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 <liubo2009@xxxxxxxxxxxxxx> --- fs/btrfs/ioctl.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 7a6d15c..e3cb770 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1172,6 +1172,9 @@ 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); -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
