From 97e4a8bd10d57eea0b8f3db9c6532965aecc815e Mon Sep 17 00:00:00 2001 From: =?utf8?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=utf8 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 ad570c3b6a0b..efab9446eac8 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4944,6 +4944,10 @@ 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; -- 2.20.1