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authorMark Rutland <mark.rutland@arm.com>2018-06-21 13:13:04 +0100
committerIngo Molnar <mingo@kernel.org>2018-06-21 14:22:32 +0200
commitbfc18e389c7a09fbbbed6bf4032396685b14246e (patch)
treed44db2f27bb236237e806cfe36a2817edc37dbcd /net/rxrpc
parent356c6fe7d80c678cf77aede0f95291dfd5ed2ef2 (diff)
downloadlinux-stericsson-bfc18e389c7a09fbbbed6bf4032396685b14246e.tar.gz
atomics/treewide: Rename __atomic_add_unless() => atomic_fetch_add_unless()
While __atomic_add_unless() was originally intended as a building-block for atomic_add_unless(), it's now used in a number of places around the kernel. It's the only common atomic operation named __atomic*(), rather than atomic_*(), and for consistency it would be better named atomic_fetch_add_unless(). This lack of consistency is slightly confusing, and gets in the way of scripting atomics. Given that, let's clean things up and promote it to an official part of the atomics API, in the form of atomic_fetch_add_unless(). This patch converts definitions and invocations over to the new name, including the instrumented version, using the following script: ---- git grep -w __atomic_add_unless | while read line; do sed -i '{s/\<__atomic_add_unless\>/atomic_fetch_add_unless/}' "${line%%:*}"; done git grep -w __arch_atomic_add_unless | while read line; do sed -i '{s/\<__arch_atomic_add_unless\>/arch_atomic_fetch_add_unless/}' "${line%%:*}"; done ---- Note that we do not have atomic{64,_long}_fetch_add_unless(), which will be introduced by later patches. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Palmer Dabbelt <palmer@sifive.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/lkml/20180621121321.4761-2-mark.rutland@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/rxrpc')
-rw-r--r--net/rxrpc/call_object.c2
-rw-r--r--net/rxrpc/conn_object.c4
-rw-r--r--net/rxrpc/local_object.c2
-rw-r--r--net/rxrpc/peer_object.c2
4 files changed, 5 insertions, 5 deletions
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index f6734d8cb01a..9486293fef5c 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -415,7 +415,7 @@ void rxrpc_incoming_call(struct rxrpc_sock *rx,
bool rxrpc_queue_call(struct rxrpc_call *call)
{
const void *here = __builtin_return_address(0);
- int n = __atomic_add_unless(&call->usage, 1, 0);
+ int n = atomic_fetch_add_unless(&call->usage, 1, 0);
if (n == 0)
return false;
if (rxrpc_queue_work(&call->processor))
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index 4c77a78a252a..77440a356b14 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -266,7 +266,7 @@ void rxrpc_kill_connection(struct rxrpc_connection *conn)
bool rxrpc_queue_conn(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
- int n = __atomic_add_unless(&conn->usage, 1, 0);
+ int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
if (n == 0)
return false;
if (rxrpc_queue_work(&conn->processor))
@@ -309,7 +309,7 @@ rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
const void *here = __builtin_return_address(0);
if (conn) {
- int n = __atomic_add_unless(&conn->usage, 1, 0);
+ int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
if (n > 0)
trace_rxrpc_conn(conn, rxrpc_conn_got, n + 1, here);
else
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index b493e6b62740..777c3ed4cfc0 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -305,7 +305,7 @@ struct rxrpc_local *rxrpc_get_local_maybe(struct rxrpc_local *local)
const void *here = __builtin_return_address(0);
if (local) {
- int n = __atomic_add_unless(&local->usage, 1, 0);
+ int n = atomic_fetch_add_unless(&local->usage, 1, 0);
if (n > 0)
trace_rxrpc_local(local, rxrpc_local_got, n + 1, here);
else
diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 1b7e8107b3ae..1cf3b408017a 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -406,7 +406,7 @@ struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer)
const void *here = __builtin_return_address(0);
if (peer) {
- int n = __atomic_add_unless(&peer->usage, 1, 0);
+ int n = atomic_fetch_add_unless(&peer->usage, 1, 0);
if (n > 0)
trace_rxrpc_peer(peer, rxrpc_peer_got, n + 1, here);
else