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Filename Latest commit message Latest commit date
Viresh Kumar 9f7d28075a opp: Replace list_kref with a local counter 
[ Upstream commit 03758d60265c773e1d06d436b99ee338f2ac55d6 ]

A kref or refcount isn't the right tool to be used here for counting
number of devices that are sharing the static OPPs created for the OPP
table. For example, we are reinitializing the kref again, after it
reaches a value of 0 and frees the resources, if the static OPPs get
added for the same OPP table structure (as the OPP table structure was
never freed). That is messy and very unclear.

This patch makes parsed_static_opps an unsigned integer and uses it to
count the number of users of the static OPPs. The increment and
decrement to parsed_static_opps is done under opp_table->lock now to
make sure no races are possible if the OPP table is getting added and
removed in parallel (which doesn't happen in practice, but can in
theory).

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:26 +02:00
arch arm64: insn: consistently handle exit text 2020-10-01 13:17:23 +02:00
block block: only call sched requeue_request() for scheduled requests 2020-09-23 12:40:37 +02:00
certs
crypto crypto: af_alg - Work around empty control messages without MSG_MORE 2020-09-03 11:27:05 +02:00
Documentation affs: fix basic permission bits to actually work 2020-09-09 19:12:34 +02:00
drivers opp: Replace list_kref with a local counter 2020-10-01 13:17:26 +02:00
fs xfs: fix log reservation overflows when allocating large rt extents 2020-10-01 13:17:24 +02:00
include seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier 2020-10-01 13:17:25 +02:00
init
ipc
kernel module: Remove accidental change of module_enable_x() 2020-10-01 13:17:24 +02:00
lib kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() 2020-10-01 13:17:10 +02:00
LICENSES
mm mm: fix double page fault on arm64 if PTE_AF is cleared 2020-10-01 13:17:12 +02:00
net ipv6_route_seq_next should increase position index 2020-10-01 13:17:25 +02:00
samples bpf: Fix fds_example SIGSEGV error 2020-08-19 08:16:03 +02:00
scripts checkpatch: fix the usage of capture group ( ... ) 2020-09-09 19:12:37 +02:00
security selinux: allow labeling before policy is loaded 2020-10-01 13:17:10 +02:00
sound ALSA: hda: enable regmap internal locking 2020-10-01 13:17:24 +02:00
tools selftests/bpf: De-flake test_tcpbpf 2020-10-01 13:17:23 +02:00
usr
virt KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy() 2020-10-01 13:17:23 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-08-26 10:40:46 +02:00
Makefile Linux 5.4.68 2020-09-26 18:03:16 +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.