cno = nilfs_last_cno(nilfs);if(sb->s_flags & MS_RDONLY) {if(nilfs_test_opt(sbi, SNAPSHOT)) {down_read(&nilfs->ns_segctor_sem); err = nilfs_cpfile_is_snapshot(nilfs->ns_cpfile, sbi->s_snapshot_cno); up_read(&nilfs->ns_segctor_sem);if(err <0) {if(err == -ENOENT) ...
staticssize_tfoo_show(struct kobject *kobj, struct kobj_attribute *attr,char*buf){size_tcount;/*down_read_trylockreturns zero on failure */if(!down_read_trylock(&rw_sem))return-ERESTARTSYS; count =sprintf(buf,"%s\n", foo_kbuff); up_read(&rw_sem);returncount; } 开发者ID:rahulraghu...
got preempted out by a RT task which then spins in the writer slowpath as owner remains NULL leading to live lock. One easy way to fix this problem is to disable preemption at all the down_read*() and up_read() code paths as implemented in this patch. Fixes:91d2a81("locking/rwsem...
下读(read down):用户级别大于文件级别的读操作;上写(Write up):用户级别小于文件级别的写操作; 下写(Write dow… yanlong130.blog.163.com|基于29个网页 2. 向下读 主体对客体的访问 主要有以下 4 种方式[3]: (1)向下读(read down) 主体的安全级别高于客体信息的安全级别时允许读操 … ...
setup_file_encryption_key Find the master key, then set up the inode's actual encryption key.* If the master key is found in the filesystem-level keyring, then the* corresponding 'struct key' is returned in *master_key_ret with* ->mk_secret_sem read-locked find_and_lock_process_key...
UpDownBase.cs Gets or sets a value indicating whether the text can be changed by the use of the up or down buttons only. C# publicboolReadOnly {get;set; } Property Value Boolean trueif the text can be changed by the use of the up or down buttons only; otherwise,false. The default...
写- write 坐下 - sit down 听 - listen 坐 - sit 读 - read 起立 - stand up 说 - say 站 - stand 指 - point 女士 - Ms 是(第一人称单数现在时)- am 是(第二人称单数现在时)- are 书 - book 好的 - good 打开 - open 天 - day 是(第三人称单数现在时)- is 一个 - a/an 有 ...
题目Read and fill in the blanks.A. up B. to C. down D. open1. Sit ___, please.2. Stand ___, Li Tao.3. Point ___ the window.4. Please ___ the door! 相关知识点: 试题来源: 解析 C A B D 略 反馈 收藏
Markdown - you can mark up titles, lists, tables, etc., in a much cleaner, readable and accurate way if you do it with HTML. - fefong/markdown_readme
答案分别为: 1. stand up - sit down 2. sit - stand 3. sit down - stand up 4. open - close 5. book - close 6. close - open 7. point - stop pointing 8. say - be quiet 9. read - stop reading 10. listen - stop listening 11. write - stop writing 反馈 收藏 ...