linux-kernel - [PATCH v3 3/3] drbd: Remove useless variable in struct drbd

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Message-ID: <20211210120631.2578505-4-lijinlin3@huawei.com>
Date:   Fri, 10 Dec 2021 20:06:31 +0800
From:   Li Jinlin <lijinlin3@...wei.com>
To:     <song@...nel.org>, <philipp.reisner@...bit.com>,
        <lars.ellenberg@...bit.com>, <axboe@...nel.dk>, <hare@...e.de>,
        <jack@...e.cz>, <ming.lei@...hat.com>, <tj@...nel.org>,
        <mcgrof@...nel.org>
CC:     <linux-raid@...r.kernel.org>, <linux-block@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linfeilong@...wei.com>
Subject: [PATCH v3 3/3] drbd: Remove useless variable in struct drbd_device

rs_last_sect_ev is unused since added in 1d7734a0df02, so just remove it.

Signed-off-by: Li Jinlin <lijinlin3@...wei.com>
---
 drivers/block/drbd/drbd_int.h    | 1 -
 drivers/block/drbd/drbd_main.c   | 1 -
 drivers/block/drbd/drbd_state.c  | 1 -
 drivers/block/drbd/drbd_worker.c | 1 -
 4 files changed, 4 deletions(-)

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 1b71adc07e83..a163141aff1b 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -955,7 +955,6 @@ struct drbd_device {
 	char congestion_reason;  /* Why we where congested... */
 	atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
 	atomic64_t rs_sect_ev; /* for submitted resync data rate, both */
-	int rs_last_sect_ev; /* counter to compare with */
 	s64 rs_last_events;  /* counter of read or write "events" (unit sectors)
 			      * on the lower level device when we last looked. */
 	int c_sync_rate; /* current resync rate after syncer throttle magic */
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index ea057bd60541..f1fa03c69809 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2046,7 +2046,6 @@ void drbd_device_cleanup(struct drbd_device *device)
 	device->rs_total     =
 	device->rs_failed    = 0;
 	device->rs_last_events = 0;
-	device->rs_last_sect_ev = 0;
 	for (i = 0; i < DRBD_SYNC_MARKS; i++) {
 		device->rs_mark_left[i] = 0;
 		device->rs_mark_time[i] = 0;
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index b8a27818ab3f..4a6c69133c62 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -1389,7 +1389,6 @@ _drbd_set_state(struct drbd_device *device, union drbd_state ns,
 
 		set_ov_position(device, ns.conn);
 		device->rs_start = now;
-		device->rs_last_sect_ev = 0;
 		device->ov_last_oos_size = 0;
 		device->ov_last_oos_start = 0;
 
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index a4edd0a9c875..45ae4abd355a 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1829,7 +1829,6 @@ void drbd_start_resync(struct drbd_device *device, enum drbd_conns side)
 		device->rs_failed    = 0;
 		device->rs_paused    = 0;
 		device->rs_same_csum = 0;
-		device->rs_last_sect_ev = 0;
 		device->rs_total     = tw;
 		device->rs_start     = now;
 		for (i = 0; i < DRBD_SYNC_MARKS; i++) {
-- 
2.27.0