f2fs: fix wrong block address calculation for a split extent

This patch fixes wrong calculation on block address field when an extent is
split.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index f71e19a9dd3c18fc6ee7b3bcb4f3da9c8b8c3d4c..d1d86d53d1dc69ef719612d7c90edd21217b7af5 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -674,7 +674,7 @@ static void f2fs_update_extent_tree(struct inode *inode, pgoff_t fofs,
                endofs = dei.fofs + dei.len - 1;
                if (endofs - fofs >= F2FS_MIN_EXTENT_LEN) {
                        set_extent_info(&ei, fofs + 1,
-                               fofs - dei.fofs + dei.blk, endofs - fofs);
+                               fofs - dei.fofs + dei.blk + 1, endofs - fofs);
                        en2 = __insert_extent_tree(sbi, et, &ei, NULL);
                }
        }