From: Dāvis Mosāns davispuh@gmail.com
commit 2e7be9db125a0bf940c5d65eb5c40d8700f738b5 upstream.
Currently if we get IO error while doing send then we abort without logging information about which file caused issue. So log it to help with debugging.
CC: stable@vger.kernel.org # 4.9+ Signed-off-by: Dāvis Mosāns davispuh@gmail.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/send.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4944,6 +4944,10 @@ static ssize_t fill_read_buf(struct send lock_page(page); if (!PageUptodate(page)) { unlock_page(page); + btrfs_err(fs_info, + "send: IO error at offset %llu for inode %llu root %llu", + page_offset(page), sctx->cur_ino, + sctx->send_root->root_key.objectid); put_page(page); ret = -EIO; break;