Merge pull request !113 from pjscc/master

Merge pull request !110 from Hongjin Li/lihongjin/br_dev

Merge pull request !115 from Harylee/mmu

Signed-off-by: NHaryslee <lihao189@huawei.com>
Change-Id: I43744c028e95a732cebc35b0d153756c7dbc2aa3

Merge pull request !112 from Harylee/mmu

Signed-off-by: Npjscc <pangjiashuai@huawei.com>

新增NuttX.gni文件
Signed-off-by: NHongjin Li <lihongjin1@huawei.com>
Change-Id: I94bf2c9ec566a4cef21b8a785b55063a9ff46b7e

Signed-off-by: NHaryslee <lihao189@huawei.com>
Change-Id: Ie64b6c7aa59b8dedd14b420956305c43aa87e7a9

Merge pull request !102 from LeonChan/pg

close: I4JEZO
Signed-off-by: NLeon Chan <chenwei26@huawei.com>

Merge pull request !96 from Far/master

NFS的read/write/readpage/writepage接口在读写数据前会尝试更新当前节点的fhandle，更新时会取用父节点vnode的私有数据。
此时如果父节点已经被释放，则可能导致访问空指针或错误数据。因此需要将父节点fhandle保存在当前节点私有数据中。

Close #I4EZ0V
Signed-off-by: NFar <yesiyuan2@huawei.com>

Merge pull request !97 from wangchen/master

Merge pull request !98 from huangshan/fix-pgrp

Signed-off-by: Nhuangshan <huangshan9@huawei.com>
Change-Id: I3f4edbda4ca2dc0f6c6e38beffc28b4ed0b93fcd

【背景】增加内核epoll系统调用适配musl接口并增加测试用例

【修改方案】
1，删除musl仓的porting
2，内核实现epoll对应接口及注册系统调用
3，testsuit目录添加对应的用例

【影响】
对现有的产品编译不会有影响。

re #I4FXPT
Signed-off-by: Nwangchen <253227059@qq.com>
Change-Id: I2805efcff9cc7ad379a34ca18ef584aee69750c4

Merge pull request !95 from Far/fatfs

Merge pull request !94 from Far/master

在NFS服务端修改文件数据，客户端不感知。如果在此之前在客户端执行过内存映射，可能会导致数据不一致，引起错误。
因此，在打开前校验文件的fhandle和时间戳，若文件发生改变，则使文件的映射失效。

Close #I4D5J4
Signed-off-by: NFar <yesiyuan2@huawei.com>

优化包括：
1. 用VnodeLookupFullpath接口替代VnodeLookup;
2. 修改逻辑，减少strcpy和memset的调用

Close #I4E0CT
Signed-off-by: NFar <yesiyuan2@huawei.com>

Merge pull request !91 from Kiita/210927_mv

【背景】3516 taurus toybox mv 命令进行重名文件移动时出现失败的问题

【修改方案】
修改patch_cache.c文件，新增已创建目的地址节点的备份操作。
Signed-off-by: yansira <yansira@hotmail.com>
Change-Id: Ifd079d005520336ae98bea088aa7f4a3ca3329e9

Merge pull request !88 from Caoruihong/update_oat

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ib00f1634b3f3948c5469b79b0588ddb8de6d8119

Merge pull request !85 from LeonChan/codex

close: #I4ATUC
Signed-off-by: NLeon Chan <chenwei26@huawei.com>

Merge pull request !70 from LeonChan/pg

Merge pull request !83 from Zhaotianyu/0911refactor_makefile

1, change the owner of page to the vnode instead of filep
2, store the file path in struct Vnode

close: #I44TBS
Signed-off-by: NLeon Chan <chenwei26@huawei.com>

清理pipe的软连接，将构建脚本移至内核kernel/liteos_a/kernel/extended/pipes目录下

close: #I49MOO
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: If1543930f4bc85baa0888f4a417daba20450adee

Merge pull request !82 from 野生毛霉君/master

close: #149BPF
Signed-off-by: Nmucor <mucorwang@gmail.com>

Merge pull request !81 from MGY917/sync

Merge pull request !80 from bigA2021/0830usb

新增sync方法，该方法每次调用，会遍历系统内所有的mount点，调用各个文件系统注册
的sync方法，完成对所有已挂载文件系统的sync操作。

close #I480HV
Signed-off-by: NGuangyao Ma <guangyao.ma@outlook.com>
Change-Id: If3b82bbd67eec92223417c35a0e0fe7ba7d25eaa

Merge pull request !79 from jason_gitee/master

Signed-off-by: NbigA2021 <yanyin1@huawei.com>
Change-Id: I9c97187a7d21cb07d91003ae27a5d863d3ec9ad1

Signed-off-by: Njason_gitee <yangjie140@huawei.com>

Merge pull request !75 from Caoruihong/remove_dwc3

Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I84184ea450c4abf8d1123ef54d2527e4b1478364