For forensic investigations of issues, we would want to know
if and when the user cancels the replace.
Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
v1->v2: use btrfs_dev_name() instead of rcu_str_deref()
as btrfs_dev_name() also provides "missing" string,
if needed.
fs/btrfs/dev-replace.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index dd717e204b5e..3b0760f7ec8a 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -703,6 +703,7 @@ int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
{
struct btrfs_dev_replace *dev_replace = &fs_info->dev_replace;
struct btrfs_device *tgt_device = NULL;
+ struct btrfs_device *src_device = NULL;
struct btrfs_trans_handle *trans;
struct btrfs_root *root = fs_info->tree_root;
int result;
@@ -724,6 +725,7 @@ int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
case BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED:
result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR;
tgt_device = dev_replace->tgtdev;
+ src_device = dev_replace->srcdev;
dev_replace->tgtdev = NULL;
dev_replace->srcdev = NULL;
break;
@@ -741,6 +743,11 @@ int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
}
ret = btrfs_commit_transaction(trans);
WARN_ON(ret);
+
+ btrfs_info(fs_info, "dev_replace from %s (devid %llu) to %s canceled",
+ btrfs_dev_name(src_device), src_device->devid,
+ btrfs_dev_name(tgt_device));
+
if (tgt_device)
btrfs_destroy_dev_replace_tgtdev(fs_info, tgt_device);
--
2.15.0
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