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Jens Axboe 920ab96f34 swap: fix swapfile read/write offset
commit caf6912f3f upstream.

We're not factoring in the start of the file for where to write and
read the swapfile, which leads to very unfortunate side effects of
writing where we should not be...

[This issue only affects swapfiles on filesystems on top of blockdevs
that implement rw_page ops (brd, zram, btt, pmem), and not on top of any
other block devices, in contrast to the upstream commit fix.]

Fixes: dd6bd0d9c7 ("swap: use bdev_read_page() / bdev_write_page()")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-07 11:27:46 +01:00
arch Xen/gnttab: handle p2m update errors on a per-slot basis 2021-03-07 11:27:45 +01:00
block blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-03 18:22:50 +01:00
certs certs: Fix blacklist flag type confusion 2021-03-03 18:22:46 +01:00
crypto crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key() 2021-03-03 18:22:43 +01:00
Documentation sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-03-07 11:27:45 +01:00
drivers zsmalloc: account the number of compacted pages correctly 2021-03-07 11:27:46 +01:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output 2021-03-07 11:27:45 +01:00
include zsmalloc: account the number of compacted pages correctly 2021-03-07 11:27:46 +01:00
init printk: reduce LOG_BUF_SHIFT range for H8300 2020-11-05 11:06:55 +01:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:17:07 +02:00
kernel printk: fix deadlock when kernel panic 2021-03-03 18:22:55 +01:00
lib lib/string: Add strscpy_pad() function 2021-02-23 14:00:30 +01:00
mm swap: fix swapfile read/write offset 2021-03-07 11:27:46 +01:00
net Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 11:27:44 +01:00
samples samples: bpf: Fix lwt_len_hist reusing previous BPF map 2020-12-29 13:46:56 +01:00
scripts scripts: set proper OpenSSL include dir also for sign-file 2021-03-07 11:27:41 +01:00
security smackfs: restrict bytes count in smackfs write functions 2021-03-07 11:27:43 +01:00
sound ALSA: hda/realtek: modify EAPD in the ALC886 2021-03-03 18:22:52 +01:00
tools perf test: Fix unaligned access in sample parsing test 2021-03-03 18:22:48 +01:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt kvm: check tlbs_dirty directly 2021-02-23 14:00:34 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 16:36:12 +01:00
Makefile Linux 4.14.223 2021-03-03 18:22:57 +01:00
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.