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Helge Deller 5d698966fa parisc: Allow mmap(MAP_STACK) memory to automatically expand upwards
When userspace allocates memory with mmap() in order to be used for stack,
allow this memory region to automatically expand upwards up until the
current maximum process stack size.
The fault handler checks if the VM_GROWSUP bit is set in the vm_flags field
of a memory area before it allows it to expand.
This patch modifies the parisc specific code only.
A RFC for a generic patch to modify mmap() for all architectures was sent
to the mailing list but did not get enough Acks.

Reported-by: Camm Maguire <camm@maguirefamily.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org	# v5.10+
2024-09-16 23:01:43 +02:00
arch parisc: Allow mmap(MAP_STACK) memory to automatically expand upwards 2024-09-16 23:01:43 +02:00
block bio-integrity: don't restrict the size of integrity metadata 2024-09-04 07:17:00 -06:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto crypto: testmgr - generate power-of-2 lengths more often 2024-07-13 11:50:28 +12:00
Documentation Char/Misc driver fixes for 6.11-rc7 2024-09-08 10:13:39 -07:00
drivers parisc: pdc_stable: Constify struct kobj_type 2024-09-09 08:53:17 +02:00
fs parisc: Fix stack start for ADDR_NO_RANDOMIZE personality 2024-09-09 08:53:17 +02:00
include linux_kselftest-kunit-fixes-6.11-rc7-2 2024-09-06 17:48:24 -07:00
init Rust fixes for v6.11 2024-08-16 11:24:06 -07:00
io_uring io_uring/kbuf: return correct iovec count from classic buffer peek 2024-08-30 10:45:54 -06:00
ipc sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
kernel - Fix perf's AUX buffer serialization 2024-09-08 10:20:44 -07:00
lib linux_kselftest-kunit-fixes-6.11-rc7 2024-09-05 09:43:38 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm vfs-6.11-rc7.fixes 2024-09-04 09:33:57 -07:00
net ila: call nf_unregister_net_hooks() sooner 2024-09-05 14:57:12 -07:00
rust rust: macros: provide correct provenance when constructing THIS_MODULE 2024-09-02 09:14:28 +02:00
samples treewide: remove unnecessary <linux/version.h> inclusion 2024-08-12 18:36:44 +09:00
scripts scripts: fix gfp-translate after ___GFP_*_BITS conversion to an enum 2024-09-01 17:59:01 -07:00
security Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging 2024-09-01 09:18:48 +12:00
sound sound fixes for 6.11-rc7 2024-09-06 11:56:03 -07:00
tools RISC-V Fixes for 6.11-rc7 2024-09-06 13:00:59 -07:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt KVM: x86: Disallow read-only memslots for SEV-ES and SEV-SNP (and TDX) 2024-08-14 12:28:24 -04:00
.clang-format Docs: Move clang-format from process/ to dev-tools/ 2024-06-26 16:36:00 -06:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: add script and target to generate pacman package 2024-07-22 01:24:22 +09:00
.mailmap Rust fixes for v6.11 (2nd) 2024-09-05 16:35:57 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS tracing: Update of MAINTAINERS and CREDITS file 2024-07-18 14:08:42 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS drm fixes for 6.11-rc7 2024-09-06 11:15:40 -07:00
Makefile Linux 6.11-rc7 2024-09-08 14:50:28 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.