f2fs: introduce F2FS_I_SB, F2FS_M_SB, and F2FS_P_SB

This patch adds three inline functions to clean up dirty casting codes.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

14 files changed, 103 insertions, 114 deletions

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index ec3b7a5381fa..cb5cb4ca1814 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -151,8 +151,7 @@ out:
 static int f2fs_write_meta_page(struct page *page,
                                 struct writeback_control *wbc)
 {
-        struct inode *inode = page->mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_P_SB(page);
 
         trace_f2fs_writepage(page, META);
 
@@ -177,7 +176,7 @@ redirty_out:
 static int f2fs_write_meta_pages(struct address_space *mapping,
                                 struct writeback_control *wbc)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
         long diff, written;
 
         trace_f2fs_writepages(mapping->host, wbc, META);
@@ -259,15 +258,12 @@ continue_unlock:
 
 static int f2fs_set_meta_page_dirty(struct page *page)
 {
-        struct address_space *mapping = page->mapping;
-        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
-
         trace_f2fs_set_page_dirty(page, META);
 
         SetPageUptodate(page);
         if (!PageDirty(page)) {
                 __set_page_dirty_nobuffers(page);
-                inc_page_count(sbi, F2FS_DIRTY_META);
+                inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_META);
                 return 1;
         }
         return 0;
@@ -619,7 +615,7 @@ fail_no_cp:
 
 static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
         if (is_inode_flag_set(F2FS_I(inode), FI_DIRTY_DIR))
                 return -EEXIST;
@@ -633,7 +629,7 @@ static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new)
 
 void set_dirty_dir_page(struct inode *inode, struct page *page)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct dir_inode_entry *new;
         int ret = 0;
 
@@ -656,7 +652,7 @@ void set_dirty_dir_page(struct inode *inode, struct page *page)
 
 void add_dirty_dir_inode(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct dir_inode_entry *new =
                         f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
         int ret = 0;
@@ -674,7 +670,7 @@ void add_dirty_dir_inode(struct inode *inode)
 
 void remove_dirty_dir_inode(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct dir_inode_entry *entry;
 
         if (!S_ISDIR(inode->i_mode))
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 76de83e25a89..8eb6fcaa0a6b 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -236,7 +236,7 @@ static void __set_data_blkaddr(struct dnode_of_data *dn, block_t new_addr)
 
 int reserve_new_block(struct dnode_of_data *dn)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
 
         if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)))
                 return -EPERM;
@@ -396,7 +396,6 @@ end_update:
 
 struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct address_space *mapping = inode->i_mapping;
         struct dnode_of_data dn;
         struct page *page;
@@ -429,7 +428,7 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
                 return page;
         }
 
-        err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
+        err = f2fs_submit_page_bio(F2FS_I_SB(inode), page, dn.data_blkaddr,
                                         sync ? READ_SYNC : READA);
         if (err)
                 return ERR_PTR(err);
@@ -451,7 +450,6 @@ struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
  */
 struct page *get_lock_data_page(struct inode *inode, pgoff_t index)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct address_space *mapping = inode->i_mapping;
         struct dnode_of_data dn;
         struct page *page;
@@ -490,7 +488,8 @@ repeat:
                 return page;
         }
 
-        err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr, READ_SYNC);
+        err = f2fs_submit_page_bio(F2FS_I_SB(inode), page,
+                                        dn.data_blkaddr, READ_SYNC);
         if (err)
                 return ERR_PTR(err);
 
@@ -517,7 +516,6 @@ repeat:
 struct page *get_new_data_page(struct inode *inode,
                 struct page *ipage, pgoff_t index, bool new_i_size)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct address_space *mapping = inode->i_mapping;
         struct page *page;
         struct dnode_of_data dn;
@@ -541,8 +539,8 @@ repeat:
                 zero_user_segment(page, 0, PAGE_CACHE_SIZE);
                 SetPageUptodate(page);
         } else {
-                err = f2fs_submit_page_bio(sbi, page, dn.data_blkaddr,
-                                                                READ_SYNC);
+                err = f2fs_submit_page_bio(F2FS_I_SB(inode), page,
+                                                dn.data_blkaddr, READ_SYNC);
                 if (err)
                         goto put_err;
 
@@ -573,7 +571,7 @@ put_err:
 
 static int __allocate_data_block(struct dnode_of_data *dn)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct f2fs_summary sum;
         block_t new_blkaddr;
         struct node_info ni;
@@ -614,7 +612,6 @@ static int __allocate_data_block(struct dnode_of_data *dn)
 static int __get_data_block(struct inode *inode, sector_t iblock,
                         struct buffer_head *bh_result, int create, bool fiemap)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         unsigned int blkbits = inode->i_sb->s_blocksize_bits;
         unsigned maxblocks = bh_result->b_size >> blkbits;
         struct dnode_of_data dn;
@@ -630,8 +627,8 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
                 goto out;
 
         if (create) {
-                f2fs_balance_fs(sbi);
-                f2fs_lock_op(sbi);
+                f2fs_balance_fs(F2FS_I_SB(inode));
+                f2fs_lock_op(F2FS_I_SB(inode));
         }
 
         /* When reading holes, we need its node page */
@@ -707,7 +704,7 @@ put_out:
         f2fs_put_dnode(&dn);
 unlock_out:
         if (create)
-                f2fs_unlock_op(sbi);
+                f2fs_unlock_op(F2FS_I_SB(inode));
 out:
         trace_f2fs_get_data_block(inode, iblock, bh_result, err);
         return err;
@@ -804,7 +801,7 @@ static int f2fs_write_data_page(struct page *page,
                                         struct writeback_control *wbc)
 {
         struct inode *inode = page->mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         loff_t i_size = i_size_read(inode);
         const pgoff_t end_index = ((unsigned long long) i_size)
                                                         >> PAGE_CACHE_SHIFT;
@@ -892,7 +889,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
                             struct writeback_control *wbc)
 {
         struct inode *inode = mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         bool locked = false;
         int ret;
         long diff;
@@ -945,7 +942,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
                 struct page **pagep, void **fsdata)
 {
         struct inode *inode = mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct page *page;
         pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
         struct dnode_of_data dn;
@@ -1093,7 +1090,7 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
                 return 0;
 
         /* clear fsync mark to recover these blocks */
-        fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
+        fsync_mark_clear(F2FS_I_SB(inode), inode->i_ino);
 
         trace_f2fs_direct_IO_enter(inode, offset, count, rw);
 
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 155fb056b7f1..c242904d9724 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -284,10 +284,9 @@ static void init_dent_inode(const struct qstr *name, struct page *ipage)
 
 int update_dent_inode(struct inode *inode, const struct qstr *name)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct page *page;
 
-        page = get_node_page(sbi, inode->i_ino);
+        page = get_node_page(F2FS_I_SB(inode), inode->i_ino);
         if (IS_ERR(page))
                 return PTR_ERR(page);
 
@@ -337,7 +336,6 @@ static int make_empty_dir(struct inode *inode,
 static struct page *init_inode_metadata(struct inode *inode,
                 struct inode *dir, const struct qstr *name)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
         struct page *page;
         int err;
 
@@ -360,7 +358,7 @@ static struct page *init_inode_metadata(struct inode *inode,
                 if (err)
                         goto put_error;
         } else {
-                page = get_node_page(F2FS_SB(dir->i_sb), inode->i_ino);
+                page = get_node_page(F2FS_I_SB(dir), inode->i_ino);
                 if (IS_ERR(page))
                         return page;
 
@@ -381,7 +379,7 @@ static struct page *init_inode_metadata(struct inode *inode,
                  * we should remove this inode from orphan list.
                  */
                 if (inode->i_nlink == 0)
-                        remove_orphan_inode(sbi, inode->i_ino);
+                        remove_orphan_inode(F2FS_I_SB(dir), inode->i_ino);
                 inc_nlink(inode);
         }
         return page;
@@ -571,8 +569,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
 {
         struct  f2fs_dentry_block *dentry_blk;
         unsigned int bit_pos;
-        struct address_space *mapping = page->mapping;
-        struct inode *dir = mapping->host;
+        struct inode *dir = page->mapping->host;
         int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
         int i;
 
@@ -594,7 +591,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
         dir->i_ctime = dir->i_mtime = CURRENT_TIME;
 
         if (inode) {
-                struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+                struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 
                 down_write(&F2FS_I(inode)->i_sem);
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e921242186f6..222ff5b4d1e1 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -539,6 +539,21 @@ static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
         return sb->s_fs_info;
 }
 
+static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
+{
+        return F2FS_SB(inode->i_sb);
+}
+
+static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
+{
+        return F2FS_I_SB(mapping->host);
+}
+
+static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
+{
+        return F2FS_M_SB(page->mapping);
+}
+
 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
 {
         return (struct f2fs_super_block *)(sbi->raw_super);
@@ -718,7 +733,7 @@ static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
 
 static inline void inode_inc_dirty_dents(struct inode *inode)
 {
-        inc_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS);
+        inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS);
         atomic_inc(&F2FS_I(inode)->dirty_dents);
 }
 
@@ -732,7 +747,7 @@ static inline void inode_dec_dirty_dents(struct inode *inode)
         if (!S_ISDIR(inode->i_mode))
                 return;
 
-        dec_page_count(F2FS_SB(inode->i_sb), F2FS_DIRTY_DENTS);
+        dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_DENTS);
         atomic_dec(&F2FS_I(inode)->dirty_dents);
 }
 
@@ -1359,12 +1374,12 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
 #define stat_inc_inline_inode(inode)                                    \
         do {                                                            \
                 if (f2fs_has_inline_data(inode))                        \
-                        ((F2FS_SB(inode->i_sb))->inline_inode++);       \
+                        ((F2FS_I_SB(inode))->inline_inode++);           \
         } while (0)
 #define stat_dec_inline_inode(inode)                                    \
         do {                                                            \
                 if (f2fs_has_inline_data(inode))                        \
-                        ((F2FS_SB(inode->i_sb))->inline_inode--);       \
+                        ((F2FS_I_SB(inode))->inline_inode--);           \
         } while (0)
 
 #define stat_inc_seg_type(sbi, curseg)                                  \
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 060aee65aee8..411f053720c2 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -33,7 +33,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 {
         struct page *page = vmf->page;
         struct inode *inode = file_inode(vma->vm_file);
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct dnode_of_data dn;
         int err;
 
@@ -117,7 +117,7 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
 
 static inline bool need_do_checkpoint(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         bool need_cp = false;
 
         if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
@@ -138,7 +138,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 {
         struct inode *inode = file->f_mapping->host;
         struct f2fs_inode_info *fi = F2FS_I(inode);
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         int ret = 0;
         bool need_cp = false;
         struct writeback_control wbc = {
@@ -226,7 +226,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 flush_out:
                 remove_dirty_inode(sbi, inode->i_ino, UPDATE_INO);
                 clear_inode_flag(fi, FI_UPDATE_WRITE);
-                ret = f2fs_issue_flush(F2FS_SB(inode->i_sb));
+                ret = f2fs_issue_flush(F2FS_I_SB(inode));
         }
 out:
         trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
@@ -369,7 +369,7 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
 int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 {
         int nr_free = 0, ofs = dn->ofs_in_node;
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct f2fs_node *raw_node;
         __le32 *addr;
 
@@ -432,7 +432,7 @@ out:
 
 int truncate_blocks(struct inode *inode, u64 from, bool lock)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         unsigned int blocksize = inode->i_sb->s_blocksize;
         struct dnode_of_data dn;
         pgoff_t free_from;
@@ -555,7 +555,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 
                 truncate_setsize(inode, attr->ia_size);
                 f2fs_truncate(inode);
-                f2fs_balance_fs(F2FS_SB(inode->i_sb));
+                f2fs_balance_fs(F2FS_I_SB(inode));
         }
 
         __setattr_copy(inode, attr);
@@ -589,7 +589,7 @@ const struct inode_operations f2fs_file_inode_operations = {
 static void fill_zero(struct inode *inode, pgoff_t index,
                                         loff_t start, loff_t len)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct page *page;
 
         if (!len)
@@ -661,7 +661,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
                 if (pg_start < pg_end) {
                         struct address_space *mapping = inode->i_mapping;
                         loff_t blk_start, blk_end;
-                        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+                        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
                         f2fs_balance_fs(sbi);
 
@@ -682,7 +682,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 static int expand_inode_data(struct inode *inode, loff_t offset,
                                         loff_t len, int mode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         pgoff_t index, pg_start, pg_end;
         loff_t new_size = i_size_read(inode);
         loff_t off_start, off_end;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 3e8ecdf3742b..289f99e9a339 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -15,11 +15,10 @@
 
 bool f2fs_may_inline(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         block_t nr_blocks;
         loff_t i_size;
 
-        if (!test_opt(sbi, INLINE_DATA))
+        if (!test_opt(F2FS_I_SB(inode), INLINE_DATA))
                 return false;
 
         nr_blocks = F2FS_I(inode)->i_xattr_nid ? 3 : 2;
@@ -35,7 +34,6 @@ bool f2fs_may_inline(struct inode *inode)
 
 int f2fs_read_inline_data(struct inode *inode, struct page *page)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct page *ipage;
         void *src_addr, *dst_addr;
 
@@ -44,7 +42,7 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page)
                 goto out;
         }
 
-        ipage = get_node_page(sbi, inode->i_ino);
+        ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino);
         if (IS_ERR(ipage)) {
                 unlock_page(page);
                 return PTR_ERR(ipage);
@@ -73,7 +71,7 @@ static int __f2fs_convert_inline_data(struct inode *inode, struct page *page)
         struct dnode_of_data dn;
         void *src_addr, *dst_addr;
         block_t new_blk_addr;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct f2fs_io_info fio = {
                 .type = DATA,
                 .rw = WRITE_SYNC | REQ_PRIO,
@@ -189,13 +187,12 @@ int f2fs_write_inline_data(struct inode *inode,
 
 void truncate_inline_data(struct inode *inode, u64 from)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         struct page *ipage;
 
         if (from >= MAX_INLINE_DATA)
                 return;
 
-        ipage = get_node_page(sbi, inode->i_ino);
+        ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino);
         if (IS_ERR(ipage))
                 return;
 
@@ -209,7 +206,7 @@ void truncate_inline_data(struct inode *inode, u64 from)
 
 bool recover_inline_data(struct inode *inode, struct page *npage)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct f2fs_inode *ri = NULL;
         void *src_addr, *dst_addr;
         struct page *ipage;
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 2c39999f3868..bf99e1fe82a0 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -69,7 +69,7 @@ static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
 
 static int do_read_inode(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct f2fs_inode_info *fi = F2FS_I(inode);
         struct page *node_page;
         struct f2fs_inode *ri;
@@ -218,7 +218,7 @@ void update_inode(struct inode *inode, struct page *node_page)
 
 void update_inode_page(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct page *node_page;
 retry:
         node_page = get_node_page(sbi, inode->i_ino);
@@ -238,7 +238,7 @@ retry:
 
 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
         if (inode->i_ino == F2FS_NODE_INO(sbi) ||
                         inode->i_ino == F2FS_META_INO(sbi))
@@ -266,7 +266,7 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
  */
 void f2fs_evict_inode(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         nid_t xnid = F2FS_I(inode)->i_xattr_nid;
 
         trace_f2fs_evict_inode(inode);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index ee103fd7283c..ba0779d4cfd7 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -23,7 +23,7 @@
 
 static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         nid_t ino;
         struct inode *inode;
         bool nid_free = false;
@@ -102,7 +102,7 @@ static inline void set_cold_files(struct f2fs_sb_info *sbi, struct inode *inode,
 static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
                                                 bool excl)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode;
         nid_t ino = 0;
         int err;
@@ -143,7 +143,7 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
                 struct dentry *dentry)
 {
         struct inode *inode = old_dentry->d_inode;
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         int err;
 
         f2fs_balance_fs(sbi);
@@ -203,7 +203,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
 
 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode = dentry->d_inode;
         struct f2fs_dir_entry *de;
         struct page *page;
@@ -237,7 +237,7 @@ fail:
 static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
                                         const char *symname)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode;
         size_t symlen = strlen(symname) + 1;
         int err;
@@ -272,7 +272,7 @@ out:
 
 static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode;
         int err;
 
@@ -320,7 +320,7 @@ static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
 static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
                                 umode_t mode, dev_t rdev)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode;
         int err = 0;
 
@@ -356,7 +356,7 @@ out:
 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
                         struct inode *new_dir, struct dentry *new_dentry)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(old_dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
         struct inode *old_inode = old_dentry->d_inode;
         struct inode *new_inode = new_dentry->d_inode;
         struct page *old_dir_page;
@@ -480,8 +480,7 @@ out:
 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
                              struct inode *new_dir, struct dentry *new_dentry)
 {
-        struct super_block *sb = old_dir->i_sb;
-        struct f2fs_sb_info *sbi = F2FS_SB(sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
         struct inode *old_inode = old_dentry->d_inode;
         struct inode *new_inode = new_dentry->d_inode;
         struct page *old_dir_page, *new_dir_page;
@@ -642,7 +641,7 @@ static int f2fs_rename2(struct inode *old_dir, struct dentry *old_dentry,
 
 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
         struct inode *inode;
         int err;
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 45378196e19a..725a47130b82 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -54,7 +54,6 @@ bool available_free_memory(struct f2fs_sb_info *sbi, int type)
 static void clear_node_page_dirty(struct page *page)
 {
         struct address_space *mapping = page->mapping;
-        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
         unsigned int long flags;
 
         if (PageDirty(page)) {
@@ -65,7 +64,7 @@ static void clear_node_page_dirty(struct page *page)
                 spin_unlock_irqrestore(&mapping->tree_lock, flags);
 
                 clear_page_dirty_for_io(page);
-                dec_page_count(sbi, F2FS_DIRTY_NODES);
+                dec_page_count(F2FS_M_SB(mapping), F2FS_DIRTY_NODES);
         }
         ClearPageUptodate(page);
 }
@@ -411,7 +410,7 @@ got:
  */
 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct page *npage[4];
         struct page *parent;
         int offset[4];
@@ -504,7 +503,7 @@ release_out:
 
 static void truncate_node(struct dnode_of_data *dn)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct node_info ni;
 
         get_node_info(sbi, dn->nid, &ni);
@@ -540,14 +539,13 @@ invalidate:
 
 static int truncate_dnode(struct dnode_of_data *dn)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
         struct page *page;
 
         if (dn->nid == 0)
                 return 1;
 
         /* get direct node */
-        page = get_node_page(sbi, dn->nid);
+        page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);
         if (IS_ERR(page) && PTR_ERR(page) == -ENOENT)
                 return 1;
         else if (IS_ERR(page))
@@ -564,7 +562,6 @@ static int truncate_dnode(struct dnode_of_data *dn)
 static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,
                                                 int ofs, int depth)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
         struct dnode_of_data rdn = *dn;
         struct page *page;
         struct f2fs_node *rn;
@@ -578,7 +575,7 @@ static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,
 
         trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr);
 
-        page = get_node_page(sbi, dn->nid);
+        page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);
         if (IS_ERR(page)) {
                 trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page));
                 return PTR_ERR(page);
@@ -636,7 +633,6 @@ out_err:
 static int truncate_partial_nodes(struct dnode_of_data *dn,
                         struct f2fs_inode *ri, int *offset, int depth)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
         struct page *pages[2];
         nid_t nid[3];
         nid_t child_nid;
@@ -651,7 +647,7 @@ static int truncate_partial_nodes(struct dnode_of_data *dn,
         /* get indirect nodes in the path */
         for (i = 0; i < idx + 1; i++) {
                 /* reference count'll be increased */
-                pages[i] = get_node_page(sbi, nid[i]);
+                pages[i] = get_node_page(F2FS_I_SB(dn->inode), nid[i]);
                 if (IS_ERR(pages[i])) {
                         err = PTR_ERR(pages[i]);
                         idx = i - 1;
@@ -696,7 +692,7 @@ fail:
  */
 int truncate_inode_blocks(struct inode *inode, pgoff_t from)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         int err = 0, cont = 1;
         int level, offset[4], noffset[4];
         unsigned int nofs = 0;
@@ -792,7 +788,7 @@ fail:
 
 int truncate_xattr_node(struct inode *inode, struct page *page)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         nid_t nid = F2FS_I(inode)->i_xattr_nid;
         struct dnode_of_data dn;
         struct page *npage;
@@ -860,7 +856,7 @@ struct page *new_inode_page(struct inode *inode)
 struct page *new_node_page(struct dnode_of_data *dn,
                                 unsigned int ofs, struct page *ipage)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct node_info old_ni, new_ni;
         struct page *page;
         int err;
@@ -918,7 +914,7 @@ fail:
  */
 static int read_node_page(struct page *page, int rw)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_P_SB(page);
         struct node_info ni;
 
         get_node_info(sbi, page->index, &ni);
@@ -994,7 +990,7 @@ got_it:
  */
 struct page *get_node_page_ra(struct page *parent, int start)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(parent->mapping->host->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_P_SB(parent);
         struct blk_plug plug;
         struct page *page;
         int err, i, end;
@@ -1206,7 +1202,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
 static int f2fs_write_node_page(struct page *page,
                                 struct writeback_control *wbc)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_P_SB(page);
         nid_t nid;
         block_t new_addr;
         struct node_info ni;
@@ -1257,7 +1253,7 @@ redirty_out:
 static int f2fs_write_node_pages(struct address_space *mapping,
                             struct writeback_control *wbc)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_M_SB(mapping);
         long diff;
 
         trace_f2fs_writepages(mapping->host, wbc, NODE);
@@ -1282,15 +1278,12 @@ skip_write:
 
 static int f2fs_set_node_page_dirty(struct page *page)
 {
-        struct address_space *mapping = page->mapping;
-        struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
-
         trace_f2fs_set_page_dirty(page, NODE);
 
         SetPageUptodate(page);
         if (!PageDirty(page)) {
                 __set_page_dirty_nobuffers(page);
-                inc_page_count(sbi, F2FS_DIRTY_NODES);
+                inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES);
                 SetPagePrivate(page);
                 return 1;
         }
@@ -1301,9 +1294,8 @@ static void f2fs_invalidate_node_page(struct page *page, unsigned int offset,
                                       unsigned int length)
 {
         struct inode *inode = page->mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         if (PageDirty(page))
-                dec_page_count(sbi, F2FS_DIRTY_NODES);
+                dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_NODES);
         ClearPagePrivate(page);
 }
 
@@ -1551,13 +1543,12 @@ void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid)
 
 void recover_inline_xattr(struct inode *inode, struct page *page)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
         void *src_addr, *dst_addr;
         size_t inline_size;
         struct page *ipage;
         struct f2fs_inode *ri;
 
-        ipage = get_node_page(sbi, inode->i_ino);
+        ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino);
         f2fs_bug_on(IS_ERR(ipage));
 
         ri = F2FS_INODE(page);
@@ -1579,7 +1570,7 @@ update_inode:
 
 void recover_xattr_data(struct inode *inode, struct page *page, block_t blkaddr)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid;
         nid_t new_xnid = nid_of_node(page);
         struct node_info ni;
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 8a116a407599..b24f588a0fe4 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -197,8 +197,7 @@ static inline void copy_node_footer(struct page *dst, struct page *src)
 
 static inline void fill_node_footer_blkaddr(struct page *page, block_t blkaddr)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
-        struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
+        struct f2fs_checkpoint *ckpt = F2FS_CKPT(F2FS_P_SB(page));
         struct f2fs_node *rn = F2FS_NODE(page);
 
         rn->footer.cp_ver = ckpt->checkpoint_ver;
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 756c41cd2582..5c095f7ac21c 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -75,7 +75,7 @@ retry:
                                 err = -EEXIST;
                         goto out_unmap_put;
                 }
-                err = acquire_orphan_inode(F2FS_SB(inode->i_sb));
+                err = acquire_orphan_inode(F2FS_I_SB(inode));
                 if (err) {
                         iput(einode);
                         goto out_unmap_put;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0aa337cd5bba..a270726e3367 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -953,15 +953,14 @@ static int __get_segment_type_6(struct page *page, enum page_type p_type)
 
 static int __get_segment_type(struct page *page, enum page_type p_type)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
-        switch (sbi->active_logs) {
+        switch (F2FS_P_SB(page)->active_logs) {
         case 2:
                 return __get_segment_type_2(page, p_type);
         case 4:
                 return __get_segment_type_4(page, p_type);
         }
         /* NR_CURSEG_TYPE(6) logs by default */
-        f2fs_bug_on(sbi->active_logs != NR_CURSEG_TYPE);
+        f2fs_bug_on(F2FS_P_SB(page)->active_logs != NR_CURSEG_TYPE);
         return __get_segment_type_6(page, p_type);
 }
 
@@ -1041,7 +1040,7 @@ void write_node_page(struct f2fs_sb_info *sbi, struct page *page,
 void write_data_page(struct page *page, struct dnode_of_data *dn,
                 block_t *new_blkaddr, struct f2fs_io_info *fio)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
         struct f2fs_summary sum;
         struct node_info ni;
 
@@ -1055,9 +1054,7 @@ void write_data_page(struct page *page, struct dnode_of_data *dn,
 void rewrite_data_page(struct page *page, block_t old_blkaddr,
                                         struct f2fs_io_info *fio)
 {
-        struct inode *inode = page->mapping->host;
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-        f2fs_submit_page_mbio(sbi, page, old_blkaddr, fio);
+        f2fs_submit_page_mbio(F2FS_P_SB(page), page, old_blkaddr, fio);
 }
 
 void recover_data_page(struct f2fs_sb_info *sbi,
@@ -1130,8 +1127,9 @@ out:
 void f2fs_wait_on_page_writeback(struct page *page,
                                 enum page_type type)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
         if (PageWriteback(page)) {
+                struct f2fs_sb_info *sbi = F2FS_P_SB(page);
+
                 if (is_merged_page(sbi, page, type))
                         f2fs_submit_merged_bio(sbi, type, WRITE);
                 wait_on_page_writeback(page);
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index ff483257283b..793ca27b9c88 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -480,7 +480,7 @@ enum {
 
 static inline bool need_inplace_update(struct inode *inode)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
         /* IPU can be done only for the user data */
         if (S_ISDIR(inode->i_mode))
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 728a5dc3dc16..d92a47da62b8 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -266,7 +266,7 @@ static struct f2fs_xattr_entry *__find_xattr(void *base_addr, int index,
 
 static void *read_all_xattrs(struct inode *inode, struct page *ipage)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         struct f2fs_xattr_header *header;
         size_t size = PAGE_SIZE, inline_size = 0;
         void *txattr_addr;
@@ -325,7 +325,7 @@ fail:
 static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
                                 void *txattr_addr, struct page *ipage)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         size_t inline_size = 0;
         void *xattr_addr;
         struct page *xpage;
@@ -596,7 +596,7 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
                                 const void *value, size_t size,
                                 struct page *ipage, int flags)
 {
-        struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+        struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
         int err;
 
         /* this case is only from init_inode_metadata */