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24 Commits

Author SHA1 Message Date
Guangyao Ma 27dca4d857 feat(vfs): vfs支持FD_CLOEXEC标记 
首先，POSIX规范规定文件描述符需要支持close-on-exec属性，修改前的vfs不支持close-on-exec，当exec系列函数执行时，进程所有的文件将会被关闭（0，1，2也重新被打开）。但是，系统有些时候是不能在exec时关闭全部文件的，例如在执行exec之前，就需要重定向进程的某些文件描述符时（使用dup2），就希望该文件不被关闭，继续保持重定向属性，shell执行进程并重定向其标准输出到文件，这是我们经常做的事情。

BREAKING CHANGE:
执行exec类函数后，进程拥有的文件描述符情况发生变化：修改前，默认关闭所有的进程文件描述符，0，1，2重新打开；修改后，除非文件描述符拥有FD_CLOEXEC标记，否则该描述符不会被关闭。

re #I3U81W

Change-Id: I54e841ac88e9835ec23e97de0cbc906c4e11f5a4
Signed-off-by: Guangyao Ma <guangyao.ma@outlook.com>
 2021-08-11 15:35:46 +08:00
wangchen 698756d1e6 fix: A核代码告警清零 
【背景】定期A核代码告警清零。

【修改方案】
根据工具扫描结果，对代码告警进行更改。

【影响】
对现有的产品编译不会有影响。

re #I4378T
Signed-off-by: wangchen <253227059@qq.com>
 2021-07-30 17:13:55 +08:00
mucor 3d1cf683f3 feat: add clear cache cmd to /proc/fs_cache 
write "clear pathcahe" to clear pathcaches and vnodes
write "clear pagecache" to clear pagecaches
write "clear all" to clear both pathcaches and pagechaches
the cache in use will not be cleared

close: #I3XLPH

Signed-off-by: mucor <mucorwang@gmail.com>
 2021-06-24 15:11:50 +08:00
mucor 231cb6be27 feat: add /proc/fs_cache to display cache info 
add /proc/fs_cache to display vnode, path cache, page cache.
also change some bad virable name

close: #I3WWBD

Signed-off-by: mucor <mucorwang@gmail.com>
 2021-06-22 14:53:17 +08:00
SimonLi 2f3d7efc24 回退 'Pull Request !342 : 增加/proc/fs_cache来显示文件系统缓存维测信息' 2021-06-21 21:33:52 +08:00
mucor 53c6d96c6f feat: add /proc/fs_cache to display cache info 
add /proc/fs_cache to display vnode, path cache, page cache.
also change some bad virable name

close: #I3WESD

Signed-off-by: mucor <mucorwang@gmail.com>
 2021-06-21 16:11:06 +08:00
mucor 73a777777e fix: remove redundant headfile 
1.remove redundant headfile in kernel, such as:
  compiler.h;debug.h;automount.h;inode.h;syslog.h;net.h;
2.split fs.h to file.h and driver.h
3.move vnode.h and path_cache.h to vfs/include
4.remove redundant interface and defines

close: #I3RTNR

Signed-off-by: mucor <mucorwang@gmail.com>
 2021-06-19 17:32:47 +08:00
chenwei 101a55d119 fix: codex 
1，VFS代码中不修改参数增加const修饰
2，fs_file_mapping.c: 增加安全函数的判空
3，path_cache.c: sizeof改为使用类型
4，fs_syscall.c: 对NULL解引用
5，VnodeLookup：冗余的判空，及不正确的判空

close: I3UMWD
Signed-off-by: yansira <yansira@hotmail.com>
 2021-06-07 22:45:40 +08:00
chenwei 4f514a16af fix: the total used vnode number not increased after unlink a file under 
/dev/

fix #I3TS1Y
Signed-off-by: yansira <yansira@hotmail.com>
 2021-06-04 16:49:04 +08:00
mucor 04bcb11c3c fix:add vnode destory for unregister dev node 
Change-Id: I2205bbf42e7c2339f81443ace6924b12f4fa1c09
 2021-04-30 15:31:03 +08:00
Far 5f6656cb36 fix: VnodeInUseIter and VnodeFreeAll used to be recursive 
Function VnodeInUseIter and VnodeFreeAll used to be recursive.
Now we traverse the current in-use vnode list to find the vnode in
1 filesystem

Close #I3NN3U
 2021-04-28 14:35:29 +08:00
openharmony_ci 89ed41a016 !173 [Desc] fix bug: kernel crashed after rmdir the umounted folder 
Merge pull request !173 from LeonChan/lc-master
 2021-04-21 19:31:12 +08:00
chenwei ac0d083b1c fix: kernel crashed after rmdir the umounted folder 
Close: I3NGBT
Change-Id: I70130c42061e51f5978b48befea66a5925386343
 2021-04-21 17:31:28 +08:00
openharmony_ci 5605063950 !163 [Desc] add debug code to fix bug: kernel crashed after rmdir the umounted folder 3 
Merge pull request !163 from LeonChan/lc-master
 2021-04-20 19:09:47 +08:00
chenwei c6e921241b fix: kernel crashed when delete a umounted folder 
Close: I3MZZ6
Change-Id: Iab3919a2eebb44c82531a7fa7a2f688ec4bcc5a0
 2021-04-20 16:10:24 +08:00
Far 902a11de9a fix: lookup new vnode may cause parent vnode freeing 
Close #I3MYP4

Change-Id: I533f4bacaf7e6dd500f5ac3ce4f5343b3b885988
 2021-04-20 11:43:14 +08:00
Caoruihong 7e73c929a2 remove __cplusplus guards in .c files 
Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f
 2021-04-19 18:28:25 +08:00
openharmony_ci 75a85e4483 !151 [Desc] add debug code to fix bug: kernel crashed after rmdir the umounted folder, parentVnode->data null 
Merge pull request !151 from LeonChan/lc-master
 2021-04-19 11:00:57 +08:00
chenwei 296274b60f add debug code to fix bug: kernel crashed after rmdir the umounted folder, parent->data null 
Change-Id: I44981eb9475feb4604ffe91244b4dff00f7d1548
 2021-04-17 11:44:03 +08:00
openharmony_ci af2b0ac75b !144 用于检测umount栈溢出的调测功能 
Merge pull request !144 from ysy4tc3/dev
 2021-04-16 17:11:28 +08:00
chenwei a7c5abf64c add debug code to fix bug: kernel crashed after rmdir the umounted folder 
Change-Id: Ia956fd09f1bd734cd26ab631359c1e2131fe1e37
 2021-04-16 11:30:04 +08:00
Far 7e0e46828b Bugfix: add vnode iteration debug feature for a bug 
buginfo: when try to umount a nfs node, it may casue stack overflow.

Change-Id: I7d96f74a770607c990ca5f51cb92fb2843a08d12
 2021-04-16 11:00:38 +08:00
mucor 1884fa0523 fix readdir, rename 
Change-Id: Ic443742e125915f0e5332a338dedea5c40348928
 2021-03-24 18:15:06 +08:00
wangchenyang d970750808 Description:vfs refactoring 
Feature or Bugfix:Feature
Binary Source:Huawei
PrivateCode(Yes/No):Yes

Change-Id: I175d2648bc6f9078c34de2c0a5c93fda10b86c47
ChangeID:13306388
 2021-03-19 13:22:46 +08:00