commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
author Eric W. Biederman <ebiederm@xmission.com> Thu May 23 10:17:27 2019 -0500
committer Eric W. Biederman <ebiederm@xmission.com> Mon May 27 09:36:28 2019 -0500
tree 935f7af65a7a7f1ba514f1da5b207e2dc298eaca
parent cb44c9a0ab21a9ae4dfcabac1ed8e38aa872d1af

signal: Remove task parameter from force_sig

All of the remaining callers pass current into force_sig so
remove the task parameter to make this obvious and to make
misuse more difficult in the future.

This also makes it clear force_sig passes current into force_sig_info.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

arch/um/kernel/exec.c

diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index a43d42b..783b924 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -32,7 +32,7 @@ void flush_thread(void)
 	if (ret) {
 		printk(KERN_ERR "flush_thread - clearing address space failed, "
 		       "err = %d\n", ret);
-		force_sig(SIGKILL, current);
+		force_sig(SIGKILL);
 	}
 	get_safe_registers(current_pt_regs()->regs.gp,
 			   current_pt_regs()->regs.fp);

arch/um/kernel/tlb.c

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 8347161..45f739b 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -329,7 +329,7 @@ void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
 		       "process: %d\n", task_tgid_vnr(current));
 		/* We are under mmap_sem, release it such that current can terminate */
 		up_write(&current->mm->mmap_sem);
-		force_sig(SIGKILL, current);
+		force_sig(SIGKILL);
 		do_signal(&current->thread.regs);
 	}
 }
@@ -487,7 +487,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long address)
 
 kill:
 	printk(KERN_ERR "Failed to flush page for address 0x%lx\n", address);
-	force_sig(SIGKILL, current);
+	force_sig(SIGKILL);
 }
 
 pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address)

arch/um/kernel/trap.c

diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 6460594..1c943c6 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -309,7 +309,7 @@ void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs)
 	} else {
 		printk(KERN_ERR "Attempted to relay unknown signal %d (si_code = %d) with errno %d\n",
 		       sig, code, err);
-		force_sig(sig, current);
+		force_sig(sig);
 	}
 }