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whack-a-mole: there's no point doing set_fs(USER_DS) in sigframe setup

Telusuri Sumber 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2015-02-23 05:46:21 -05:00
orang tua a555ad450f
melakukan 74008b365d
6 mengubah file dengan 0 tambahan dan 21 penghapusan
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4
arch/sh/kernel/signal_32.c
Melihat File

@@ -329,8 +329,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
if (err)
return -EFAULT;
set_fs(USER_DS);
pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
@@ -408,8 +406,6 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
if (err)
return -EFAULT;
set_fs(USER_DS);
pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);

4
arch/sh/kernel/signal_64.c
Melihat File

@@ -457,8 +457,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
regs->pc = neff_sign_extend((unsigned long)ksig->ka.sa.sa_handler);
set_fs(USER_DS);
/* Broken %016Lx */
pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
signal, current->comm, current->pid, frame,
@@ -547,8 +545,6 @@ static int setup_rt_frame(struct ksignal *kig, sigset_t *set,
regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
regs->pc = neff_sign_extend((unsigned long)ksig->ka.sa.sa_handler);
set_fs(USER_DS);
pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
signal, current->comm, current->pid, frame,
regs->pc >> 32, regs->pc & 0xffffffff,