uprobes/core: Make order of function parameters consistent across functions

If a function takes struct uprobe or struct arch_uprobe, then it
is passed as the first parameter.

This is pure cleanup, no functional change intended.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@kvack.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120312092530.5379.18394.sendpatchset@srdronam.in.ibm.comSigned-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/include/asm/uprobes.h

@@ -39,5 +39,5 @@ struct arch_uprobe {
 #endif
 };
 
-extern int arch_uprobes_analyze_insn(struct mm_struct *mm, struct arch_uprobe *arch_uprobe);
+extern int arch_uprobes_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm);
 #endif	/* _ASM_UPROBES_H */

arch/x86/kernel/uprobes.c

@@ -297,7 +297,8 @@ static void prepare_fixups(struct arch_uprobe *auprobe, struct insn *insn)
  *  - There's never a SIB byte.
  *  - The displacement is always 4 bytes.
  */
-static void handle_riprel_insn(struct mm_struct *mm, struct arch_uprobe *auprobe, struct insn *insn)
+static void
+handle_riprel_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, struct insn *insn)
 {
 	u8 *cursor;
 	u8 reg;
@@ -381,19 +382,19 @@ static int validate_insn_64bits(struct arch_uprobe *auprobe, struct insn *insn)
 	return -ENOTSUPP;
 }
 
-static int validate_insn_bits(struct mm_struct *mm, struct arch_uprobe *auprobe, struct insn *insn)
+static int validate_insn_bits(struct arch_uprobe *auprobe, struct mm_struct *mm, struct insn *insn)
 {
 	if (mm->context.ia32_compat)
 		return validate_insn_32bits(auprobe, insn);
 	return validate_insn_64bits(auprobe, insn);
 }
 #else /* 32-bit: */
-static void handle_riprel_insn(struct mm_struct *mm, struct arch_uprobe *auprobe, struct insn *insn)
+static void handle_riprel_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, struct insn *insn)
 {
 	/* No RIP-relative addressing on 32-bit */
 }
 
-static int validate_insn_bits(struct mm_struct *mm, struct arch_uprobe *auprobe, struct insn *insn)
+static int validate_insn_bits(struct arch_uprobe *auprobe, struct mm_struct *mm,  struct insn *insn)
 {
 	return validate_insn_32bits(auprobe, insn);
 }
@@ -405,17 +406,17 @@ static int validate_insn_bits(struct mm_struct *mm, struct arch_uprobe *auprobe,
  * @arch_uprobe: the probepoint information.
  * Return 0 on success or a -ve number on error.
  */
-int arch_uprobes_analyze_insn(struct mm_struct *mm, struct arch_uprobe *auprobe)
+int arch_uprobes_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm)
 {
 	int ret;
 	struct insn insn;
 
 	auprobe->fixups = 0;
-	ret = validate_insn_bits(mm, auprobe, &insn);
+	ret = validate_insn_bits(auprobe, mm, &insn);
 	if (ret != 0)
 		return ret;
 
-	handle_riprel_insn(mm, auprobe, &insn);
+	handle_riprel_insn(auprobe, mm, &insn);
 	prepare_fixups(auprobe, &insn);
 
 	return 0;

include/linux/uprobes.h

@@ -52,20 +52,20 @@ struct uprobe_consumer {
 };
 
 #ifdef CONFIG_UPROBES
-extern int __weak set_bkpt(struct mm_struct *mm, struct arch_uprobe *auprobe, unsigned long vaddr);
-extern int __weak set_orig_insn(struct mm_struct *mm, struct arch_uprobe *auprobe, unsigned long vaddr, bool verify);
+extern int __weak set_bkpt(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
+extern int __weak set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm,  unsigned long vaddr, bool verify);
 extern bool __weak is_bkpt_insn(uprobe_opcode_t *insn);
-extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer);
-extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer);
+extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
+extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
 extern int uprobe_mmap(struct vm_area_struct *vma);
 #else /* CONFIG_UPROBES is not defined */
 static inline int
-uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer)
+uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc)
 {
 	return -ENOSYS;
 }
 static inline void
-uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer)
+uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc)
 {
 }
 static inline int uprobe_mmap(struct vm_area_struct *vma)