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Following process will trigger ubifs_err: 1. useradd -m freg (Under root) 2. cd /home/freg && mkdir mp (Under freg) 3. mount -t ubifs /dev/ubi0_0 /home/freg/mp (Under root) 4. cd /home/freg && echo 123 > mp/a (Under root) 5. cd mp && chown freg a && chgrp freg a && chmod 777 a (Under root) 6. chattr +i a (Under freg) UBIFS error (ubi0:0 pid 1723): ubifs_ioctl [ubifs]: can't modify inode 65 attributes chattr: Operation not permitted while setting flags on a This is not an UBIFS problem, it was caused by task priviliage checking on file operations. Remove error message printing from kernel just like other filesystems (eg. ext4), since we already have enough information from userspace tools. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.