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Nico Pache abdbd5f3e8 selftests: mm: fix map_hugetlb failure on 64K page size systems 
[ Upstream commit 91b80cc5b3 ]

On systems with 64k page size and 512M huge page sizes, the allocation and
test succeeds but errors out at the munmap.  As the comment states, munmap
will failure if its not HUGEPAGE aligned.  This is due to the length of
the mapping being 1/2 the size of the hugepage causing the munmap to not
be hugepage aligned.  Fix this by making the mapping length the full
hugepage if the hugepage is larger than the length of the mapping.

Link: https://lkml.kernel.org/r/20240119131429.172448-1-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-15 10:48:16 -04:00
arch s390: use the correct count for __iowrite64_copy() 2024-03-01 13:06:11 +01:00
block blk-mq: fix IO hang from sbitmap wakeup race 2024-02-23 08:12:51 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-25 11:49:16 +02:00
crypto crypto: api - Disallow identical driver names 2024-02-23 08:12:39 +01:00
Documentation net: sysfs: Fix /sys/class/net/<iface> path for statistics 2024-02-23 08:12:55 +01:00
drivers geneve: make sure to pull inner header in geneve_rx() 2024-03-15 10:48:14 -04:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs btrfs: ref-verify: free ref cache before clearing mount opt 2024-03-15 10:48:16 -04:00
include net: move definition of pcpu_lstats to header file 2024-03-15 10:48:14 -04:00
init init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init() 2023-08-08 19:49:18 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:18:35 +01:00
kernel sched/rt: Disallow writing invalid values to sched_rt_period_us 2024-03-01 13:06:08 +01:00
lib kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-11-08 11:22:17 +01:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mm: memcontrol: switch to rcu protection in drain_all_stock() 2024-03-01 13:06:10 +01:00
net netrom: Fix data-races around sysctl_net_busy_read 2024-03-15 10:48:16 -04:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-08-11 11:45:03 +02:00
scripts scripts/bpf: Fix xdp_md forward declaration typo 2024-03-01 13:06:11 +01:00
security lsm: new security_file_ioctl_compat() hook 2024-02-23 08:12:58 +01:00
sound ALSA: Drop leftover snd-rtctimer stuff from Makefile 2024-03-06 14:35:23 +00:00
tools selftests: mm: fix map_hugetlb failure on 64K page size systems 2024-03-15 10:48:16 -04:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler 2024-03-01 13:06:11 +01:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS MAINTAINERS: r8169: Update path to the driver 2023-11-08 11:22:19 +01:00
Makefile Linux 4.19.309 2024-03-06 14:35:23 +00:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.