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Filename Latest commit message Latest commit date
Paul E. McKenney dfcac203a3 rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
[ Upstream commit a63fc6b75cca984c71f095282e0227a390ba88f3 ]

Although the rcu_swap_protected() macro follows the example of
swap(), the interactions with RCU make its update of its argument
somewhat counter-intuitive.  This commit therefore introduces
an rcu_replace_pointer() that returns the old value of the RCU
pointer instead of doing the argument update.  Once all the uses of
rcu_swap_protected() are updated to instead use rcu_replace_pointer(),
rcu_swap_protected() will be removed.

Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
[ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Shane M Seymour <shane.seymour@hpe.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: a61675294735 ("ieee802154: hwsim: Fix possible memory leaks")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-28 10:18:38 +02:00
arch x86/mm: Avoid using set_pgd() outside of real PGD pages 2023-06-28 10:18:38 +02:00
block block/blk-iocost (gcc13): keep large values in a new enum 2023-06-14 10:59:54 +02:00
certs
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
drivers mmc: meson-gx: remove redundant mmc_request_done() call from irq context 2023-06-28 10:18:36 +02:00
fs cifs: Fix potential deadlock when updating vol in cifs_reconnect() 2023-06-28 10:18:37 +02:00
include rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer() 2023-06-28 10:18:38 +02:00
init
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:23:06 +01:00
kernel cgroup: Do not corrupt task iteration when rebinding subsystem 2023-06-28 10:18:36 +02:00
lib test_firmware: fix a memory leak with reqs buffer 2023-06-21 15:44:08 +02:00
LICENSES
mm list: add "list_del_init_careful()" to go with "list_empty_careful()" 2023-06-28 10:18:35 +02:00
net neighbour: delete neigh_lookup_nodev as not used 2023-06-21 15:44:12 +02:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-30 12:44:03 +01:00
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:44:04 +01:00
security selinux: don't use make's grouped targets feature yet 2023-06-09 10:29:02 +02:00
sound ALSA: hda/realtek: Add a quirk for Compaq N14JP6 2023-06-21 15:44:10 +02:00
tools selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET 2023-06-21 15:44:12 +02:00
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 Remove DECnet support from kernel 2023-06-21 15:44:10 +02:00
Makefile Linux 5.4.248 2023-06-21 15:44:12 +02:00
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.