Messages in this thread | | | Subject | Re: [PATCH -next v2 0/3] riscv: Fix two vdso issue | From | Kefeng Wang <> | Date | Mon, 23 Aug 2021 10:02:40 +0800 |
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On 2021/8/20 20:50, Tong Tiangen wrote: > v2->v1: > Add patch "Refactor asm/vdso.h" to avoid vdso.lds syntax error if > CONFIG_GENERIC_TIME_VSYSCALL=n.
This is better than v1.
> > 1) Refactor the asm/vdso.h to avoid vdso.lds syntax error. > > 2) Move vdso data page up front Move vdso data page before code page could save the problem which the .text
section could be bigger than PAGE_SIZE.
> and introduce enum vvar_pages, To pave the > way for the subsequent support of TIME_NS, the support of TIME_NS will be > issued in the later patch. This makes it easier to introduce new features TIME_NS.
> > 3) In arch_setup_additional_pages(), make Wait for the lock in the > killable mode and return with EINTR if the task got killed while waiting. For series,
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com> > Tong Tiangen (3): > riscv/vdso: Refactor asm/vdso.h > riscv/vdso: Move vdso data page up front > riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for > write killable > > arch/riscv/include/asm/syscall.h | 1 + > arch/riscv/include/asm/vdso.h | 10 ++---- > arch/riscv/kernel/syscall_table.c | 1 - > arch/riscv/kernel/vdso.c | 53 +++++++++++++++++++------------ > arch/riscv/kernel/vdso/vdso.lds.S | 3 +- > 5 files changed, 39 insertions(+), 29 deletions(-) >
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