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Ronnie Sahlberg 64f23e5430 cifs: destage dirty pages before re-reading them for cache=none 
commit bb44c31cdc upstream.

This is the opposite case of kernel bugzilla 216301.
If we mmap a file using cache=none and then proceed to update the mmapped
area these updates are not reflected in a later pread() of that part of the
file.
To fix this we must first destage any dirty pages in the range before
we allow the pread() to proceed.

Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-26 13:25:07 +02:00
arch arch: um: Mark the stack non-executable to fix a binutils warning 2022-10-15 07:55:53 +02:00
block blk-mq: fix io hung due to missing commit_rqs 2022-08-31 17:15:24 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto KEYS: asymmetric: enforce SM2 signature use pkey algo 2022-08-21 15:16:22 +02:00
Documentation ARM: dts: fix Moxa SDIO 'compatible', remove 'sdhci' misnomer 2022-10-15 07:55:52 +02:00
drivers mtd: rawnand: atmel: Unmap streaming DMA mappings 2022-10-26 13:25:07 +02:00
fs cifs: destage dirty pages before re-reading them for cache=none 2022-10-26 13:25:07 +02:00
include scsi: stex: Properly zero out the passthrough command structure 2022-10-15 07:55:55 +02:00
init Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug 2022-06-09 10:21:25 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-09 10:21:17 +02:00
kernel swiotlb: max mapping size takes min align mask into account 2022-10-05 10:38:40 +02:00
lib lib/vdso: Mark do_hres_timens() and do_coarse_timens() __always_inline() 2022-09-05 10:28:58 +02:00
LICENSES
mm mm: gup: fix the fast GUP race against THP collapse 2022-10-15 07:55:51 +02:00
net wifi: mac80211: fix MBSSID parsing use-after-free 2022-10-17 17:26:07 +02:00
samples x86: Prepare inline-asm for straight-line-speculation 2022-07-25 11:26:29 +02:00
scripts Makefile.extrawarn: Move -Wcast-function-type-strict to W=1 2022-10-15 07:55:50 +02:00
security efi: Correct Macmini DMI match in uefi cert quirk 2022-10-15 07:55:54 +02:00
sound ALSA: hda/realtek: Add Intel Reference SSID to support headset keys 2022-10-26 13:25:06 +02:00
tools perf tools: Fixup get_current_dir_name() compilation 2022-10-15 07:55:50 +02:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt KVM: SEV: add cache flush to solve SEV cache incoherency issues 2022-09-28 11:10:28 +02:00
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MAINTAINERS MAINTAINERS: add Amir as xfs maintainer for 5.10.y 2022-07-02 16:39:22 +02:00
Makefile Linux 5.10.149 2022-10-17 17:26:07 +02:00
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.