* The @ui_size is a "shadow" variable for @inode->i_size and UBIFS uses
* @ui_size instead of @inode->i_size. The reason for this is that UBIFS cannot
* make sure @inode->i_size is always changed under @ui_mutex, because it
- * cannot call 'truncate_setsize()' with @ui_mutex locked, because it would deadlock
- * with 'ubifs_writepage()' (see file.c). All the other inode fields are
- * changed under @ui_mutex, so they do not need "shadow" fields. Note, one
+ * cannot call 'truncate_setsize()' with @ui_mutex locked, because it would
+ * deadlock with 'ubifs_writepage()' (see file.c). All the other inode fields
+ * are changed under @ui_mutex, so they do not need "shadow" fields. Note, one
* could consider to rework locking and base it on "shadow" fields.
*/
struct ubifs_inode {
unsigned int compr_type:2;
};
+/**
+ * struct ubifs_budg_info - UBIFS budgeting information.
+ * @idx_growth: amount of bytes budgeted for index growth
+ * @data_growth: amount of bytes budgeted for cached data
+ * @dd_growth: amount of bytes budgeted for cached data that will make
+ * other data dirty
+ * @uncommitted_idx: amount of bytes were budgeted for growth of the index, but
+ * which still have to be taken into account because the index
+ * has not been committed so far
+ * @old_idx_sz: size of index on flash
+ * @min_idx_lebs: minimum number of LEBs required for the index
+ * @nospace: non-zero if the file-system does not have flash space (used as
+ * optimization)
+ * @nospace_rp: the same as @nospace, but additionally means that even reserved
+ * pool is full
+ * @page_budget: budget for a page (constant, nenver changed after mount)
+ * @inode_budget: budget for an inode (constant, nenver changed after mount)
+ * @dent_budget: budget for a directory entry (constant, nenver changed after
+ * mount)
+ */
+struct ubifs_budg_info {
+ long long idx_growth;
+ long long data_growth;
+ long long dd_growth;
+ long long uncommitted_idx;
+ unsigned long long old_idx_sz;
+ int min_idx_lebs;
+ unsigned int nospace:1;
+ unsigned int nospace_rp:1;
+ int page_budget;
+ int inode_budget;
+ int dent_budget;
+};
+
struct ubifs_debug_info;
/**
* @cmt_wq: wait queue to sleep on if the log is full and a commit is running
*
* @big_lpt: flag that LPT is too big to write whole during commit
+ * @space_fixup: flag indicating that free space in LEBs needs to be cleaned up
* @no_chk_data_crc: do not check CRCs when reading data nodes (except during
* recovery)
* @bulk_read: enable bulk-reads
* @dirty_zn_cnt: number of dirty znodes
* @clean_zn_cnt: number of clean znodes
*
- * @budg_idx_growth: amount of bytes budgeted for index growth
- * @budg_data_growth: amount of bytes budgeted for cached data
- * @budg_dd_growth: amount of bytes budgeted for cached data that will make
- * other data dirty
- * @budg_uncommitted_idx: amount of bytes were budgeted for growth of the index,
- * but which still have to be taken into account because
- * the index has not been committed so far
- * @space_lock: protects @budg_idx_growth, @budg_data_growth, @budg_dd_growth,
- * @budg_uncommited_idx, @min_idx_lebs, @old_idx_sz, @lst,
- * @nospace, and @nospace_rp;
- * @min_idx_lebs: minimum number of LEBs required for the index
- * @old_idx_sz: size of index on flash
+ * @space_lock: protects @bi and @lst
+ * @lst: lprops statistics
+ * @bi: budgeting information
* @calc_idx_sz: temporary variable which is used to calculate new index size
* (contains accurate new index size at end of TNC commit start)
- * @lst: lprops statistics
- * @nospace: non-zero if the file-system does not have flash space (used as
- * optimization)
- * @nospace_rp: the same as @nospace, but additionally means that even reserved
- * pool is full
- *
- * @page_budget: budget for a page
- * @inode_budget: budget for an inode
- * @dent_budget: budget for a directory entry
*
* @ref_node_alsz: size of the LEB reference node aligned to the min. flash
- * I/O unit
+ * I/O unit
* @mst_node_alsz: master node aligned size
* @min_idx_node_sz: minimum indexing node aligned on 8-bytes boundary
* @max_idx_node_sz: maximum indexing node aligned on 8-bytes boundary
* @replaying: %1 during journal replay
* @mounting: %1 while mounting
* @remounting_rw: %1 while re-mounting from R/O mode to R/W mode
- * @replay_tree: temporary tree used during journal replay
* @replay_list: temporary list used during journal replay
* @replay_buds: list of buds to replay
* @cs_sqnum: sequence number of first node in the log (commit start node)
wait_queue_head_t cmt_wq;
unsigned int big_lpt:1;
+ unsigned int space_fixup:1;
unsigned int no_chk_data_crc:1;
unsigned int bulk_read:1;
unsigned int default_compr:2;
atomic_long_t dirty_zn_cnt;
atomic_long_t clean_zn_cnt;
- long long budg_idx_growth;
- long long budg_data_growth;
- long long budg_dd_growth;
- long long budg_uncommitted_idx;
spinlock_t space_lock;
- int min_idx_lebs;
- unsigned long long old_idx_sz;
- unsigned long long calc_idx_sz;
struct ubifs_lp_stats lst;
- unsigned int nospace:1;
- unsigned int nospace_rp:1;
-
- int page_budget;
- int inode_budget;
- int dent_budget;
+ struct ubifs_budg_info bi;
+ unsigned long long calc_idx_sz;
int ref_node_alsz;
int mst_node_alsz;
unsigned int replaying:1;
unsigned int mounting:1;
unsigned int remounting_rw:1;
- struct rb_root replay_tree;
struct list_head replay_list;
struct list_head replay_buds;
unsigned long long cs_sqnum;
int ubifs_read_superblock(struct ubifs_info *c);
struct ubifs_sb_node *ubifs_read_sb_node(struct ubifs_info *c);
int ubifs_write_sb_node(struct ubifs_info *c, struct ubifs_sb_node *sup);
+int ubifs_fixup_free_space(struct ubifs_info *c);
/* replay.c */
int ubifs_validate_entry(struct ubifs_info *c,
git.openpandora.org / pandora-kernel.git / blobdiff