Linus Torvalds 253e1e9818 lkmm: Fix corner-case locking bug and improve documentation ... A simple but odd single-process litmus test acquires and immediately releases a lock, then calls spin_is_locked(). LKMM acts if it was a deadlock due to an assumption that spin_is_locked() will follow a spin_lock() or some other process's spin_unlock(). This litmus test manages to violate this assumption because the spin_is_locked() follows the same process's spin_unlock(). This series fixes this bug, reorganizes and optimizes the lock.cat model, and updates documentation. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmaRwSUTHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jNmcD/0dhWCkytKMLwVke6oLP++HTFK/Uzrb XsXkq5t0Y+xzf7KKca9XuqEMRnaenLM07Swx0ujn2fH7FrXCNlzHD6R4T2e8r+L5 9TVa1ewRfpjH8tM6YLsMbiH4yRah47F9p6CulRHJiHtyU2pLgThIF0/KrhiYKn2P aBF4zclt0TJkTgJDaoJ45z6YTWNFMv+DopRwWT9vm0CNS4jaxHrn8CaBtiv1arWe 9CMArXtPS6eJjbZ9RPLSVlNUufLD7QnyPXRPjd7hwBHReEgcfvpAYKfsAZanhSqv vTp9PRQlu1j9pcjrSCzZ2baBXd0XhuX2wtjNBZXcb2yzIj6V2t5rADKKEG7IONTj eV0ZpMm5bF6lUZBtr1YowgNPwKktdqIVavXk1Sl/fiUs/B8thKZI/pekOMLwq5An SdcCO2m6tY5fYvsvIpfRExvx3TGrRHw+64C/jZrGPhLL6d87tTr0uuyZe1XDxv2+ yGkDuKHUGg7lAXbd6sPvPLOej6pOFbb43qUa7AwBtXBrUs9nF1AuegTM8ux+5eCe qbA6GrvPyeSXOwsy0XD83oOQ4o93f0GdpMnIgQNK32uaEvQJf1MenTcTjXD8RfGv FqxSqhSGNQSXjmBCRFHujR2lR7aWSEUWTEdV+hnSd8O0q4IG2LMwK+TzbtJXJTl8 KZgRYz7lne7sQw== =kUWy -----END PGP SIGNATURE----- Merge tag 'lkmm.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull memory model updates from Paul McKenney: "lkmm: Fix corner-case locking bug and improve documentation A simple but odd single-process litmus test acquires and immediately releases a lock, then calls spin_is_locked(). LKMM acts if it was a deadlock due to an assumption that spin_is_locked() will follow a spin_lock() or some other process's spin_unlock(). This litmus test manages to violate this assumption because the spin_is_locked() follows the same process's spin_unlock(). This series fixes this bug, reorganizes and optimizes the lock.cat model, and updates documentation" * tag 'lkmm.2024.07.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: tools/memory-model: Code reorganization in lock.cat tools/memory-model: Fix bug in lock.cat tools/memory-model: Add access-marking.txt to README tools/memory-model: Add KCSAN LF mentorship session citation		2024-07-15 15:22:35 -07:00
..
accounting
arch	tools headers arm64: Sync arm64's cputype.h with the kernel sources	2024-06-04 16:46:40 -03:00
bootconfig
bpf	bpf: Fix potential integer overflow in resolve_btfids	2024-05-24 17:12:12 +02:00
build
certs
cgroup	proc: rewrite stable_page_flags()	2024-04-25 20:56:15 -07:00
counter
crypto
debugging
firewire
firmware
gpio
hv	tools: hv: suppress the invalid warning for packed member alignment	2024-05-28 05:27:35 +00:00
iio
include	perf tools fixes for v6.10: 2nd batch	2024-06-09 09:04:51 -07:00
kvm/kvm_stat
laptop
leds
lib	libbpf: don't close(-1) in multi-uprobe feature detector	2024-05-31 14:56:51 -07:00
memory-model	tools/memory-model: Code reorganization in lock.cat	2024-06-06 11:24:58 -07:00
mm
net/ynl	ynl: ensure exact-len value is resolved	2024-05-13 14:59:24 -07:00
objtool
pci
pcmcia
perf	perf dsos: When adding a dso into sorted dsos maintain the sort order	2024-07-07 22:26:29 -07:00
power	tools/power turbostat: Add local build_bug.h header for snapshot target	2024-06-27 23:53:27 -04:00
rcu
scripts
sound	ASoC: dapm-graph: new tool to visualize DAPM state	2024-04-21 09:58:17 +09:00
spi
testing	vfs-6.11.mount	2024-07-15 11:54:04 -07:00
thermal
time
tracing	tools/latency-collector: Fix -Wformat-security compile warns	2024-05-23 10:46:01 -04:00
usb
verification
virtio
wmi
workqueue
writeback	writeback: add wb_monitor.py script to monitor writeback info on bdi	2024-05-05 17:53:51 -07:00
Makefile