diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2022-02-11 21:42:45 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2022-02-25 09:36:06 +0100 |
| commit | 967747bbc084b93b54e66f9047d342232314cd25 (patch) | |
| tree | 816678a5afa21612d3d420c2cd6fc61abc64cda1 /arch/sparc/kernel | |
| parent | e5ef21d139957b8d064fefb7db42d1525605dd98 (diff) | |
uaccess: remove CONFIG_SET_FS
There are no remaining callers of set_fs(), so CONFIG_SET_FS
can be removed globally, along with the thread_info field and
any references to it.
This turns access_ok() into a cheaper check against TASK_SIZE_MAX.
As CONFIG_SET_FS is now gone, drop all remaining references to
set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel().
Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes
Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic]
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/process_32.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 2dc0bf9fe62e..88c0c14aaff0 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -300,7 +300,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg, extern int nwindows; unsigned long psr; memset(new_stack, 0, STACKFRAME_SZ + TRACEREG_SZ); - p->thread.current_ds = KERNEL_DS; ti->kpc = (((unsigned long) ret_from_kernel_thread) - 0x8); childregs->u_regs[UREG_G1] = sp; /* function */ childregs->u_regs[UREG_G2] = arg; @@ -311,7 +310,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg, } memcpy(new_stack, (char *)regs - STACKFRAME_SZ, STACKFRAME_SZ + TRACEREG_SZ); childregs->u_regs[UREG_FP] = sp; - p->thread.current_ds = USER_DS; ti->kpc = (((unsigned long) ret_from_fork) - 0x8); ti->kpsr = current->thread.fork_kpsr | PSR_PIL; ti->kwim = current->thread.fork_kwim; |