diff mbox series

[v1.1,07/14] btrfs-progs: lowmem: delete unaligned bytes extent data under repair

Message ID 20190227060552.3841-8-wqu@suse.com (mailing list archive)
State New, archived
Headers show
Series btrfs-progs: check: Use fs/subvol trees to fix extent tree, not vice versa | expand

Commit Message

Qu Wenruo Feb. 27, 2019, 6:05 a.m. UTC 
From: Su Yue <suy.fnst@cn.fujitsu.com>

If found a extent data item has unaligned part, lowmem repair
just deletes it.

Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 check/mode-lowmem.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/check/mode-lowmem.c b/check/mode-lowmem.c
index 7bd18902e106..bedf18628cc9 100644
--- a/check/mode-lowmem.c
+++ b/check/mode-lowmem.c
@@ -3037,6 +3037,7 @@  out:
 }
 
 /*
+ * If @err contains BYTES_UNALIGNED then delete the extent data item.
  * If @err contains BACKREF_MISSING then add extent of the
  * file_extent_data_item.
  *
@@ -3088,6 +3089,13 @@  static int repair_extent_data_item(struct btrfs_root *root,
 	else
 		parent = 0;
 
+	if (err & BYTES_UNALIGNED) {
+		ret = delete_item(root, pathp);
+		if (!ret)
+			err = 0;
+		goto out;
+	}
+
 	/* now repair only adds backref */
 	if ((err & BACKREF_MISSING) == 0)
 		return err;