f2fs: write only the pages in range during defragment
@lend of filemap_write_and_wait_range is supposed to be a "offset
in bytes where the range ends (inclusive)". Subtract 1 to avoid
writing an extra page.
Signed-off-by: Fan li <fanofcode.li@samsung.com>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 294e715..5fac4f2 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1686,7 +1686,7 @@
/* writeback all dirty pages in the range */
err = filemap_write_and_wait_range(inode->i_mapping, range->start,
- range->start + range->len);
+ range->start + range->len - 1);
if (err)
goto out;