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Message-ID: <CAOE4rSxCxGMNx1+0NRzMpY1Jhz61E+YOmqUhz58Ds91me1ZCAA@mail.gmail.com>
Date:   Sat, 5 Feb 2022 20:50:37 +0200
From:   Dāvis Mosāns <davispuh@...il.com>
To:     BTRFS <linux-btrfs@...r.kernel.org>
Cc:     Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
        David Sterba <dsterba@...e.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] btrfs: send: in case of IO error log it

> diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
> index d8ccb62aa7d2..a1fd449a5ecc 100644
> --- a/fs/btrfs/send.c
> +++ b/fs/btrfs/send.c
> @@ -5000,6 +5000,8 @@ static int put_file_data(struct send_ctx *sctx, u64 offset, u32 len)
>                         if (!PageUptodate(page)) {
>                                 unlock_page(page);
>                                 put_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);

Thought more about this and I'm guessing using page after put_page is
probably wrong but it did work fine. Submitted v3.

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