mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-23 19:11:51 +00:00
bc6cb4d5bc
- Introduce cmpxchg128() -- aka. the demise of cmpxchg_double(). The cmpxchg128() family of functions is basically & functionally the same as cmpxchg_double(), but with a saner interface: instead of a 6-parameter horror that forced u128 - u64/u64-halves layout details on the interface and exposed users to complexity, fragility & bugs, use a natural 3-parameter interface with u128 types. - Restructure the generated atomic headers, and add kerneldoc comments for all of the generic atomic{,64,_long}_t operations. Generated definitions are much cleaner now, and come with documentation. - Implement lock_set_cmp_fn() on lockdep, for defining an ordering when taking multiple locks of the same type. This gets rid of one use of lockdep_set_novalidate_class() in the bcache code. - Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended variable shadowing generating garbage code on Clang on certain ARM builds. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmSav3wRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gDyxAAjCHQjpolrre7fRpyiTDwqzIKT27H04vQ zrQVlVc42WBnn9pe8LthGy43/RvYvqlZvLoLONA4fMkuYriM6nSMsoZjeUmE+6Rs QAElQC74P5YvEBOa67VNY3/M7sj22ftDe7ODtVV8OrnPjMk1sQNRvaK025Cs3yig 8MAI//hHGNmyVAp1dPYZMJNqxGCvluReLZ4SaUJFCMrg7YgUXgCBj/5Gi07TlKxn sT8BFCssoEW/B9FXkh59B1t6FBCZoSy4XSZfsZe0uVAUJ4XDEOO+zBgaWFCedNQT wP323ryBgMrkzUKA8j2/o5d3QnMA1GcBfHNNlvAl/fOfrxWXzDZnOEY26YcaLMa0 YIuRF/JNbPZlt6DCUVBUEvMPpfNYi18dFN0rat1a6xL2L4w+tm55y3mFtSsg76Ka r7L2nWlRrAGXnuA+VEPqkqbSWRUSWOv5hT2Mcyb5BqqZRsxBETn6G8GVAzIO6j6v giyfUdA8Z9wmMZ7NtB6usxe3p1lXtnZ/shCE7ZHXm6xstyZrSXaHgOSgAnB9DcuJ 7KpGIhhSODQSwC/h/J0KEpb9Pr/5jCWmXAQ2DWnZK6ndt1jUfFi8pfK58wm0AuAM o9t8Mx3o8wZjbMdt6up9OIM1HyFiMx2BSaZK+8f/bWemHQ0xwez5g4k5O5AwVOaC x9Nt+Tp0Ze4= =DsYj -----END PGP SIGNATURE----- Merge tag 'locking-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: - Introduce cmpxchg128() -- aka. the demise of cmpxchg_double() The cmpxchg128() family of functions is basically & functionally the same as cmpxchg_double(), but with a saner interface. Instead of a 6-parameter horror that forced u128 - u64/u64-halves layout details on the interface and exposed users to complexity, fragility & bugs, use a natural 3-parameter interface with u128 types. - Restructure the generated atomic headers, and add kerneldoc comments for all of the generic atomic{,64,_long}_t operations. The generated definitions are much cleaner now, and come with documentation. - Implement lock_set_cmp_fn() on lockdep, for defining an ordering when taking multiple locks of the same type. This gets rid of one use of lockdep_set_novalidate_class() in the bcache code. - Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended variable shadowing generating garbage code on Clang on certain ARM builds. * tag 'locking-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg() locking/atomic: treewide: delete arch_atomic_*() kerneldoc locking/atomic: docs: Add atomic operations to the driver basic API documentation locking/atomic: scripts: generate kerneldoc comments docs: scripts: kernel-doc: accept bitwise negation like ~@var locking/atomic: scripts: simplify raw_atomic*() definitions locking/atomic: scripts: simplify raw_atomic_long*() definitions locking/atomic: scripts: split pfx/name/sfx/order locking/atomic: scripts: restructure fallback ifdeffery locking/atomic: scripts: build raw_atomic_long*() directly locking/atomic: treewide: use raw_atomic*_<op>() locking/atomic: scripts: add trivial raw_atomic*_<op>() locking/atomic: scripts: factor out order template generation locking/atomic: scripts: remove leftover "${mult}" locking/atomic: scripts: remove bogus order parameter locking/atomic: xtensa: add preprocessor symbols locking/atomic: x86: add preprocessor symbols locking/atomic: sparc: add preprocessor symbols locking/atomic: sh: add preprocessor symbols ... |
||
---|---|---|
.. | ||
bcache | ||
persistent-data | ||
dm-audit.c | ||
dm-audit.h | ||
dm-bio-prison-v1.c | ||
dm-bio-prison-v1.h | ||
dm-bio-prison-v2.c | ||
dm-bio-prison-v2.h | ||
dm-bio-record.h | ||
dm-bufio.c | ||
dm-builtin.c | ||
dm-cache-background-tracker.c | ||
dm-cache-background-tracker.h | ||
dm-cache-block-types.h | ||
dm-cache-metadata.c | ||
dm-cache-metadata.h | ||
dm-cache-policy-internal.h | ||
dm-cache-policy-smq.c | ||
dm-cache-policy.c | ||
dm-cache-policy.h | ||
dm-cache-target.c | ||
dm-clone-metadata.c | ||
dm-clone-metadata.h | ||
dm-clone-target.c | ||
dm-core.h | ||
dm-crypt.c | ||
dm-delay.c | ||
dm-dust.c | ||
dm-ebs-target.c | ||
dm-era-target.c | ||
dm-exception-store.c | ||
dm-exception-store.h | ||
dm-flakey.c | ||
dm-ima.c | ||
dm-ima.h | ||
dm-init.c | ||
dm-integrity.c | ||
dm-io-rewind.c | ||
dm-io-tracker.h | ||
dm-io.c | ||
dm-ioctl.c | ||
dm-kcopyd.c | ||
dm-linear.c | ||
dm-log-userspace-base.c | ||
dm-log-userspace-transfer.c | ||
dm-log-userspace-transfer.h | ||
dm-log-writes.c | ||
dm-log.c | ||
dm-mpath.c | ||
dm-mpath.h | ||
dm-path-selector.c | ||
dm-path-selector.h | ||
dm-ps-historical-service-time.c | ||
dm-ps-io-affinity.c | ||
dm-ps-queue-length.c | ||
dm-ps-round-robin.c | ||
dm-ps-service-time.c | ||
dm-raid.c | ||
dm-raid1.c | ||
dm-region-hash.c | ||
dm-rq.c | ||
dm-rq.h | ||
dm-snap-persistent.c | ||
dm-snap-transient.c | ||
dm-snap.c | ||
dm-stats.c | ||
dm-stats.h | ||
dm-stripe.c | ||
dm-switch.c | ||
dm-sysfs.c | ||
dm-table.c | ||
dm-target.c | ||
dm-thin-metadata.c | ||
dm-thin-metadata.h | ||
dm-thin.c | ||
dm-uevent.c | ||
dm-uevent.h | ||
dm-unstripe.c | ||
dm-verity-fec.c | ||
dm-verity-fec.h | ||
dm-verity-loadpin.c | ||
dm-verity-target.c | ||
dm-verity-verify-sig.c | ||
dm-verity-verify-sig.h | ||
dm-verity.h | ||
dm-writecache.c | ||
dm-zero.c | ||
dm-zone.c | ||
dm-zoned-metadata.c | ||
dm-zoned-reclaim.c | ||
dm-zoned-target.c | ||
dm-zoned.h | ||
dm.c | ||
dm.h | ||
Kconfig | ||
Makefile | ||
md-autodetect.c | ||
md-bitmap.c | ||
md-bitmap.h | ||
md-cluster.c | ||
md-cluster.h | ||
md-faulty.c | ||
md-linear.c | ||
md-linear.h | ||
md-multipath.c | ||
md-multipath.h | ||
md.c | ||
md.h | ||
raid0.c | ||
raid0.h | ||
raid1-10.c | ||
raid1.c | ||
raid1.h | ||
raid5-cache.c | ||
raid5-log.h | ||
raid5-ppl.c | ||
raid5.c | ||
raid5.h | ||
raid10.c | ||
raid10.h |