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Stanislaw Gruszka 6dc75ccba5 lib/div64.c: off by one in shift 
[ Upstream commit cdc94a3749 ]

fls counts bits starting from 1 to 32 (returns 0 for zero argument).  If
we add 1 we shift right one bit more and loose precision from divisor,
what cause function incorect results with some numbers.

Corrected code was tested in user-space, see bugzilla:
   https://bugzilla.kernel.org/show_bug.cgi?id=202391

Link: http://lkml.kernel.org/r/1548686944-11891-1-git-send-email-sgruszka@redhat.com
Fixes: 658716d19f ("div64_u64(): improve precision on 32bit platforms")
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Reported-by: Siarhei Volkau <lis8215@gmail.com>
Tested-by: Siarhei Volkau <lis8215@gmail.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2019-04-20 09:15:07 +02:00
Documentation ARM: 8833/1: Ensure that NEON code always compiles with Clang 2019-04-05 22:31:34 +02:00
arch ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t 2019-04-20 09:15:07 +02:00
block block: do not leak memory in bio_copy_user_iov() 2019-04-17 08:37:53 +02:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 14:35:21 +01:00
drivers drm/amdkfd: use init_mqd function to allocate object for hid_mqd (CI) 2019-04-20 09:15:07 +02:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs cifs: fallback to older infolevels on findfirst queryinfo retry 2019-04-20 09:15:05 +02:00
include appletalk: Fix use-after-free in atalk_proc_exit 2019-04-20 09:15:07 +02:00
init Revert "mm: use early_pfn_to_nid in page_ext_init" 2019-03-23 14:35:13 +01:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel kernel: hung_task.c: disable on suspend 2019-04-20 09:15:05 +02:00
lib lib/div64.c: off by one in shift 2019-04-20 09:15:07 +02:00
mm page_poison: play nicely with KASAN 2019-04-05 22:31:28 +02:00
net appletalk: Fix use-after-free in atalk_proc_exit 2019-04-20 09:15:07 +02:00
samples samples: mei: use /dev/mei0 instead of /dev/mei 2019-02-15 08:09:12 +01:00
scripts kbuild: modversions: Fix relative CRC byte order interpretation 2019-04-03 06:25:17 +02:00
security selinux: do not override context on context mounts 2019-04-05 22:31:39 +02:00
sound ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration 2019-04-20 09:15:00 +02:00
tools usbip: fix vhci_hcd controller counting 2019-04-20 09:15:05 +02:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: Reject device ioctls from processes other than the VM's creator 2019-04-03 06:25:20 +02:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
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CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS MAINTAINERS: Add Sasha as a stable branch maintainer 2018-12-01 09:42:50 +01:00
Makefile Linux 4.14.112 2019-04-17 08:37:55 +02:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.