From 6afc76b44eb52f11cbbbace33daa5b27ef9cd52f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?D=C4=81vis=20Mos=C4=81ns?= Date: Sat, 5 Feb 2022 20:48:23 +0200 Subject: [PATCH] btrfs: send: in case of IO error log it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: David Sterba Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/send.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 080b12d65b0c..35dea3f86fdf 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4675,6 +4675,10 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len) 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;