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Arnd Bergmann 967747bbc0 uaccess: remove CONFIG_SET_FS
There are no remaining callers of set_fs(), so CONFIG_SET_FS
can be removed globally, along with the thread_info field and
any references to it.

This turns access_ok() into a cheaper check against TASK_SIZE_MAX.

As CONFIG_SET_FS is now gone, drop all remaining references to
set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel().

Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes
Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic]
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-25 09:36:06 +01:00
arch uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
block
certs
crypto
Documentation
drivers uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
fs uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
include uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
init
ipc
kernel uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
lib uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
LICENSES
mm uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
net uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
samples
scripts
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usr
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.cocciconfig
.get_maintainer.ignore
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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.