afs: Fix the fallback handling for the YFS.RemoveFile2 RPC call

[ Upstream commit e30458d690 ]

Fix a pair of bugs in the fallback handling for the YFS.RemoveFile2 RPC
call:

 (1) Fix the abort code check to also look for RXGEN_OPCODE.  The lack of
     this masks the second bug.

 (2) call->server is now not used for ordinary filesystem RPC calls that
     have an operation descriptor.  Fix to use call->op->server instead.

Fixes: e49c7b2f6d ("afs: Build an abstraction around an "operation" concept")
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/109541.1736865963@warthog.procyon.org.uk
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Howells 2025-01-14 14:46:03 +00:00 committed by Greg Kroah-Hartman
parent 1e8c151fb2
commit 404ec81d61

View File

@ -666,8 +666,9 @@ static int yfs_deliver_fs_remove_file2(struct afs_call *call)
static void yfs_done_fs_remove_file2(struct afs_call *call)
{
if (call->error == -ECONNABORTED &&
call->abort_code == RX_INVALID_OPERATION) {
set_bit(AFS_SERVER_FL_NO_RM2, &call->server->flags);
(call->abort_code == RX_INVALID_OPERATION ||
call->abort_code == RXGEN_OPCODE)) {
set_bit(AFS_SERVER_FL_NO_RM2, &call->op->server->flags);
call->op->flags |= AFS_OPERATION_DOWNGRADE;
}
}