Re: [PATCH v2 3/4] arch: copy_thread: pass clone_flags as u64
David Hildenbrand <[email protected]>
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| Message-ID | <[email protected]> |
On 01.09.25 15:09, Simon Schuster via B4 Relay wrote: > From: Simon Schuster <[email protected]> > > With the introduction of clone3 in commit 7f192e3cd316 ("fork: add > clone3") the effective bit width of clone_flags on all architectures was > increased from 32-bit to 64-bit, with a new type of u64 for the flags. > However, for most consumers of clone_flags the interface was not > changed from the previous type of unsigned long. > > While this works fine as long as none of the new 64-bit flag bits > (CLONE_CLEAR_SIGHAND and CLONE_INTO_CGROUP) are evaluated, this is still > undesirable in terms of the principle of least surprise. > > Thus, this commit fixes all relevant interfaces of the copy_thread > function that is called from copy_process to consistently pass > clone_flags as u64, so that no truncation to 32-bit integers occurs on > 32-bit architectures. > > Signed-off-by: Simon Schuster <[email protected]> > --- > arch/alpha/kernel/process.c | 2 +- > arch/arc/kernel/process.c | 2 +- > arch/arm/kernel/process.c | 2 +- > arch/arm64/kernel/process.c | 2 +- > arch/csky/kernel/process.c | 2 +- > arch/hexagon/kernel/process.c | 2 +- > arch/loongarch/kernel/process.c | 2 +- > arch/m68k/kernel/process.c | 2 +- > arch/microblaze/kernel/process.c | 2 +- > arch/mips/kernel/process.c | 2 +- > arch/nios2/kernel/process.c | 2 +- > arch/openrisc/kernel/process.c | 2 +- > arch/parisc/kernel/process.c | 2 +- > arch/powerpc/kernel/process.c | 2 +- > arch/riscv/kernel/process.c | 2 +- > arch/s390/kernel/process.c | 2 +- > arch/sh/kernel/process_32.c | 2 +- > arch/sparc/kernel/process_32.c | 2 +- > arch/sparc/kernel/process_64.c | 2 +- > arch/um/kernel/process.c | 2 +- > arch/x86/include/asm/fpu/sched.h | 2 +- > arch/x86/include/asm/shstk.h | 4 ++-- > arch/x86/kernel/fpu/core.c | 2 +- > arch/x86/kernel/process.c | 2 +- > arch/x86/kernel/shstk.c | 2 +- > arch/xtensa/kernel/process.c | 2 +- > 26 files changed, 27 insertions(+), 27 deletions(-) > (Adjust To: list) Thanks! Acked-by: David Hildenbrand <[email protected]> -- Cheers David / dhildenb