Re: [PATCH v5 0/4] Align atomic storage
Andrew Morton <[email protected]>
| Newsgroups | gmane.linux.kernel.cross-arch,gmane.linux.kernel.bpf,gmane.linux.kernel,gmane.linux.ports.sh.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 16 Dec 2025 17:31:05 +1100 Finn Thain <[email protected]> wrote: > This series adds the __aligned attribute to atomic_t and atomic64_t > definitions in include/linux and include/asm-generic (respectively) > to get natural alignment of both types on csky, m68k, microblaze, > nios2, openrisc and sh. > > This series also adds Kconfig options to enable a new run-time warning > to help reveal misaligned atomic accesses on platforms which don't > trap that. > > The performance impact is expected to vary across platforms and workloads. > The measurements I made on m68k show that some workloads run faster and > others slower. Looks nice, thanks. I don't know which tree this is aimed at. I grabbed a copy for mm.git's mm-nonmm-unstable tree, can drop it again if this pops up in linux-next via another route.