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a28d9aa1a2
We should update the ~S_IRWXUGO part of inode->i_mode in __setattr_copy, because posix_acl_update_mode updates mode based on inode->i_mode, which finally overwrites the ~S_IRWXUGO part of i_acl_mode with old i_mode. Testcase to reproduce this bug: 0. adduser abc 1. mkfs.f2fs /dev/sdd 2. mount -t f2fs /dev/sdd /mnt/f2fs 3. mkdir /mnt/f2fs/test 4. setfacl -m u🔤r /mnt/f2fs/test 5. chmod +s /mnt/f2fs/test Signed-off-by: Weichao Guo <guoweichao@oppo.com> Signed-off-by: Bin Shu <shubin@oppo.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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.