mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-02 07:29:12 -04:00
9af846486d
Added a new ioctl to send discard commands or/and zero out to selected data area of a regular file for security reason. The way of handling range.len of F2FS_IOC_SEC_TRIM_FILE: 1. Added -1 value support for range.len to secure trim the whole blocks starting from range.start regardless of i_size. 2. If the end of the range passes over the end of file, it means until the end of file (i_size). 3. ignored the case of that range.len is zero to prevent the function from making end_addr zero and triggering different behaviour of the function. Signed-off-by: Daeho Jeong <daehojeong@google.com> Reviewed-by: Chao Yu <yuchao0@huawei.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.