From: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Date: Fri, 7 Nov 2014 18:53:34 +0000 (+0400)
Subject: [FEATURE] 'on the go' US probe
X-Git-Tag: submit/tizen/20151123.110932~81
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d0041ac34f8a20ac55b4236620809a02f267a961;p=kernel%2Fswap-modules.git

[FEATURE] 'on the go' US probe

Change-Id: Ia3501c4ed5a95a3c190dfe38730a8636801eb034
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
---

diff --git a/us_manager/sspt/sspt_proc.c b/us_manager/sspt/sspt_proc.c
index c573e4d..5152925 100644
--- a/us_manager/sspt/sspt_proc.c
+++ b/us_manager/sspt/sspt_proc.c
@@ -268,6 +268,35 @@ struct sspt_file *sspt_proc_find_file(struct sspt_proc *proc,
 	return NULL;
 }
 
+void sspt_proc_install_probe(struct sspt_proc *proc, unsigned long vaddr,
+			     struct probe_info *probe_i)
+{
+	struct vm_area_struct *vma;
+	struct task_struct *task = proc->task;
+	struct mm_struct *mm = task->mm;
+	unsigned long page_vaddr = vaddr & PAGE_MASK;
+
+	vma = find_vma_intersection(mm, page_vaddr, page_vaddr + 1);
+	if (vma && check_vma(vma)) {
+		struct sspt_file *file;
+		struct dentry *dentry = vma->vm_file->f_dentry;
+
+		file = sspt_proc_find_file_or_new(proc, dentry);
+		if (file) {
+			unsigned long addr = vaddr - vma->vm_start;
+			struct sspt_page *page;
+
+			sspt_file_set_mapping(file, vma);
+			sspt_file_add_ip(file, addr, probe_i);
+
+			page = sspt_find_page_mapped(file, page_vaddr);
+			if (page)
+				sspt_register_page(page, file);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(sspt_proc_install_probe);
+
 /**
  * @brief Install probes on the page to monitored process
  *
diff --git a/us_manager/sspt/sspt_proc.h b/us_manager/sspt/sspt_proc.h
index 8659648..9fcee58 100644
--- a/us_manager/sspt/sspt_proc.h
+++ b/us_manager/sspt/sspt_proc.h
@@ -72,6 +72,8 @@ struct sspt_file *sspt_proc_find_file(struct sspt_proc *proc,
 struct sspt_file *sspt_proc_find_file_or_new(struct sspt_proc *proc,
 					     struct dentry *dentry);
 
+void sspt_proc_install_probe(struct sspt_proc *proc, unsigned long vaddr,
+			     struct probe_info *probe_i);
 void sspt_proc_install_page(struct sspt_proc *proc, unsigned long page_addr);
 void sspt_proc_install(struct sspt_proc *proc);
 int sspt_proc_uninstall(struct sspt_proc *proc,