[PATCH -next v2 0/3] riscv: Fix two vdso issue
Tong Tiangen
tongtiangen at huawei.com
Fri Aug 20 05:50:39 PDT 2021
v2->v1:
Add patch "Refactor asm/vdso.h" to avoid vdso.lds syntax error if
CONFIG_GENERIC_TIME_VSYSCALL=n.
1) Refactor the asm/vdso.h to avoid vdso.lds syntax error.
2) Move vdso data page up front 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.
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.
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(-)
--
2.18.0.huawei.25
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