diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2016-02-18 15:50:04 +0000 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-05-11 22:19:24 +0800 |
| commit | 9193df45aa67b769ee8af97609537a876a81baca (patch) | |
| tree | 3891340819229c44c3d5576cfe7c3bac0aea95a4 /arch/arm64/mm | |
| parent | cdfec5aaf4a886521b7f54dfe2db61735558d546 (diff) | |
arm64: Remove the get_thread_info() function
This function was introduced by previous commits implementing UAO.
However, it can be replaced with task_thread_info() in
uao_thread_switch() or get_fs() in do_page_fault() (the latter being
called only on the current context, so no need for using the saved
pt_regs).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit e950631e84e7e38892ffbeee5e1816b270026b0e)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/fault.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index d0762a729d01..a8eafeceb08a 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -234,7 +234,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr, } if (permission_fault(esr) && (addr < USER_DS)) { - if (get_thread_info(regs->sp)->addr_limit == KERNEL_DS) + if (get_fs() == KERNEL_DS) panic("Accessing user space memory with fs=KERNEL_DS"); if (!search_exception_tables(regs->pc)) |