linux-kernel - [PATCH v2 12/40] afs: Handle the VIO and UAEIO aborts explicitly

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Message-ID: <20231213135003.367397-13-dhowells@redhat.com>
Date:   Wed, 13 Dec 2023 13:49:34 +0000
From:   David Howells <dhowells@...hat.com>
To:     Marc Dionne <marc.dionne@...istor.com>
Cc:     David Howells <dhowells@...hat.com>, linux-afs@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 12/40] afs: Handle the VIO and UAEIO aborts explicitly

When processing the result of a call, handle the VIO and UAEIO abort
specifically rather than leaving it to a default case.  Rather than
erroring out unconditionally, see if there's another server if the volume
has more than one server available, otherwise return -EREMOTEIO.

Signed-off-by: David Howells <dhowells@...hat.com>
cc: Marc Dionne <marc.dionne@...istor.com>
cc: linux-afs@...ts.infradead.org
---

Notes:
    Changes
    =======
    ver #2)
     - Treat UAEIO as VIO too.

 fs/afs/rotate.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/afs/rotate.c b/fs/afs/rotate.c
index 13ec8ffa911a..0829933f4d9a 100644
--- a/fs/afs/rotate.c
+++ b/fs/afs/rotate.c
@@ -330,6 +330,13 @@ bool afs_select_fileserver(struct afs_operation *op)
 
 			goto restart_from_beginning;
 
+		case UAEIO:
+		case VIO:
+			op->error = -EREMOTEIO;
+			if (op->volume->type != AFSVL_RWVOL)
+				goto next_server;
+			goto failed;
+
 		case VDISKFULL:
 		case UAENOSPC:
 			/* The partition is full.  Only applies to RWVOLs.