From: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
Date: Thu, 5 Sep 2013 12:17:35 +0000 (+0400)
Subject: [IMPROVE] add entry_handler field in struct uretprobe
X-Git-Tag: Tizen_SDK_2.3~292
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c1a9373be30f1549db53644deec729b71a519467;p=kernel%2Fswap-modules.git

[IMPROVE] add entry_handler field in struct uretprobe

Change-Id: Ibebc18ffd531e4a4e4705cf13aa8218eec6e548b
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>
---

diff --git a/uprobe/swap_uprobes.c b/uprobe/swap_uprobes.c
index 7fbbcb9..6146a05 100644
--- a/uprobe/swap_uprobes.c
+++ b/uprobe/swap_uprobes.c
@@ -751,6 +751,9 @@ static int pre_handler_uretprobe(struct kprobe *p, struct pt_regs *regs)
 		ri->rp = rp;
 		ri->task = current;
 
+		if (rp->entry_handler)
+			rp->entry_handler(ri, regs);
+
 		arch_prepare_uretprobe(ri, regs);
 
 		add_urp_inst(ri);
diff --git a/uprobe/swap_uprobes.h b/uprobe/swap_uprobes.h
index 3cd3b73..8883cb4 100644
--- a/uprobe/swap_uprobes.h
+++ b/uprobe/swap_uprobes.h
@@ -64,6 +64,7 @@ typedef int (*uretprobe_handler_t)(struct uretprobe_instance *, struct pt_regs *
 struct uretprobe {
 	struct uprobe up;
 	uretprobe_handler_t handler;
+	uretprobe_handler_t entry_handler;
 	int maxactive;
 	int nmissed;
 	struct hlist_head free_instances;