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Chuck Lever 8cc0e63ba8 Revert "SUNRPC: Use RMW bitops in single-threaded hot paths" 
commit 7827c81f02 upstream.

The premise that "Once an svc thread is scheduled and executing an
RPC, no other processes will touch svc_rqst::rq_flags" is false.
svc_xprt_enqueue() examines the RQ_BUSY flag in scheduled nfsd
threads when determining which thread to wake up next.

Found via KCSAN.

Fixes: 28df098881 ("SUNRPC: Use RMW bitops in single-threaded hot paths")
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-14 10:33:42 +01:00
arch x86/fpu: Emulate XRSTOR's behavior if the xfeatures PKRU bit is not set 2023-01-14 10:33:42 +01:00
block block: don't allow splitting of a REQ_NOWAIT bio 2023-01-12 12:02:47 +01:00
certs
crypto
Documentation
drivers wifi: ath11k: Send PME message during wakeup from D3cold 2023-01-12 12:02:58 +01:00
fs Revert "SUNRPC: Use RMW bitops in single-threaded hot paths" 2023-01-14 10:33:42 +01:00
include efi: random: combine bootloader provided RNG seed with RNG protocol output 2023-01-12 12:02:58 +01:00
init
io_uring io_uring: fix CQ waiting timeout handling 2023-01-12 12:02:48 +01:00
ipc
kernel bpf: Fix panic due to wrong pageattr of im->image 2023-01-12 12:02:45 +01:00
lib
LICENSES
mm
net Revert "SUNRPC: Use RMW bitops in single-threaded hot paths" 2023-01-14 10:33:42 +01:00
rust
samples
scripts
security
sound
tools selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace 2023-01-14 10:33:42 +01:00
usr
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Makefile Linux 6.1.5 2023-01-12 12:02:59 +01:00
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.