diff options
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 116 |
1 files changed, 83 insertions, 33 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index e62fd50237e4..6c21bad26a27 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" @@ -676,9 +677,25 @@ 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; @@ -907,10 +924,6 @@ 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 +1000,6 @@ 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 +1063,6 @@ 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; @@ -1080,7 +1081,6 @@ 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; }; @@ -1435,13 +1435,13 @@ 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), \ @@ -2293,6 +2293,21 @@ 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_root *root, + struct extent_buffer *leaf) +{ + u32 nr = btrfs_header_nritems(leaf); + + if (nr == 0) + return BTRFS_LEAF_DATA_SIZE(root); + 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, @@ -2867,10 +2882,14 @@ 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; } /* @@ -3118,7 +3137,7 @@ 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, @@ -3236,14 +3255,17 @@ int btrfs_parse_options(struct btrfs_root *root, 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...) \ @@ -3314,7 +3336,35 @@ 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...) \ @@ -3325,13 +3375,13 @@ 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...) \ @@ -3362,7 +3412,7 @@ 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(); } |