Zhaolong Zhang f69fa4c81b mips: fix HUGETLB function without THP enabled
ltp test futex_wake04 without THP enabled leads to below bt:
  [<ffffffff80a03728>] BUG+0x0/0x8
  [<ffffffff80a0624c>] internal_get_user_pages_fast+0x81c/0x820
  [<ffffffff8093ac18>] get_futex_key+0xa0/0x480
  [<ffffffff8093b074>] futex_wait_setup+0x7c/0x1a8
  [<ffffffff8093b2c0>] futex_wait+0x120/0x228
  [<ffffffff8093dbe8>] do_futex+0x140/0xbd8
  [<ffffffff8093e78c>] sys_futex+0x10c/0x1c0
  [<ffffffff808703d0>] syscall_common+0x34/0x58

Move pmd_write() and pmd_page() from TRANSPARENT_HUGEPAGE scope to
MIPS_HUGE_TLB_SUPPORT scope, because both THP and HUGETLB will need
them.

Signed-off-by: Zhaolong Zhang <zhangzl2013@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-11-02 11:15:09 +01:00
2021-09-12 16:28:37 -07:00

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.
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