[PATCH] 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 <jaegeuk@xxxxxxxxxx>
---
 fs/f2fs/dir.c    | 7 ++++++-
 fs/f2fs/inline.c | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 5a49995..fabf4ee 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)) {
+		flush_dcache_page(page);
 		kunmap(page);
+	}
 	set_page_dirty(page);
 	dir->i_mtime = dir->i_ctime = CURRENT_TIME;
 	mark_inode_dirty(dir);
@@ -365,6 +367,7 @@ static int make_empty_dir(struct inode *inode,
 	make_dentry_ptr(&d, (void *)dentry_blk, 1);
 	do_make_empty_dir(inode, parent, &d);
 
+	flush_dcache_page(dentry_page);
 	kunmap_atomic(dentry_blk);
 
 	set_page_dirty(dentry_page);
@@ -578,6 +581,7 @@ fail:
 		update_inode_page(dir);
 		clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR);
 	}
+	flush_dcache_page(dentry_page);
 	kunmap(dentry_page);
 	f2fs_put_page(dentry_page, 1);
 	return err;
@@ -660,6 +664,7 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
 	bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap,
 			NR_DENTRY_IN_BLOCK,
 			0);
+	flush_dcache_page(page);
 	kunmap(page); /* kunmap - pair of f2fs_find_entry */
 	set_page_dirty(page);
 
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index f26fb87..4291c1f 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -106,6 +106,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
 	src_addr = inline_data_addr(dn->inode_page);
 	dst_addr = kmap_atomic(page);
 	memcpy(dst_addr, src_addr, MAX_INLINE_DATA);
+	flush_dcache_page(page);
 	kunmap_atomic(dst_addr);
 	SetPageUptodate(page);
 no_update:
@@ -357,6 +358,7 @@ static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage,
 	memcpy(dentry_blk->filename, inline_dentry->filename,
 					NR_INLINE_DENTRY * F2FS_SLOT_LEN);
 
+	flush_dcache_page(page);
 	kunmap_atomic(dentry_blk);
 	SetPageUptodate(page);
 	set_page_dirty(page);
-- 
2.1.1


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