From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) by mail19.linbit.com (LINBIT Mail Daemon) with ESMTP id 0962C420962 for ; Wed, 15 Feb 2023 17:32:08 +0100 (CET) Received: by mail-wr1-f51.google.com with SMTP id o15so16448024wrc.9 for ; Wed, 15 Feb 2023 08:32:08 -0800 (PST) From: =?UTF-8?q?Christoph=20B=C3=B6hmwalder?= To: Jens Axboe Date: Wed, 15 Feb 2023 17:31:58 +0100 Message-Id: <20230215163204.2856631-2-christoph.boehmwalder@linbit.com> In-Reply-To: <20230215163204.2856631-1-christoph.boehmwalder@linbit.com> References: <20230215163204.2856631-1-christoph.boehmwalder@linbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Andreas Gruenbacher , Philipp Reisner , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Lars Ellenberg , drbd-dev@lists.linbit.com Subject: [Drbd-dev] [PATCH 1/7] drbd: Rip out the ERR_IF_CNT_IS_NEGATIVE macro List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Andreas Gruenbacher Signed-off-by: Andreas Gruenbacher Signed-off-by: Christoph Böhmwalder --- drivers/block/drbd/drbd_int.h | 37 ++++++++++++++--------------------- 1 file changed, 15 insertions(+), 22 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index d89b7d03d4c8..772023ace749 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1918,18 +1918,14 @@ static inline void inc_ap_pending(struct drbd_device *device) atomic_inc(&device->ap_pending_cnt); } -#define ERR_IF_CNT_IS_NEGATIVE(which, func, line) \ - if (atomic_read(&device->which) < 0) \ - drbd_err(device, "in %s:%d: " #which " = %d < 0 !\n", \ - func, line, \ - atomic_read(&device->which)) - -#define dec_ap_pending(device) _dec_ap_pending(device, __func__, __LINE__) -static inline void _dec_ap_pending(struct drbd_device *device, const char *func, int line) +#define dec_ap_pending(device) ((void)expect((device), __dec_ap_pending(device) >= 0)) +static inline int __dec_ap_pending(struct drbd_device *device) { - if (atomic_dec_and_test(&device->ap_pending_cnt)) + int ap_pending_cnt = atomic_dec_return(&device->ap_pending_cnt); + + if (ap_pending_cnt == 0) wake_up(&device->misc_wait); - ERR_IF_CNT_IS_NEGATIVE(ap_pending_cnt, func, line); + return ap_pending_cnt; } /* counts how many resync-related answers we still expect from the peer @@ -1943,11 +1939,10 @@ static inline void inc_rs_pending(struct drbd_device *device) atomic_inc(&device->rs_pending_cnt); } -#define dec_rs_pending(device) _dec_rs_pending(device, __func__, __LINE__) -static inline void _dec_rs_pending(struct drbd_device *device, const char *func, int line) +#define dec_rs_pending(device) ((void)expect((device), __dec_rs_pending(device) >= 0)) +static inline int __dec_rs_pending(struct drbd_device *device) { - atomic_dec(&device->rs_pending_cnt); - ERR_IF_CNT_IS_NEGATIVE(rs_pending_cnt, func, line); + return atomic_dec_return(&device->rs_pending_cnt); } /* counts how many answers we still need to send to the peer. @@ -1964,18 +1959,16 @@ static inline void inc_unacked(struct drbd_device *device) atomic_inc(&device->unacked_cnt); } -#define dec_unacked(device) _dec_unacked(device, __func__, __LINE__) -static inline void _dec_unacked(struct drbd_device *device, const char *func, int line) +#define dec_unacked(device) ((void)expect(device, __dec_unacked(device) >= 0)) +static inline int __dec_unacked(struct drbd_device *device) { - atomic_dec(&device->unacked_cnt); - ERR_IF_CNT_IS_NEGATIVE(unacked_cnt, func, line); + return atomic_dec_return(&device->unacked_cnt); } -#define sub_unacked(device, n) _sub_unacked(device, n, __func__, __LINE__) -static inline void _sub_unacked(struct drbd_device *device, int n, const char *func, int line) +#define sub_unacked(device, n) ((void)expect(device, __sub_unacked(device) >= 0)) +static inline int __sub_unacked(struct drbd_device *device, int n) { - atomic_sub(n, &device->unacked_cnt); - ERR_IF_CNT_IS_NEGATIVE(unacked_cnt, func, line); + return atomic_sub_return(n, &device->unacked_cnt); } static inline bool is_sync_target_state(enum drbd_conns connection_state) -- 2.39.1