[PATCH v7 2/6] Uprobe: Additional argument arch_uprobe to uprobe_write_opcode()

[Ravi Bangoria]

Add addition argument 'arch_uprobe' to uprobe_write_opcode().
We need this in later set of patches.

Signed-off-by: Ravi Bangoria <ravi.bango...@linux.ibm.com>
---
 arch/arm/probes/uprobes/core.c | 2 +-
 arch/mips/kernel/uprobes.c     | 2 +-
 include/linux/uprobes.h        | 2 +-
 kernel/events/uprobes.c        | 9 +++++----
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/arm/probes/uprobes/core.c b/arch/arm/probes/uprobes/core.c
index d1329f1ba4e4..bf992264060e 100644
--- a/arch/arm/probes/uprobes/core.c
+++ b/arch/arm/probes/uprobes/core.c
@@ -32,7 +32,7 @@ bool is_swbp_insn(uprobe_opcode_t *insn)
 int set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm,
             unsigned long vaddr)
 {
-       return uprobe_write_opcode(mm, vaddr,
+       return uprobe_write_opcode(auprobe, mm, vaddr,
                   __opcode_to_mem_arm(auprobe->bpinsn));
 }
 
diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index f7a0645ccb82..4aaff3b3175c 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -224,7 +224,7 @@ unsigned long arch_uretprobe_hijack_return_addr(
 int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm,
        unsigned long vaddr)
 {
-       return uprobe_write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
+       return uprobe_write_opcode(auprobe, mm, vaddr, UPROBE_SWBP_INSN);
 }
 
 void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 0a294e950df8..bb9d2084af03 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -121,7 +121,7 @@ extern bool is_swbp_insn(uprobe_opcode_t *insn);
 extern bool is_trap_insn(uprobe_opcode_t *insn);
 extern unsigned long uprobe_get_swbp_addr(struct pt_regs *regs);
 extern unsigned long uprobe_get_trap_addr(struct pt_regs *regs);
-extern int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, 
uprobe_opcode_t);
+extern int uprobe_write_opcode(struct arch_uprobe *auprobe, struct mm_struct 
*mm, unsigned long vaddr, uprobe_opcode_t);
 extern int uprobe_register(struct inode *inode, loff_t offset, struct 
uprobe_consumer *uc);
 extern int uprobe_apply(struct inode *inode, loff_t offset, struct 
uprobe_consumer *uc, bool);
 extern void uprobe_unregister(struct inode *inode, loff_t offset, struct 
uprobe_consumer *uc);
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 471eac896635..c0418ba52ba8 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -299,8 +299,8 @@ static int verify_opcode(struct page *page, unsigned long 
vaddr, uprobe_opcode_t
  * Called with mm->mmap_sem held for write.
  * Return 0 (success) or a negative errno.
  */
-int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr,
-                       uprobe_opcode_t opcode)
+int uprobe_write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
+                       unsigned long vaddr, uprobe_opcode_t opcode)
 {
        struct page *old_page, *new_page;
        struct vm_area_struct *vma;
@@ -351,7 +351,7 @@ int uprobe_write_opcode(struct mm_struct *mm, unsigned long 
vaddr,
  */
 int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, 
unsigned long vaddr)
 {
-       return uprobe_write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
+       return uprobe_write_opcode(auprobe, mm, vaddr, UPROBE_SWBP_INSN);
 }
 
 /**
@@ -366,7 +366,8 @@ int __weak set_swbp(struct arch_uprobe *auprobe, struct 
mm_struct *mm, unsigned
 int __weak
 set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long 
vaddr)
 {
-       return uprobe_write_opcode(mm, vaddr, *(uprobe_opcode_t 
*)&auprobe->insn);
+       return uprobe_write_opcode(auprobe, mm, vaddr,
+                       *(uprobe_opcode_t *)&auprobe->insn);
 }
 
 static struct uprobe *get_uprobe(struct uprobe *uprobe)
-- 
2.14.4