From e1f041e14cfb322f41f41a308bfede00f1b080cd Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Thu, 29 Mar 2012 09:57:45 -0400 Subject: [PATCH] Btrfs: update to the right index of defragment When we use autodefrag, we forget to update the index which indicates the last page we've dirty. And we'll set dirty flags on a same set of pages again and again. Signed-off-by: Liu Bo Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index afde837644e5..18cc23d164a8 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1186,6 +1186,9 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, if (newer_off == (u64)-1) break; + if (ret > 0) + i += ret; + newer_off = max(newer_off + 1, (u64)i << PAGE_CACHE_SHIFT); -- 2.20.1