Merge tag 'for_linux-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwess...

[firefly-linux-kernel-4.4.55.git] / fs / f2fs / f2fs.h

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 1795ce23111837171c953270bd23fd8574a6d193..7fa3313ab0e27381b95d48b22da8315e605ef567 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -28,7 +28,7 @@
        do {                                                            \
                if (unlikely(condition)) {                              \
                        WARN_ON(1);                                     \
-                       sbi->need_fsck = true;                          \
+                       set_sbi_flag(sbi, SBI_NEED_FSCK);               \
                }                                                       \
        } while (0)
 #define f2fs_down_write(x, y)  down_write(x)
@@ -100,10 +100,15 @@ enum {
 
 enum {
        CP_UMOUNT,
+       CP_FASTBOOT,
        CP_SYNC,
        CP_DISCARD,
 };
 
+#define DEF_BATCHED_TRIM_SECTIONS      32
+#define BATCHED_TRIM_SEGMENTS(sbi)     \
+               (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
+
 struct cp_control {
        int reason;
        __u64 trim_start;
@@ -202,6 +207,7 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size,
  */
 #define F2FS_IOC_GETFLAGS              FS_IOC_GETFLAGS
 #define F2FS_IOC_SETFLAGS              FS_IOC_SETFLAGS
+#define F2FS_IOC_GETVERSION            FS_IOC_GETVERSION
 
 #define F2FS_IOCTL_MAGIC               0xf5
 #define F2FS_IOC_START_ATOMIC_WRITE    _IO(F2FS_IOCTL_MAGIC, 1)
@@ -446,6 +452,9 @@ struct f2fs_sm_info {
        int nr_discards;                        /* # of discards in the list */
        int max_discards;                       /* max. discards to be issued */
 
+       /* for batched trimming */
+       unsigned int trim_sections;             /* # of sections to trim */
+
        struct list_head sit_entry_set; /* sit entry set list */
 
        unsigned int ipu_policy;        /* in-place-update policy */
@@ -518,14 +527,20 @@ struct inode_management {
        unsigned long ino_num;                  /* number of entries */
 };
 
+/* For s_flag in struct f2fs_sb_info */
+enum {
+       SBI_IS_DIRTY,                           /* dirty flag for checkpoint */
+       SBI_IS_CLOSE,                           /* specify unmounting */
+       SBI_NEED_FSCK,                          /* need fsck.f2fs to fix */
+       SBI_POR_DOING,                          /* recovery is doing or not */
+};
+
 struct f2fs_sb_info {
        struct super_block *sb;                 /* pointer to VFS super block */
        struct proc_dir_entry *s_proc;          /* proc entry */
        struct buffer_head *raw_super_buf;      /* buffer head of raw sb */
        struct f2fs_super_block *raw_super;     /* raw super block pointer */
-       int s_dirty;                            /* dirty flag for checkpoint */
-       bool need_fsck;                         /* need fsck.f2fs to fix */
-       bool s_closing;                         /* specify unmounting */
+       int s_flag;                             /* flags for sbi */
 
        /* for node-related operations */
        struct f2fs_nm_info *nm_info;           /* node manager */
@@ -545,7 +560,6 @@ struct f2fs_sb_info {
        struct rw_semaphore cp_rwsem;           /* blocking FS operations */
        struct rw_semaphore node_write;         /* locking node writes */
        struct mutex writepages;                /* mutex for writepages() */
-       bool por_doing;                         /* recovery is doing or not */
        wait_queue_head_t cp_wait;
 
        struct inode_management im[MAX_INO_ENTRY];      /* manage inode cache */
@@ -698,14 +712,19 @@ static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
        return sbi->node_inode->i_mapping;
 }
 
-static inline void F2FS_SET_SB_DIRT(struct f2fs_sb_info *sbi)
+static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
 {
-       sbi->s_dirty = 1;
+       return sbi->s_flag & (0x01 << type);
 }
 
-static inline void F2FS_RESET_SB_DIRT(struct f2fs_sb_info *sbi)
+static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
 {
-       sbi->s_dirty = 0;
+       sbi->s_flag |= (0x01 << type);
+}
+
+static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
+{
+       sbi->s_flag &= ~(0x01 << type);
 }
 
 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
@@ -753,6 +772,28 @@ static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
        up_write(&sbi->cp_rwsem);
 }
 
+static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
+{
+       int reason = CP_SYNC;
+
+       if (test_opt(sbi, FASTBOOT))
+               reason = CP_FASTBOOT;
+       if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
+               reason = CP_UMOUNT;
+       return reason;
+}
+
+static inline bool __remain_node_summaries(int reason)
+{
+       return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
+}
+
+static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
+{
+       return (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) ||
+                       is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FASTBOOT_FLAG));
+}
+
 /*
  * Check whether the given nid is within node id range.
  */
@@ -817,7 +858,7 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
 {
        atomic_inc(&sbi->nr_pages[count_type]);
-       F2FS_SET_SB_DIRT(sbi);
+       set_sbi_flag(sbi, SBI_IS_DIRTY);
 }
 
 static inline void inode_inc_dirty_pages(struct inode *inode)
@@ -1486,6 +1527,8 @@ struct page *get_lock_data_page(struct inode *, pgoff_t);
 struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool);
 int do_write_data_page(struct page *, struct f2fs_io_info *);
 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *, u64, u64);
+void f2fs_invalidate_page(struct page *, unsigned int, unsigned int);
+int f2fs_release_page(struct page *, gfp_t);
 
 /*
  * gc.c
@@ -1515,7 +1558,7 @@ struct f2fs_stat_info {
        int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta;
        int nats, dirty_nats, sits, dirty_sits, fnids;
        int total_count, utilization;
-       int bg_gc, inline_inode, inline_dir, inmem_pages;
+       int bg_gc, inline_inode, inline_dir, inmem_pages, wb_pages;
        unsigned int valid_count, valid_node_count, valid_inode_count;
        unsigned int bimodal, avg_vblocks;
        int util_free, util_valid, util_invalid;
@@ -1638,6 +1681,7 @@ extern const struct address_space_operations f2fs_meta_aops;
 extern const struct inode_operations f2fs_dir_inode_operations;
 extern const struct inode_operations f2fs_symlink_inode_operations;
 extern const struct inode_operations f2fs_special_inode_operations;
+extern struct kmem_cache *inode_entry_slab;
 
 /*
  * inline.c
@@ -1648,7 +1692,6 @@ int f2fs_read_inline_data(struct inode *, struct page *);
 int f2fs_convert_inline_page(struct dnode_of_data *, struct page *);
 int f2fs_convert_inline_inode(struct inode *);
 int f2fs_write_inline_data(struct inode *, struct page *);
-void truncate_inline_data(struct page *, u64);
 bool recover_inline_data(struct inode *, struct page *);
 struct f2fs_dir_entry *find_in_inline_dir(struct inode *, struct qstr *,
                                                        struct page **);