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authorJan Schmidt <list.btrfs@jan-o-sch.net>2013-03-21 14:30:23 +0000
committerJosef Bacik <jbacik@fusionio.com>2013-03-28 09:51:26 -0400
commitadaa4b8e4d47eeb114513c2f7a172929154b94bd (patch)
treedc440dfabc838099c99dae06c9ed0d5361e87ac9 /fs
parent4adaa611020fa6ac65b0ac8db78276af4ec04e63 (diff)
downloadvexpress-lsk-adaa4b8e4d47eeb114513c2f7a172929154b94bd.tar.gz
Btrfs: fix EIO from btrfs send in is_extent_unchanged for punched holes
When you take a snapshot, punch a hole where there has been data, then take another snapshot and try to send an incremental stream, btrfs send would give you EIO. That is because is_extent_unchanged had no support for holes being punched. With this patch, instead of returning EIO we just return 0 (== the extent is not unchanged) and we're good. Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net> Cc: Alexander Block <ablock84@gmail.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/send.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 68da757615a..ed897dc1135 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3945,12 +3945,10 @@ static int is_extent_unchanged(struct send_ctx *sctx,
found_key.type != key.type) {
key.offset += right_len;
break;
- } else {
- if (found_key.offset != key.offset + right_len) {
- /* Should really not happen */
- ret = -EIO;
- goto out;
- }
+ }
+ if (found_key.offset != key.offset + right_len) {
+ ret = 0;
+ goto out;
}
key = found_key;
}