[PATCH 1/3] f2fs: call flush_dcache_page when the page was updated

[Jaegeuk Kim]

Whenever f2fs updates mapped pages, it needs to call flush_dcache_page.

Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
 fs/f2fs/dir.c    | 7 ++++++-
 fs/f2fs/inline.c | 4 +++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 5a49995..312fbfc 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -287,8 +287,10 @@ void f2fs_set_link(struct inode *dir, struct 
f2fs_dir_entry *de,
        f2fs_wait_on_page_writeback(page, type);
        de->ino = cpu_to_le32(inode->i_ino);
        set_de_type(de, inode);
-       if (!f2fs_has_inline_dentry(dir))
+       if (!f2fs_has_inline_dentry(dir)) {
                kunmap(page);
+               flush_dcache_page(page);
+       }
        set_page_dirty(page);
        dir->i_mtime = dir->i_ctime = CURRENT_TIME;
        mark_inode_dirty(dir);
@@ -366,6 +368,7 @@ static int make_empty_dir(struct inode *inode,
        do_make_empty_dir(inode, parent, &d);
 
        kunmap_atomic(dentry_blk);
+       flush_dcache_page(dentry_page);
 
        set_page_dirty(dentry_page);
        f2fs_put_page(dentry_page, 1);
@@ -579,6 +582,7 @@ fail:
                clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR);
        }
        kunmap(dentry_page);
+       flush_dcache_page(dentry_page);
        f2fs_put_page(dentry_page, 1);
        return err;
 }
@@ -661,6 +665,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, 
struct page *page,
                        NR_DENTRY_IN_BLOCK,
                        0);
        kunmap(page); /* kunmap - pair of f2fs_find_entry */
+       flush_dcache_page(page);
        set_page_dirty(page);
 
        dir->i_ctime = dir->i_mtime = CURRENT_TIME;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index f26fb87..8b7cc51 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -45,8 +45,8 @@ void read_inline_data(struct page *page, struct page *ipage)
        src_addr = inline_data_addr(ipage);
        dst_addr = kmap_atomic(page);
        memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
-       flush_dcache_page(page);
        kunmap_atomic(dst_addr);
+       flush_dcache_page(page);
        SetPageUptodate(page);
 }
 
@@ -107,6 +107,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, 
struct page *page)
        dst_addr = kmap_atomic(page);
        memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
        kunmap_atomic(dst_addr);
+       flush_dcache_page(page);
        SetPageUptodate(page);
 no_update:
        /* write data page to try to make data consistent */
@@ -358,6 +359,7 @@ static int f2fs_convert_inline_dir(struct inode *dir, 
struct page *ipage,
                                        NR_INLINE_DENTRY * F2FS_SLOT_LEN);
 
        kunmap_atomic(dentry_blk);
+       flush_dcache_page(page);
        SetPageUptodate(page);
        set_page_dirty(page);
 
-- 
2.1.1

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