linux-kernel - [PATCH 5.6 032/166] afs: Fix decoding of inline abort codes from version 1 status records

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Date:   Wed, 22 Apr 2020 11:55:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, David Howells <dhowells@...hat.com>
Subject: [PATCH 5.6 032/166] afs: Fix decoding of inline abort codes from version 1 status records

From: David Howells <dhowells@...hat.com>

commit 3e0d9892c0e7fa426ca6bf921cb4b543ca265714 upstream.

If we're decoding an AFSFetchStatus record and we see that the version is 1
and the abort code is set and we're expecting inline errors, then we store
the abort code and ignore the remaining status record (which is correct),
but we don't set the flag to say we got a valid abort code.

This can affect operation of YFS.RemoveFile2 when removing a file and the
operation of {,Y}FS.InlineBulkStatus when prospectively constructing or
updating of a set of inodes during a lookup.

Fix this to indicate the reception of a valid abort code.

Fixes: a38a75581e6e ("afs: Fix unlink to handle YFS.RemoveFile2 better")
Signed-off-by: David Howells <dhowells@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/afs/fsclient.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -88,6 +88,7 @@ static int xdr_decode_AFSFetchStatus(con

 	if (abort_code != 0 && inline_error) {
 		status->abort_code = abort_code;
+		scb->have_error = true;
 		goto good;
 	}