Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

[karo-tx-linux.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 1f87a04f1441eb0191b7790120d07f21a3d9b332..2ecac8312359062268986adfe894f6320379bdd4 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -40,6 +40,7 @@
 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY        0x00000040
 #define F2FS_MOUNT_INLINE_XATTR                0x00000080
 #define F2FS_MOUNT_INLINE_DATA         0x00000100
+#define F2FS_MOUNT_FLUSH_MERGE         0x00000200
 
 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
 #define set_opt(sbi, option)   (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
@@ -210,6 +211,7 @@ struct f2fs_inode_info {
 
        /* Use below internally in f2fs*/
        unsigned long flags;            /* use to pass per-file flags */
+       struct rw_semaphore i_sem;      /* protect fi info */
        atomic_t dirty_dents;           /* # of dirty dentry pages */
        f2fs_hash_t chash;              /* hash value of given file name */
        unsigned int clevel;            /* maximum level of given file name */
@@ -242,6 +244,7 @@ struct f2fs_nm_info {
        block_t nat_blkaddr;            /* base disk address of NAT */
        nid_t max_nid;                  /* maximum possible node ids */
        nid_t next_scan_nid;            /* the next nid to be scanned */
+       unsigned int ram_thresh;        /* control the memory footprint */
 
        /* NAT cache management */
        struct radix_tree_root nat_root;/* root of the nat entry cache */
@@ -314,6 +317,12 @@ enum {
        NO_CHECK_TYPE
 };
 
+struct flush_cmd {
+       struct flush_cmd *next;
+       struct completion wait;
+       int ret;
+};
+
 struct f2fs_sm_info {
        struct sit_info *sit_info;              /* whole segment information */
        struct free_segmap_info *free_info;     /* free segment information */
@@ -342,6 +351,14 @@ struct f2fs_sm_info {
 
        unsigned int ipu_policy;        /* in-place-update policy */
        unsigned int min_ipu_util;      /* in-place-update threshold */
+
+       /* for flush command control */
+       struct task_struct *f2fs_issue_flush;   /* flush thread */
+       wait_queue_head_t flush_wait_queue;     /* waiting queue for wake-up */
+       struct flush_cmd *issue_list;           /* list for command issue */
+       struct flush_cmd *dispatch_list;        /* list for command dispatch */
+       spinlock_t issue_lock;                  /* for issue list lock */
+       struct flush_cmd *issue_tail;           /* list tail of issue list */
 };
 
 /*
@@ -392,7 +409,7 @@ struct f2fs_bio_info {
        struct bio *bio;                /* bios to merge */
        sector_t last_block_in_bio;     /* last block number */
        struct f2fs_io_info fio;        /* store buffered io info. */
-       struct mutex io_mutex;          /* mutex for bio */
+       struct rw_semaphore io_rwsem;   /* blocking op for bio */
 };
 
 struct f2fs_sb_info {
@@ -637,6 +654,11 @@ static inline int F2FS_HAS_BLOCKS(struct inode *inode)
                return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
 }
 
+static inline bool f2fs_has_xattr_block(unsigned int ofs)
+{
+       return ofs == XATTR_NODE_OFFSET;
+}
+
 static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
                                 struct inode *inode, blkcnt_t count)
 {
@@ -699,6 +721,11 @@ static inline int get_pages(struct f2fs_sb_info *sbi, int count_type)
        return atomic_read(&sbi->nr_pages[count_type]);
 }
 
+static inline int get_dirty_dents(struct inode *inode)
+{
+       return atomic_read(&F2FS_I(inode)->dirty_dents);
+}
+
 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
 {
        unsigned int pages_per_sec = sbi->segs_per_sec *
@@ -1114,6 +1141,7 @@ struct dnode_of_data;
 struct node_info;
 
 int is_checkpointed_node(struct f2fs_sb_info *, nid_t);
+bool fsync_mark_done(struct f2fs_sb_info *, nid_t);
 void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
 int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
 int truncate_inode_blocks(struct inode *, pgoff_t);
@@ -1147,6 +1175,7 @@ void destroy_node_manager_caches(void);
  */
 void f2fs_balance_fs(struct f2fs_sb_info *);
 void f2fs_balance_fs_bg(struct f2fs_sb_info *);
+int f2fs_issue_flush(struct f2fs_sb_info *);
 void invalidate_blocks(struct f2fs_sb_info *, block_t);
 void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
 void clear_prefree_segments(struct f2fs_sb_info *);