SUNRPC: convert RPC_TASK_* constants to enum

JIRA: https://issues.redhat.com/browse/RHEL-108616

commit 0b108e8
Author: Stephen Brennan <[email protected]>
Date:   Mon Aug 19 08:58:59 2024 -0700

    SUNRPC: convert RPC_TASK_* constants to enum

    The RPC_TASK_* constants are defined as macros, which means that most
    kernel builds will not contain their definitions in the debuginfo.
    However, it's quite useful for debuggers to be able to view the task
    state constant and interpret it correctly. Conversion to an enum will
    ensure the constants are present in debuginfo and can be interpreted by
    debuggers without needing to hard-code them and track their changes.

    Signed-off-by: Stephen Brennan <[email protected]>
    Signed-off-by: Anna Schumaker <[email protected]>

Signed-off-by: Benjamin Coddington <[email protected]>

Author: bcodding-rh

include/linux/sunrpc/sched.h

@@ -151,13 +151,15 @@ struct rpc_task_setup {
 #define RPC_WAS_SENT(t)		((t)->tk_flags & RPC_TASK_SENT)
 #define RPC_IS_MOVEABLE(t)	((t)->tk_flags & RPC_TASK_MOVEABLE)
 
-#define RPC_TASK_RUNNING	0
-#define RPC_TASK_QUEUED		1
-#define RPC_TASK_ACTIVE		2
-#define RPC_TASK_NEED_XMIT	3
-#define RPC_TASK_NEED_RECV	4
-#define RPC_TASK_MSG_PIN_WAIT	5
-#define RPC_TASK_SIGNALLED	6
+enum {
+	RPC_TASK_RUNNING,
+	RPC_TASK_QUEUED,
+	RPC_TASK_ACTIVE,
+	RPC_TASK_NEED_XMIT,
+	RPC_TASK_NEED_RECV,
+	RPC_TASK_MSG_PIN_WAIT,
+	RPC_TASK_SIGNALLED,
+};
 
 #define rpc_test_and_set_running(t) \
 				test_and_set_bit(RPC_TASK_RUNNING, &(t)->tk_runstate)