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In some case initrd can be large. For example, it could be a netboot image loaded by u-root, that is kexec'ing into it. The maximum size of initrd is arbitrary set to 2G. Also, the limit is not very obvious because it is hidden behind a generic INT_MAX macro. Theoretically, we could make it LONG_MAX, but it is safer to keep it sane, and just increase it to 4G. Increase the size to 4G, and make it obvious by having a new macro that specifies the maximum file size supported by kexec_file_load() syscall: KEXEC_FILE_SIZE_MAX. Link: https://lkml.kernel.org/r/20220527025535.3953665-3-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Sasha Levin <sashal@kernel.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Greg Thelen <gthelen@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Baoquan He <bhe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
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.