xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

signal: Remove task parameter from force_sigsegv

Browse Source 
The function force_sigsegv is always called on the current task
so passing in current is redundant and not passing in current
makes this fact obvious.

This also makes it clear force_sigsegv always calls force_sig
on the current task.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2019-05-21 10:03:48 -05:00
parent 72abe3bcf0
commit cb44c9a0ab
12 changed files with 18 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/rseq.c
View File

@@ -277,7 +277,7 @@ void __rseq_handle_notify_resume(struct ksignal *ksig, struct pt_regs *regs)
error:
sig = ksig ? ksig->sig : 0;
force_sigsegv(sig, t);
force_sigsegv(sig);
}
#ifdef CONFIG_DEBUG_RSEQ

6
kernel/signal.c
View File

@@ -1607,8 +1607,10 @@ EXPORT_SYMBOL(force_sig);
* the problem was already a SIGSEGV, we'll want to
* make sure we don't even try to deliver the signal..
*/
void force_sigsegv(int sig, struct task_struct *p)
void force_sigsegv(int sig)
{
struct task_struct *p = current;
if (sig == SIGSEGV) {
unsigned long flags;
spin_lock_irqsave(&p->sighand->siglock, flags);
@@ -2717,7 +2719,7 @@ static void signal_delivered(struct ksignal *ksig, int stepping)
void signal_setup_done(int failed, struct ksignal *ksig, int stepping)
{
if (failed)
force_sigsegv(ksig->sig, current);
force_sigsegv(ksig->sig);
else
signal_delivered(ksig, stepping);
}