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Kalesh Singh e05986ee7a mm/mremap.c: fix extent calculation When `next < old_addr`, `next - old_addr` arithmetic underflows causing `extent` to be incorrect. Make `extent` the smaller of `next - old_addr` or `old_end - old_addr`. Link: https://lkml.kernel.org/r/20201219170433.2418867-1-kaleshsingh@google.com Fixes: `c49dd34018` ("mm: speedup mremap on 1GB or larger regions") Signed-off-by: Kalesh Singh <kaleshsingh@google.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Helge Deller <deller@gmx.de> Cc: Kalesh Singh <kaleshsingh@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-12-29 15:36:49 -08:00
Documentation	A small set of late-arriving, small documentation fixes.	2020-12-24 14:20:33 -08:00
LICENSES	…
arch	mm: memmap defer init doesn't work as expected	2020-12-29 15:36:49 -08:00
block	…
certs	…
crypto	…
drivers	Revert WQ_SYSFS change that broke reencryption (and all other	2020-12-28 13:32:16 -08:00
fs	proc mountinfo: make splice available again	2020-12-27 12:00:36 -08:00
include	mm: memmap defer init doesn't work as expected	2020-12-29 15:36:49 -08:00
init	…
ipc	…
kernel	Merge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2020-12-28 11:23:02 -08:00
lib	…
mm	mm/mremap.c: fix extent calculation	2020-12-29 15:36:49 -08:00
net	…
samples	…
scripts	checkpatch: prefer strscpy to strlcpy	2020-12-29 15:36:49 -08:00
security	Provide a fix for the incorrect handling of privilege	2020-12-24 14:08:43 -08:00
sound	…
tools	selftests/vm: fix building protection keys test	2020-12-29 15:36:49 -08:00
usr	…
virt	…
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	…
COPYING	…
CREDITS	…
Kbuild	…
Kconfig	…
MAINTAINERS	Misc fixes/updates:	2020-12-27 09:06:10 -08:00
Makefile	Linux 5.11-rc1	2020-12-27 15:30:22 -08:00
README	…

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.