From: robbieko <robbieko@synology.com>
To: linux-btrfs@vger.kernel.org
Cc: Robbie Ko <robbieko@synology.com>
Subject: [PATCH 4/5] Btrfs: incremental send, add gen check in did_overwrite_ref
Date: Wed, 12 Oct 2016 16:12:49 +0800 [thread overview]
Message-ID: <1476259970-1866-5-git-send-email-robbieko@synology.com> (raw)
In-Reply-To: <1476259970-1866-1-git-send-email-robbieko@synology.com>
From: Robbie Ko <robbieko@synology.com>
There a some case similar as before.
add check parent generation in the did_overwrite_ref.
Signed-off-by: Robbie Ko <robbieko@synology.com>
---
fs/btrfs/send.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index d908624..e090db2 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1939,6 +1939,19 @@ static int did_overwrite_ref(struct send_ctx *sctx,
if (ret <= 0)
goto out;
+ if (dir != BTRFS_FIRST_FREE_OBJECTID) {
+ ret = get_inode_info(sctx->send_root, dir, NULL, &gen, NULL,
+ NULL, NULL, NULL);
+ if (ret < 0 && ret != -ENOENT)
+ goto out;
+ if (ret) {
+ ret = 0;
+ goto out;
+ }
+ if (gen != dir_gen)
+ goto out;
+ }
+
/* check if the ref was overwritten by another ref */
ret = lookup_dir_item_inode(sctx->send_root, dir, name, name_len,
&ow_inode, &other_type);
--
1.9.1
next prev parent reply other threads:[~2016-10-12 8:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-12 8:12 [PATCH 0/5] Btrfs: incremental send, fix serval case for root and gen robbieko
2016-10-12 8:12 ` [PATCH 1/5] Btrfs: incremental send, fix don't skip root inode in overwrite_ref robbieko
2016-10-12 9:09 ` Filipe Manana
2016-10-12 8:12 ` [PATCH 2/5] Btrfs: incremental send, add gen for is_waiting_for_rm when some corner case robbieko
2016-10-12 9:11 ` Filipe Manana
2016-10-12 8:12 ` [PATCH 3/5] Btrfs: incremental send, add gen in waiting_dir_move for " robbieko
2016-10-12 9:13 ` Filipe Manana
2016-10-12 8:12 ` robbieko [this message]
2016-10-12 9:14 ` [PATCH 4/5] Btrfs: incremental send, add gen check in did_overwrite_ref Filipe Manana
2016-10-12 8:12 ` [PATCH 5/5] Btrfs: incremental send, add gen check if has waiting_dir_move in the will_overwrite_ref robbieko
2016-10-12 9:15 ` Filipe Manana
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