From: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Date: Tue, 7 May 2013 13:20:28 +0000 (+0400)
Subject: [REFACTOR] new interface at sspt_register_page()
X-Git-Tag: Tizen_SDK_2.3~507
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e4c376fd8d55d752d19b50b67839a8d3f9ba82a8;p=kernel%2Fswap-modules.git

[REFACTOR] new interface at sspt_register_page()

-int sspt_register_page(struct sspt_page *page, struct sspt_file *file,
                        struct task_struct *task)
+int sspt_register_page(struct sspt_page *page, struct sspt_file *file)
---

diff --git a/driver/sspt/sspt_page.c b/driver/sspt/sspt_page.c
index 2daa00a..2fe3bef 100644
--- a/driver/sspt/sspt_page.c
+++ b/driver/sspt/sspt_page.c
@@ -129,9 +129,7 @@ void sspt_set_all_ip_addr(struct sspt_page *page, const struct sspt_file *file)
 	}
 }
 
-int sspt_register_page(struct sspt_page *page,
-		       struct sspt_file *file,
-		       struct task_struct *task)
+int sspt_register_page(struct sspt_page *page, struct sspt_file *file)
 {
 	int err = 0;
 	struct us_ip *ip, *n;
@@ -139,6 +137,8 @@ int sspt_register_page(struct sspt_page *page,
 	spin_lock(&page->lock);
 
 	if (sspt_page_is_install(page)) {
+		struct task_struct *task = page->file->procs->task;
+
 		printk("page %lx in %s task[tgid=%u, pid=%u] already installed\n",
 				page->offset, file->dentry->d_iname, task->tgid, task->pid);
 		goto unlock;
diff --git a/driver/sspt/sspt_page.h b/driver/sspt/sspt_page.h
index 1060791..5c98ace 100644
--- a/driver/sspt/sspt_page.h
+++ b/driver/sspt/sspt_page.h
@@ -74,9 +74,7 @@ static inline void sspt_page_uninstalled(struct sspt_page *page)
 
 void sspt_set_all_ip_addr(struct sspt_page *page, const struct sspt_file *file);
 
-int sspt_register_page(struct sspt_page *page,
-		       struct sspt_file *file,
-		       struct task_struct *task);
+int sspt_register_page(struct sspt_page *page, struct sspt_file *file);
 
 int sspt_unregister_page(struct sspt_page *page,
 			 enum US_FLAGS flag,
diff --git a/driver/us_proc_inst.c b/driver/us_proc_inst.c
index beba07f..43c3180 100644
--- a/driver/us_proc_inst.c
+++ b/driver/us_proc_inst.c
@@ -361,7 +361,7 @@ void install_page_probes(unsigned long page_addr, struct task_struct *task, stru
 
 			page = sspt_find_page_mapped(file, page_addr);
 			if (page) {
-				sspt_register_page(page, file, task);
+				sspt_register_page(page, file);
 			}
 		}
 	}
@@ -379,7 +379,7 @@ static void install_file_probes(struct task_struct *task, struct mm_struct *mm,
 	for (i = 0; i < table_size; ++i) {
 		head = &file->page_probes_table[i];
 		swap_hlist_for_each_entry_rcu(page, node, head, hlist) {
-			sspt_register_page(page, file, task);
+			sspt_register_page(page, file);
 		}
 	}
 }