uprobes/core: Rename bkpt to swbp

bkpt doesnt seem to be a correct abbrevation for breakpoint.
Choice was between bp and breakpoint. Since bp can refer to
things other than breakpoint, use swbp to refer to breakpoints.

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/20120312092545.5379.91251.sendpatchset@srdronam.in.ibm.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 17 insertions, 17 deletions

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 9c5ddff1c8d..e56e56aa753 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -170,14 +170,14 @@ out:
 }
 
 /**
- * is_bkpt_insn - check if instruction is breakpoint instruction.
+ * is_swbp_insn - check if instruction is breakpoint instruction.
  * @insn: instruction to be checked.
- * Default implementation of is_bkpt_insn
+ * Default implementation of is_swbp_insn
  * Returns true if @insn is a breakpoint instruction.
  */
-bool __weak is_bkpt_insn(uprobe_opcode_t *insn)
+bool __weak is_swbp_insn(uprobe_opcode_t *insn)
 {
-	return *insn == UPROBE_BKPT_INSN;
+	return *insn == UPROBE_SWBP_INSN;
 }
 
 /*
@@ -227,7 +227,7 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
 	 * adding probes in write mapped pages since the breakpoints
 	 * might end up in the file copy.
 	 */
-	if (!valid_vma(vma, is_bkpt_insn(&opcode)))
+	if (!valid_vma(vma, is_swbp_insn(&opcode)))
 		goto put_out;
 
 	uprobe = container_of(auprobe, struct uprobe, arch);
@@ -259,8 +259,8 @@ static int write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm,
 
 	/* poke the new insn in, ASSUMES we don't cross page boundary */
 	vaddr &= ~PAGE_MASK;
-	BUG_ON(vaddr + UPROBE_BKPT_INSN_SIZE > PAGE_SIZE);
-	memcpy(vaddr_new + vaddr, &opcode, UPROBE_BKPT_INSN_SIZE);
+	BUG_ON(vaddr + UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);
+	memcpy(vaddr_new + vaddr, &opcode, UPROBE_SWBP_INSN_SIZE);
 
 	kunmap_atomic(vaddr_new);
 	kunmap_atomic(vaddr_old);
@@ -308,7 +308,7 @@ static int read_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_
 	lock_page(page);
 	vaddr_new = kmap_atomic(page);
 	vaddr &= ~PAGE_MASK;
-	memcpy(opcode, vaddr_new + vaddr, UPROBE_BKPT_INSN_SIZE);
+	memcpy(opcode, vaddr_new + vaddr, UPROBE_SWBP_INSN_SIZE);
 	kunmap_atomic(vaddr_new);
 	unlock_page(page);
 
@@ -317,7 +317,7 @@ static int read_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_
 	return 0;
 }
 
-static int is_bkpt_at_addr(struct mm_struct *mm, unsigned long vaddr)
+static int is_swbp_at_addr(struct mm_struct *mm, unsigned long vaddr)
 {
 	uprobe_opcode_t opcode;
 	int result;
@@ -326,14 +326,14 @@ static int is_bkpt_at_addr(struct mm_struct *mm, unsigned long vaddr)
 	if (result)
 		return result;
 
-	if (is_bkpt_insn(&opcode))
+	if (is_swbp_insn(&opcode))
 		return 1;
 
 	return 0;
 }
 
 /**
- * set_bkpt - store breakpoint at a given address.
+ * set_swbp - store breakpoint at a given address.
  * @auprobe: arch specific probepoint information.
  * @mm: the probed process address space.
  * @vaddr: the virtual address to insert the opcode.
@@ -341,18 +341,18 @@ static int is_bkpt_at_addr(struct mm_struct *mm, unsigned long vaddr)
  * For mm @mm, store the breakpoint instruction at @vaddr.
  * Return 0 (success) or a negative errno.
  */
-int __weak set_bkpt(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr)
+int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr)
 {
 	int result;
 
-	result = is_bkpt_at_addr(mm, vaddr);
+	result = is_swbp_at_addr(mm, vaddr);
 	if (result == 1)
 		return -EEXIST;
 
 	if (result)
 		return result;
 
-	return write_opcode(auprobe, mm, vaddr, UPROBE_BKPT_INSN);
+	return write_opcode(auprobe, mm, vaddr, UPROBE_SWBP_INSN);
 }
 
 /**
@@ -371,7 +371,7 @@ set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long v
 	if (verify) {
 		int result;
 
-		result = is_bkpt_at_addr(mm, vaddr);
+		result = is_swbp_at_addr(mm, vaddr);
 		if (!result)
 			return -EINVAL;
 
@@ -642,7 +642,7 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
 		if (ret)
 			return ret;
 
-		if (is_bkpt_insn((uprobe_opcode_t *)uprobe->arch.insn))
+		if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
 			return -EEXIST;
 
 		ret = arch_uprobes_analyze_insn(&uprobe->arch, mm);
@@ -651,7 +651,7 @@ install_breakpoint(struct uprobe *uprobe, struct mm_struct *mm,
 
 		uprobe->flags |= UPROBE_COPY_INSN;
 	}
-	ret = set_bkpt(&uprobe->arch, mm, addr);
+	ret = set_swbp(&uprobe->arch, mm, addr);
 
 	return ret;
 }