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Filename Latest commit message Latest commit date
Eric Dumazet 821362a2df tcp: tcp_check_req() can be called from process context
[ Upstream commit 580f98cc33a260bb8c6a39ae2921b29586b84fdf ]

This is a follow up of commit 0a375c822497 ("tcp: tcp_rtx_synack()
can be called from process context").

Frederick Lawler reported another "__this_cpu_add() in preemptible"
warning caused by the same reason.

In my former patch I took care of tcp_rtx_synack()
but forgot that tcp_check_req() also contained some SNMP updates.

Note that some parts of tcp_check_req() always run in BH context,
I added a comment to clarify this.

Fixes: 8336886f78 ("tcp: TCP Fast Open Server - support TFO listeners")
Link: https://lore.kernel.org/netdev/8cd33923-a21d-397c-e46b-2a068c287b03@cloudflare.com/T/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Frederick Lawler <fred@cloudflare.com>
Tested-by: Frederick Lawler <fred@cloudflare.com>
Link: https://lore.kernel.org/r/20230227083336.4153089-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 16:44:12 +01:00
arch ARM: dts: spear320-hmi: correct STMPE GPIO compatible 2023-03-11 16:44:12 +01:00
block blk-iocost: fix divide by 0 error in calc_lcoefs() 2023-03-11 16:43:54 +01:00
certs
crypto crypto: rsa-pkcs1pad - Use akcipher_request_complete 2023-03-11 16:43:41 +01:00
Documentation mm: memcontrol: deprecate charge moving 2023-03-11 16:44:05 +01:00
drivers nfc: fix memory leak of se_io context in nfc_genl_se_io 2023-03-11 16:44:12 +01:00
fs ubifs: ubifs_writepage: Mark page dirty after writing inode failed 2023-03-11 16:44:10 +01:00
include sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop 2023-03-11 16:44:11 +01:00
init
ipc
kernel irqdomain: Drop bogus fwspec-mapping error handling 2023-03-11 16:44:03 +01:00
lib
LICENSES
mm mm/thp: check and bail out if page in deferred queue already 2023-03-11 16:44:05 +01:00
net tcp: tcp_check_req() can be called from process context 2023-03-11 16:44:12 +01:00
samples
scripts
security ima: Align ima_file_mmap() parameters with mmap_file LSM hook 2023-03-11 16:44:02 +01:00
sound ALSA: hda/realtek: Add quirk for HP EliteDesk 800 G6 Tower PC 2023-03-11 16:44:03 +01:00
tools ktest.pl: Add RUN_TIMEOUT option with default unlimited 2023-03-11 16:44:05 +01:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile kbuild: Port silent mode detection to future gnu make. 2023-03-11 16:44:07 +01:00
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.