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>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0aa337c..a270726 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -953,15 +953,14 @@
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_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 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 @@
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);
