From 71dd5d651be7c99c401ad642e9f3cba88b956bce Mon Sep 17 00:00:00 2001 From: Joseph Qi Date: Fri, 7 Oct 2022 20:48:44 +0800 Subject: ocfs2/cluster: use bitmap API instead of hand-writing it Use bitmap_zero/bitmap_copy/bitmap_equal directly for bitmap operations. Link: https://lkml.kernel.org/r/20221007124846.186453-1-joseph.qi@linux.alibaba.com Signed-off-by: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Changwei Ge Cc: Gang He Cc: Jun Piao Signed-off-by: Andrew Morton --- fs/ocfs2/cluster/heartbeat.c | 20 ++++++++++---------- fs/ocfs2/cluster/nodemanager.c | 2 +- 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index b13d344d40b6..8fe6031f60e3 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -335,7 +335,7 @@ static void o2hb_arm_timeout(struct o2hb_region *reg) /* negotiate timeout must be less than write timeout. */ schedule_delayed_work(®->hr_nego_timeout_work, msecs_to_jiffies(O2HB_NEGO_TIMEOUT_MS)); - memset(reg->hr_nego_node_bitmap, 0, sizeof(reg->hr_nego_node_bitmap)); + bitmap_zero(reg->hr_nego_node_bitmap, O2NM_MAX_NODES); } static void o2hb_disarm_timeout(struct o2hb_region *reg) @@ -386,8 +386,8 @@ static void o2hb_nego_timeout(struct work_struct *work) config_item_name(®->hr_item), reg->hr_bdev); set_bit(master_node, reg->hr_nego_node_bitmap); } - if (memcmp(reg->hr_nego_node_bitmap, live_node_bitmap, - sizeof(reg->hr_nego_node_bitmap))) { + if (!bitmap_equal(reg->hr_nego_node_bitmap, live_node_bitmap, + O2NM_MAX_NODES)) { /* check negotiate bitmap every second to do timeout * approve decision. */ @@ -856,8 +856,8 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg) * live nodes heartbeat on it. In other words, the region has been * added to all nodes. */ - if (memcmp(reg->hr_live_node_bitmap, o2hb_live_node_bitmap, - sizeof(o2hb_live_node_bitmap))) + if (!bitmap_equal(reg->hr_live_node_bitmap, o2hb_live_node_bitmap, + O2NM_MAX_NODES)) goto unlock; printk(KERN_NOTICE "o2hb: Region %s (%pg) is now a quorum device\n", @@ -1437,11 +1437,11 @@ void o2hb_init(void) for (i = 0; i < ARRAY_SIZE(o2hb_live_slots); i++) INIT_LIST_HEAD(&o2hb_live_slots[i]); - memset(o2hb_live_node_bitmap, 0, sizeof(o2hb_live_node_bitmap)); - memset(o2hb_region_bitmap, 0, sizeof(o2hb_region_bitmap)); - memset(o2hb_live_region_bitmap, 0, sizeof(o2hb_live_region_bitmap)); - memset(o2hb_quorum_region_bitmap, 0, sizeof(o2hb_quorum_region_bitmap)); - memset(o2hb_failed_region_bitmap, 0, sizeof(o2hb_failed_region_bitmap)); + bitmap_zero(o2hb_live_node_bitmap, O2NM_MAX_NODES); + bitmap_zero(o2hb_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_live_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_quorum_region_bitmap, O2NM_MAX_REGIONS); + bitmap_zero(o2hb_failed_region_bitmap, O2NM_MAX_REGIONS); o2hb_dependent_users = 0; diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c index 27fee68f860a..2f61d39e4e50 100644 --- a/fs/ocfs2/cluster/nodemanager.c +++ b/fs/ocfs2/cluster/nodemanager.c @@ -54,7 +54,7 @@ int o2nm_configured_node_map(unsigned long *map, unsigned bytes) return -EINVAL; read_lock(&cluster->cl_nodes_lock); - memcpy(map, cluster->cl_nodes_bitmap, sizeof(cluster->cl_nodes_bitmap)); + bitmap_copy(map, cluster->cl_nodes_bitmap, O2NM_MAX_NODES); read_unlock(&cluster->cl_nodes_lock); return 0; -- cgit v1.2.3