From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 18 Jun 2015 21:17:04 +0000 (-0700)
Subject: f2fs: fix wrong block address calculation for a split extent
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7a2cb67867b9a7f28a7c4d0fadd2f337a6d46ff7;p=deliverable%2Flinux.git

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 f71e19a9dd3c..d1d86d53d1dc 100644
--- 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);
 		}
 	}