flags;
struct btrfs_root *extent_root;
struct btrfs_root *tree_root;
struct btrfs_root *chunk_root;
@@ -780,7 +799,6 @@ struct btrfs_fs_info {
spinlock_t super_lock;
struct btrfs_super_block *super_copy;
struct btrfs_super_block *super_for_commit;
- struct block_device *__bdev;
struct super_block *sb;
struct inode *btree_inode;
struct backing_dev_info bdi;
@@ -907,10 +925,6 @@ struct btrfs_fs_info {
int thread_pool_size;
struct kobject *space_info_kobj;
- int do_barriers;
- int closing;
- int log_root_recovering;
- int open;
u64 total_pinned;
@@ -987,17 +1001,6 @@ struct btrfs_fs_info {
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
u32 check_integrity_print_mask;
#endif
- /*
- * quota information
- */
- unsigned int quota_enabled:1;
-
- /*
- * quota_enabled only changes state after a commit. This holds the
- * next state.
- */
- unsigned int pending_quota_state:1;
-
/* is qgroup tracking in a consistent state? */
u64 qgroup_flags;
@@ -1061,7 +1064,6 @@ struct btrfs_fs_info {
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;
@@ -1080,11 +1082,20 @@ struct btrfs_fs_info {
*/
struct list_head pinned_chunks;
- int creating_free_space_tree;
/* Used to record internally whether fs has been frozen */
int fs_frozen;
+
+ /* Cached block sizes */
+ u32 nodesize;
+ u32 sectorsize;
+ u32 stripesize;
};
+static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
+{
+ return sb->s_fs_info;
+}
+
struct btrfs_subvolume_writers {
struct percpu_counter counter;
wait_queue_head_t wait;
@@ -1158,14 +1169,6 @@ struct btrfs_root {
u64 objectid;
u64 last_trans;
- /* data allocations are done in sectorsize units */
- u32 sectorsize;
-
- /* node allocations are done in nodesize units */
- u32 nodesize;
-
- u32 stripesize;
-
u32 type;
u64 highest_objectid;
@@ -1249,38 +1252,42 @@ struct btrfs_root {
/* For qgroup metadata space reserve */
atomic_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_root *root)
+static inline u32 BTRFS_LEAF_DATA_SIZE(const struct btrfs_fs_info *info)
{
- return __BTRFS_LEAF_DATA_SIZE(root->nodesize);
+ return __BTRFS_LEAF_DATA_SIZE(info->nodesize);
}
-static inline u32 BTRFS_MAX_ITEM_SIZE(const struct btrfs_root *root)
+static inline u32 BTRFS_MAX_ITEM_SIZE(const struct btrfs_fs_info *info)
{
- return BTRFS_LEAF_DATA_SIZE(root) - sizeof(struct btrfs_item);
+ return BTRFS_LEAF_DATA_SIZE(info) - sizeof(struct btrfs_item);
}
-static inline u32 BTRFS_NODEPTRS_PER_BLOCK(const struct btrfs_root *root)
+static inline u32 BTRFS_NODEPTRS_PER_BLOCK(const struct btrfs_fs_info *info)
{
- return BTRFS_LEAF_DATA_SIZE(root) / sizeof(struct btrfs_key_ptr);
+ return BTRFS_LEAF_DATA_SIZE(info) / sizeof(struct btrfs_key_ptr);
}
#define BTRFS_FILE_EXTENT_INLINE_DATA_START \
(offsetof(struct btrfs_file_extent_item, disk_bytenr))
-static inline u32 BTRFS_MAX_INLINE_DATA_SIZE(const struct btrfs_root *root)
+static inline u32 BTRFS_MAX_INLINE_DATA_SIZE(const struct btrfs_fs_info *info)
{
- return BTRFS_MAX_ITEM_SIZE(root) -
+ return BTRFS_MAX_ITEM_SIZE(info) -
BTRFS_FILE_EXTENT_INLINE_DATA_START;
}
-static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_root *root)
+static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_fs_info *info)
{
- return BTRFS_MAX_ITEM_SIZE(root) - sizeof(struct btrfs_dir_item);
+ return BTRFS_MAX_ITEM_SIZE(info) - sizeof(struct btrfs_dir_item);
}
/*
@@ -1342,12 +1349,13 @@ static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_root *root)
#ifdef CONFIG_BTRFS_DEBUG
static inline int
-btrfs_should_fragment_free_space(struct btrfs_root *root,
- struct btrfs_block_group_cache *block_group)
+btrfs_should_fragment_free_space(struct btrfs_block_group_cache *block_group)
{
- return (btrfs_test_opt(root->fs_info, FRAGMENT_METADATA) &&
+ struct btrfs_fs_info *fs_info = block_group->fs_info;
+
+ return (btrfs_test_opt(fs_info, FRAGMENT_METADATA) &&
block_group->flags & BTRFS_BLOCK_GROUP_METADATA) ||
- (btrfs_test_opt(root->fs_info, FRAGMENT_DATA) &&
+ (btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
block_group->flags & BTRFS_BLOCK_GROUP_DATA);
}
#endif
@@ -1435,13 +1443,13 @@ static inline void btrfs_init_map_token (struct btrfs_map_token *token)
#define cpu_to_le8(v) (v)
#define __le8 u8
-#define read_eb_member(eb, ptr, type, member, result) ( \
+#define read_eb_member(eb, ptr, type, member, result) (\
read_extent_buffer(eb, (char *)(result), \
((unsigned long)(ptr)) + \
offsetof(type, member), \
sizeof(((type *)0)->member)))
-#define write_eb_member(eb, ptr, type, member, result) ( \
+#define write_eb_member(eb, ptr, type, member, result) (\
write_extent_buffer(eb, (char *)(result), \
((unsigned long)(ptr)) + \
offsetof(type, member), \
@@ -2209,6 +2217,8 @@ btrfs_disk_balance_args_to_cpu(struct btrfs_balance_args *cpu,
cpu->target = le64_to_cpu(disk->target);
cpu->flags = le64_to_cpu(disk->flags);
cpu->limit = le64_to_cpu(disk->limit);
+ cpu->stripes_min = le32_to_cpu(disk->stripes_min);
+ cpu->stripes_max = le32_to_cpu(disk->stripes_max);
}
static inline void
@@ -2227,6 +2237,8 @@ btrfs_cpu_balance_args_to_disk(struct btrfs_disk_balance_args *disk,
disk->target = cpu_to_le64(cpu->target);
disk->flags = cpu_to_le64(cpu->flags);
disk->limit = cpu_to_le64(cpu->limit);
+ disk->stripes_min = cpu_to_le32(cpu->stripes_min);
+ disk->stripes_max = cpu_to_le32(cpu->stripes_max);
}
/* struct btrfs_super_block */
@@ -2293,6 +2305,21 @@ 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.
+ * this returns the address of the start of the last item,
+ * which is the stop of the leaf data stack
+ */
+static inline unsigned int leaf_data_end(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *leaf)
+{
+ u32 nr = btrfs_header_nritems(leaf);
+
+ if (nr == 0)
+ return BTRFS_LEAF_DATA_SIZE(fs_info);
+ return btrfs_item_offset_nr(leaf, nr - 1);
+}
+
/* struct btrfs_file_extent_item */
BTRFS_SETGET_FUNCS(file_extent_type, struct btrfs_file_extent_item, type, 8);
BTRFS_SETGET_STACK_FUNCS(stack_file_extent_disk_bytenr,
@@ -2485,11 +2512,6 @@ BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_left,
BTRFS_SETGET_STACK_FUNCS(stack_dev_replace_cursor_right,
struct btrfs_dev_replace_item, cursor_right, 64);
-static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
-{
- return sb->s_fs_info;
-}
-
/* helper function to cast into the data area of the leaf. */
#define btrfs_item_ptr(leaf, slot, type) \
((type *)(btrfs_leaf_data(leaf) + \
@@ -2512,28 +2534,28 @@ static inline gfp_t btrfs_alloc_write_mask(struct address_space *mapping)
/* extent-tree.c */
-u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes);
+u64 btrfs_csum_bytes_to_leaves(struct btrfs_fs_info *fs_info, u64 csum_bytes);
-static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_root *root,
+static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_fs_info *fs_info,
unsigned num_items)
{
- return root->nodesize * BTRFS_MAX_LEVEL * 2 * num_items;
+ return fs_info->nodesize * BTRFS_MAX_LEVEL * 2 * num_items;
}
/*
* Doing a truncate won't result in new nodes or leaves, just what we need for
* COW.
*/
-static inline u64 btrfs_calc_trunc_metadata_size(struct btrfs_root *root,
+static inline u64 btrfs_calc_trunc_metadata_size(struct btrfs_fs_info *fs_info,
unsigned num_items)
{
- return root->nodesize * BTRFS_MAX_LEVEL * num_items;
+ return fs_info->nodesize * BTRFS_MAX_LEVEL * num_items;
}
int btrfs_should_throttle_delayed_refs(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
void btrfs_dec_block_group_reservations(struct btrfs_fs_info *fs_info,
const u64 start);
void btrfs_wait_block_group_reservations(struct btrfs_block_group_cache *bg);
@@ -2542,18 +2564,18 @@ void btrfs_dec_nocow_writers(struct btrfs_fs_info *fs_info, u64 bytenr);
void btrfs_wait_nocow_writers(struct btrfs_block_group_cache *bg);
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,
+ struct btrfs_fs_info *fs_info, unsigned long count);
+int btrfs_async_run_delayed_refs(struct btrfs_fs_info *fs_info,
unsigned long count, u64 transid, int wait);
-int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len);
+int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len);
int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 bytenr,
+ struct btrfs_fs_info *fs_info, u64 bytenr,
u64 offset, int metadata, u64 *refs, u64 *flags);
-int btrfs_pin_extent(struct btrfs_root *root,
+int btrfs_pin_extent(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num, int reserved);
-int btrfs_pin_extent_for_log_replay(struct btrfs_root *root,
+int btrfs_pin_extent_for_log_replay(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes);
-int btrfs_exclude_logged_extents(struct btrfs_root *root,
+int btrfs_exclude_logged_extents(struct btrfs_fs_info *fs_info,
struct extent_buffer *eb);
int btrfs_cross_ref_exist(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
@@ -2574,12 +2596,11 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct extent_buffer *buf,
u64 parent, int last_ref);
int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
u64 root_objectid, u64 owner,
u64 offset, u64 ram_bytes,
struct btrfs_key *ins);
int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+ struct btrfs_fs_info *fs_info,
u64 root_objectid, u64 owner, u64 offset,
struct btrfs_key *ins);
int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes, u64 num_bytes,
@@ -2590,52 +2611,52 @@ int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
struct extent_buffer *buf, int full_backref);
int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+ struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes, u64 flags,
int level, int is_data);
int btrfs_free_extent(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+ struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
u64 owner, u64 offset);
-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,
+int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
+ u64 start, u64 len, int delalloc);
+int btrfs_free_and_pin_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len);
void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+ struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes, u64 parent,
u64 root_objectid, u64 owner, u64 offset);
int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
int btrfs_setup_space_cache(struct btrfs_trans_handle *trans,
- struct btrfs_root *root);
-int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr);
+ struct btrfs_fs_info *fs_info);
+int btrfs_extent_readonly(struct btrfs_fs_info *fs_info, u64 bytenr);
int btrfs_free_block_groups(struct btrfs_fs_info *info);
-int btrfs_read_block_groups(struct btrfs_root *root);
-int btrfs_can_relocate(struct btrfs_root *root, u64 bytenr);
+int btrfs_read_block_groups(struct btrfs_fs_info *info);
+int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr);
int btrfs_make_block_group(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 bytes_used,
+ struct btrfs_fs_info *fs_info, u64 bytes_used,
u64 type, u64 chunk_objectid, u64 chunk_offset,
u64 size);
struct btrfs_trans_handle *btrfs_start_trans_remove_block_group(
struct btrfs_fs_info *fs_info,
const u64 chunk_offset);
int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 group_start,
+ struct btrfs_fs_info *fs_info, u64 group_start,
struct extent_map *em);
void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info);
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_root *root);
+ struct btrfs_fs_info *fs_info);
u64 btrfs_get_alloc_profile(struct btrfs_root *root, int data);
void btrfs_clear_space_info_full(struct btrfs_fs_info *info);
@@ -2665,7 +2686,7 @@ void btrfs_free_reserved_data_space(struct inode *inode, 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,
- struct btrfs_root *root);
+ struct btrfs_fs_info *fs_info);
void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans);
int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans,
struct inode *inode);
@@ -2674,7 +2695,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
struct btrfs_block_rsv *rsv,
int nitems,
u64 *qgroup_reserved, bool use_global_rsv);
-void btrfs_subvolume_release_metadata(struct btrfs_root *root,
+void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *rsv,
u64 qgroup_reserved);
int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
@@ -2682,16 +2703,15 @@ void btrfs_delalloc_release_metadata(struct 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);
void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
-struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root,
+struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info,
unsigned short type);
-void btrfs_free_block_rsv(struct btrfs_root *root,
+void btrfs_free_block_rsv(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *rsv);
void __btrfs_free_block_rsv(struct btrfs_block_rsv *rsv);
int btrfs_block_rsv_add(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv, u64 num_bytes,
enum btrfs_reserve_flush_enum flush);
-int btrfs_block_rsv_check(struct btrfs_root *root,
- struct btrfs_block_rsv *block_rsv, int min_factor);
+int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_factor);
int btrfs_block_rsv_refill(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv, u64 min_reserved,
enum btrfs_reserve_flush_enum flush);
@@ -2701,22 +2721,21 @@ int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv,
int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *dest, u64 num_bytes,
int min_factor);
-void btrfs_block_rsv_release(struct btrfs_root *root,
+void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv,
u64 num_bytes);
int btrfs_inc_block_group_ro(struct btrfs_root *root,
struct btrfs_block_group_cache *cache);
-void btrfs_dec_block_group_ro(struct btrfs_root *root,
- struct btrfs_block_group_cache *cache);
+void btrfs_dec_block_group_ro(struct btrfs_block_group_cache *cache);
void btrfs_put_block_group_cache(struct btrfs_fs_info *info);
u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
-int btrfs_error_unpin_extent_range(struct btrfs_root *root,
+int btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info,
u64 start, u64 end);
-int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
+int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,
u64 num_bytes, u64 *actual_bytes);
int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 type);
-int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range);
+ struct btrfs_fs_info *fs_info, u64 type);
+int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range);
int btrfs_init_space_info(struct btrfs_fs_info *fs_info);
int btrfs_delayed_refs_qgroup_accounting(struct btrfs_trans_handle *trans,
@@ -2726,8 +2745,7 @@ int btrfs_start_write_no_snapshoting(struct btrfs_root *root);
void btrfs_end_write_no_snapshoting(struct btrfs_root *root);
void btrfs_wait_for_snapshot_creation(struct btrfs_root *root);
void check_system_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
- const u64 type);
+ struct btrfs_fs_info *fs_info, const u64 type);
u64 add_new_free_space(struct btrfs_block_group_cache *block_group,
struct btrfs_fs_info *info, u64 start, u64 end);
@@ -2777,10 +2795,10 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
struct extent_buffer **cow_ret, u64 new_root_objectid);
int btrfs_block_can_be_shared(struct btrfs_root *root,
struct extent_buffer *buf);
-void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
+void btrfs_extend_item(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
u32 data_size);
-void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
- u32 new_size, int from_end);
+void btrfs_truncate_item(struct btrfs_fs_info *fs_info,
+ struct btrfs_path *path, u32 new_size, int from_end);
int btrfs_split_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
@@ -2856,7 +2874,8 @@ static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p)
{
return btrfs_next_old_item(root, p, 0);
}
-int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf);
+int btrfs_leaf_free_space(struct btrfs_fs_info *fs_info,
+ struct extent_buffer *leaf);
int __must_check btrfs_drop_snapshot(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
int update_ref, int for_reloc);
@@ -2867,10 +2886,14 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
static inline int btrfs_fs_closing(struct btrfs_fs_info *fs_info)
{
/*
- * Get synced with close_ctree()
+ * Do it this way so we only ever do one test_bit in the normal case.
*/
- smp_mb();
- return fs_info->closing;
+ if (test_bit(BTRFS_FS_CLOSING_START, &fs_info->flags)) {
+ if (test_bit(BTRFS_FS_CLOSING_DONE, &fs_info->flags))
+ return 2;
+ return 1;
+ }
+ return 0;
}
/*
@@ -2878,10 +2901,9 @@ static inline int btrfs_fs_closing(struct btrfs_fs_info *fs_info)
* anything except sleeping. This function is used to check the status of
* the fs.
*/
-static inline int btrfs_need_cleaner_sleep(struct btrfs_root *root)
+static inline int btrfs_need_cleaner_sleep(struct btrfs_fs_info *fs_info)
{
- return (root->fs_info->sb->s_flags & MS_RDONLY ||
- btrfs_fs_closing(root->fs_info));
+ return fs_info->sb->s_flags & MS_RDONLY || btrfs_fs_closing(fs_info);
}
static inline void free_fs_info(struct btrfs_fs_info *fs_info)
@@ -2911,11 +2933,11 @@ int btrfs_old_root_level(struct btrfs_root *root, u64 time_seq);
/* root-item.c */
int btrfs_add_root_ref(struct btrfs_trans_handle *trans,
- struct btrfs_root *tree_root,
+ struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 sequence,
const char *name, int name_len);
int btrfs_del_root_ref(struct btrfs_trans_handle *trans,
- struct btrfs_root *tree_root,
+ struct btrfs_fs_info *fs_info,
u64 root_id, u64 ref_id, u64 dirid, u64 *sequence,
const char *name, int name_len);
int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
@@ -2930,7 +2952,7 @@ int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
int btrfs_find_root(struct btrfs_root *root, struct btrfs_key *search_key,
struct btrfs_path *path, struct btrfs_root_item *root_item,
struct btrfs_key *root_key);
-int btrfs_find_orphan_roots(struct btrfs_root *tree_root);
+int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
void btrfs_set_root_node(struct btrfs_root_item *item,
struct extent_buffer *node);
void btrfs_check_and_init_root_item(struct btrfs_root_item *item);
@@ -2939,10 +2961,10 @@ void btrfs_update_root_times(struct btrfs_trans_handle *trans,
/* uuid-tree.c */
int btrfs_uuid_tree_add(struct btrfs_trans_handle *trans,
- struct btrfs_root *uuid_root, u8 *uuid, u8 type,
+ struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid);
int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans,
- struct btrfs_root *uuid_root, u8 *uuid, u8 type,
+ struct btrfs_fs_info *fs_info, u8 *uuid, u8 type,
u64 subid);
int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
int (*check_func)(struct btrfs_fs_info *, u8 *, u8,
@@ -2984,10 +3006,10 @@ struct btrfs_dir_item *btrfs_lookup_xattr(struct btrfs_trans_handle *trans,
struct btrfs_path *path, u64 dir,
const char *name, u16 name_len,
int mod);
-int verify_dir_item(struct btrfs_root *root,
+int verify_dir_item(struct btrfs_fs_info *fs_info,
struct extent_buffer *leaf,
struct btrfs_dir_item *dir_item);
-struct btrfs_dir_item *btrfs_match_dir_item_name(struct btrfs_root *root,
+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);
@@ -3031,11 +3053,10 @@ int btrfs_find_name_in_ext_backref(struct btrfs_path *path,
/* file-item.c */
struct btrfs_dio_private;
int btrfs_del_csums(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 bytenr, u64 len);
-int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
- struct bio *bio, u32 *dst);
-int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode,
- struct bio *bio, u64 logical_offset);
+ struct btrfs_fs_info *fs_info, u64 bytenr, u64 len);
+int btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, u32 *dst);
+int btrfs_lookup_bio_sums_dio(struct inode *inode, struct bio *bio,
+ u64 logical_offset);
int btrfs_insert_file_extent(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
u64 objectid, u64 pos,
@@ -3049,8 +3070,8 @@ int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans,
int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_ordered_sum *sums);
-int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
- struct bio *bio, u64 file_start, int contig);
+int btrfs_csum_one_bio(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,
@@ -3118,7 +3139,7 @@ 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 nr);
int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end,
- struct extent_state **cached_state);
+ struct extent_state **cached_state, int dedupe);
int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
struct btrfs_root *new_root,
struct btrfs_root *parent_root,
@@ -3153,7 +3174,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans,
int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size);
void btrfs_invalidate_inodes(struct btrfs_root *root);
void btrfs_add_delayed_iput(struct inode *inode);
-void btrfs_run_delayed_iputs(struct btrfs_root *root);
+void btrfs_run_delayed_iputs(struct btrfs_fs_info *fs_info);
int btrfs_prealloc_file_range(struct inode *inode, int mode,
u64 start, u64 num_bytes, u64 min_size,
loff_t actual_len, u64 *alloc_hint);
@@ -3161,7 +3182,6 @@ int btrfs_prealloc_file_range_trans(struct inode *inode,
struct btrfs_trans_handle *trans, int mode,
u64 start, u64 num_bytes, u64 min_size,
loff_t actual_len, u64 *alloc_hint);
-int btrfs_inode_check_errors(struct inode *inode);
extern const struct dentry_operations btrfs_dentry_operations;
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
void btrfs_test_inode_set_ops(struct inode *inode);
@@ -3208,14 +3228,10 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans,
int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
struct inode *inode, u64 start, u64 end);
int btrfs_release_file(struct inode *inode, struct file *file);
-int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode,
- struct page **pages, size_t num_pages,
- loff_t pos, size_t write_bytes,
+int btrfs_dirty_pages(struct inode *inode, struct page **pages,
+ size_t num_pages, loff_t pos, size_t write_bytes,
struct extent_state **cached);
int btrfs_fdatawrite_range(struct inode *inode, loff_t start, loff_t end);
-ssize_t btrfs_copy_file_range(struct file *file_in, loff_t pos_in,
- struct file *file_out, loff_t pos_out,
- size_t len, unsigned int flags);
int btrfs_clone_file_range(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out, u64 len);
@@ -3233,18 +3249,21 @@ void btrfs_sysfs_remove_mounted(struct btrfs_fs_info *fs_info);
ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
/* super.c */
-int btrfs_parse_options(struct btrfs_root *root, char *options,
+int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
unsigned long new_flags);
int btrfs_sync_fs(struct super_block *sb, int wait);
+static inline __printf(2, 3)
+void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
+{
+}
+
#ifdef CONFIG_PRINTK
__printf(2, 3)
void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
#else
-static inline __printf(2, 3)
-void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
-{
-}
+#define btrfs_printk(fs_info, fmt, args...) \
+ btrfs_no_printk(fs_info, fmt, ##args)
#endif
#define btrfs_emerg(fs_info, fmt, args...) \
@@ -3315,7 +3334,35 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args)
#define btrfs_info_rl(fs_info, fmt, args...) \
btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args)
-#ifdef DEBUG
+
+#if defined(CONFIG_DYNAMIC_DEBUG)
+#define btrfs_debug(fs_info, fmt, args...) \
+do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
+ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
+ btrfs_printk(fs_info, KERN_DEBUG fmt, ##args); \
+} while (0)
+#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
+do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
+ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
+ btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args); \
+} while (0)
+#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
+do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
+ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
+ btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, \
+ ##args);\
+} while (0)
+#define btrfs_debug_rl(fs_info, fmt, args...) \
+do { \
+ DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
+ if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
+ btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, \
+ ##args); \
+} while (0)
+#elif defined(DEBUG)
#define btrfs_debug(fs_info, fmt, args...) \
btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
@@ -3326,13 +3373,13 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args)
#else
#define btrfs_debug(fs_info, fmt, args...) \
- no_printk(KERN_DEBUG fmt, ##args)
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
- no_printk(KERN_DEBUG fmt, ##args)
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
- no_printk(KERN_DEBUG fmt, ##args)
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
#define btrfs_debug_rl(fs_info, fmt, args...) \
- no_printk(KERN_DEBUG fmt, ##args)
+ btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
#endif
#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
@@ -3363,7 +3410,7 @@ do { \
__cold
static inline void assfail(char *expr, char *file, int line)
{
- pr_err("BTRFS: assertion failed: %s, file: %s, line: %d",
+ pr_err("assertion failed: %s, file: %s, line: %d\n",
expr, file, line);
BUG();
}
@@ -3395,9 +3442,14 @@ do { \
/* Report first abort since mount */ \
if (!test_and_set_bit(BTRFS_FS_STATE_TRANS_ABORTED, \
&((trans)->fs_info->fs_state))) { \
- WARN(1, KERN_DEBUG \
- "BTRFS: Transaction aborted (error %d)\n", \
- (errno)); \
+ if ((errno) != -EIO) { \
+ WARN(1, KERN_DEBUG \
+ "BTRFS: Transaction aborted (error %d)\n", \
+ (errno)); \
+ } else { \
+ pr_debug("BTRFS: Transaction aborted (error %d)\n", \
+ (errno)); \
+ } \
} \
__btrfs_abort_transaction((trans), __func__, \
__LINE__, (errno)); \
@@ -3559,7 +3611,7 @@ static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
#endif
/* relocation.c */
-int btrfs_relocate_block_group(struct btrfs_root *root, u64 group_start);
+int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start);
int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
@@ -3578,12 +3630,12 @@ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
u64 end, struct btrfs_scrub_progress *progress,
int readonly, int is_dev_replace);
-void btrfs_scrub_pause(struct btrfs_root *root);
-void btrfs_scrub_continue(struct btrfs_root *root);
+void btrfs_scrub_pause(struct btrfs_fs_info *fs_info);
+void btrfs_scrub_continue(struct btrfs_fs_info *fs_info);
int btrfs_scrub_cancel(struct btrfs_fs_info *info);
int btrfs_scrub_cancel_dev(struct btrfs_fs_info *info,
struct btrfs_device *dev);
-int btrfs_scrub_progress(struct btrfs_root *root, u64 devid,
+int btrfs_scrub_progress(struct btrfs_fs_info *fs_info, u64 devid,
struct btrfs_scrub_progress *progress);
/* dev-replace.c */
@@ -3598,7 +3650,7 @@ static inline void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info)
/* reada.c */
struct reada_control {
- struct btrfs_root *root; /* tree to prefetch */
+ struct btrfs_fs_info *fs_info; /* tree to prefetch */
struct btrfs_key key_start;
struct btrfs_key key_end; /* exclusive */
atomic_t elems;
@@ -3610,7 +3662,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
int btrfs_reada_wait(void *handle);
void btrfs_reada_detach(void *handle);
int btree_readahead_hook(struct btrfs_fs_info *fs_info,
- struct extent_buffer *eb, u64 start, int err);
+ struct extent_buffer *eb, int err);
static inline int is_fstree(u64 rootid)
{
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-08-13 04:01:30 +0000