inet_dev_count++;/* Reference in_dev->dev */dev_hold(dev);#ifdefCONFIG_SYSCTLneigh_sysctl_register(dev, in_dev->arp_parms, NET_IPV4, NET_IPV4_NEIGH,"ipv4");#endifwrite_lock_bh(&inetdev_lock); dev->ip_ptr = in_dev;/* Account for reference dev->ip_ptr */in_dev_hold(in_dev...
Another thread might be able to acquire the write lock in the short span between the last read unlock and the write lock, which I think can cause concurrency issues if the read locked method expects only the method it calls to modify things and not someone else. read lock method is called...
spin_unlock(&inode->i_lock); iput(inode); wb_put(new_wb); kfree(isw); } static void inode_switch_wbs_rcu_fn(struct rcu_head *rcu_head) { struct inode_switch_wbs_context *isw = container_of(rcu_head, struct inode_switch_wbs_context, rcu_head); /* needs to grab bh-unsafe lo...
import java.io.Console; import java.util.Scanner; import java.util.concurrent.Semaphore; import java.util.concurrent.locks.Condition; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; /** * * How to find sum of digits in Java * * @author Javin Paul *...
spin_unlock_bh(&bdi_lock); wait = msecs_to_jiffies(dirty_writeback_interval * 10); - schedule_timeout(wait); + if (wait) + schedule_timeout(wait); + else + schedule(); try_to_freeze(); continue; } diff --git a/mm/page-writeback.c b/mm/page-writeback.c ...
Conventional lock-based synchronization suffers from... R Rajwar,M Herlihy,KK Lai - International Symposium on Computer Architecture 被引量: 866发表: 2005年 Making the fast case common and the uncommon case simple in unbounded transactional memory Hardware transactional memory has great potential to ...
Banks, Supplements, picked up a lock for front door, cream cheese, German bread bakery, etc. Post Office and drove past the burned building. So sad that a person destroyed people’s lives and killed pets over a personal disagreement that allowed her hurt emotions take over any bit of ...
spin_lock_bh(&wb->work_lock); if (test_bit(WB_registered, &wb->state)) mod_delayed_work(bdi_wq, &wb->dwork, 0); spin_unlock_bh(&wb->work_lock); } static inline bool mod_delayed_work(struct workqueue_struct *wq, struct delayed_work *dwork, ...
If we make the change I described above (looking for BH_New buffers outside the range passed), then zero length or partial shouldn't matter, but zero length instead of partial would be nicer imho just for the sake of reducing the total number of cases down to the entire range or zero...
write_unlock/write_unlock_irqrestore/write_unlock_irq/write_unlock_bh?之间的区别 、 在Linux内核中,我们有多个读写锁方法: void write_unlock(rwlock_t *lock);void write_unlock_irq(rwlock_t *lock); void write_unlock_bh(rwlock_t *lock); 浏览19提问于2020-12-15得票数 0 ...