From 11395c8b1918476a402ff74d8d5c6eb1cefc7e30 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 14 May 2015 18:19:01 -0400 Subject: [PATCH] ext4: fix lazytime optimization commit 8f4d855839179f410fa910a26eb81d646d628f26 upstream. We had a fencepost error in the lazytime optimization which means that timestamp would get written to the wrong inode. Signed-off-by: Theodore Ts'o Signed-off-by: Greg Kroah-Hartman --- fs/ext4/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 852cc521f327a..1f252b4e0f51d 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4233,7 +4233,7 @@ static void ext4_update_other_inodes_time(struct super_block *sb, int inode_size = EXT4_INODE_SIZE(sb); oi.orig_ino = orig_ino; - ino = orig_ino & ~(inodes_per_block - 1); + ino = (orig_ino & ~(inodes_per_block - 1)) + 1; for (i = 0; i < inodes_per_block; i++, ino++, buf += inode_size) { if (ino == orig_ino) continue; -- 2.47.2