If the written page was mapped more than twice, the
written data here will not be seen by others. We add
the flush_dcache_page to fix it.
Fixes:0a2aa8fbb9693 ("f2fs: refactor __exchange_data_block for speed up")
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
---
fs/f2fs/file.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index ab9844eaa62c..b593e41dbfb3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1273,6 +1273,7 @@ static int __clone_blkaddrs(struct inode *src_inode,
struct inode *dst_inode,
return PTR_ERR(pdst);
}
memcpy_page(pdst, 0, psrc, 0, PAGE_SIZE);
+ flush_dcache_page(pdst);
set_page_dirty(pdst);
f2fs_put_page(pdst, 1);
f2fs_put_page(psrc, 1);
--
2.25.1
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