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btrfs: send: in case of IO error log it

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commit 2e7be9db12 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>
This commit is contained in:
Dāvis Mosāns 2022-02-05 20:48:23 +02:00 • committed by Greg Kroah-Hartman
commit 0b17d4b51c
1 changed files with 4 additions and 0 deletions
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4
fs/btrfs/send.c
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@ -5006,6 +5006,10 @@ static int put_file_data(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;