[PATCH v7 3.2-rc2 16/30] uprobes: Introduce uprobe_task_arch_info structure.

[Srikar Dronamraju <srikar@linux.vnet.ibm.com>]

uprobe_task_arch_info structure helps save and restore architecture
specific artifacts at the probehit/singlestep/original instruction
restore time.

Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 include/linux/uprobes.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 0882223..c1378a9 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -31,6 +31,7 @@ struct vm_area_struct;
 #else
 typedef u8 uprobe_opcode_t;
 struct uprobe_arch_info {};
+struct uprobe_task_arch_info {};	/* arch specific task info */
 #define MAX_UINSN_BYTES 4
 #endif
 
@@ -84,6 +85,7 @@ struct uprobe_task {
 	unsigned long vaddr;
 
 	enum uprobe_task_state state;
+	struct uprobe_task_arch_info tskinfo;
 
 	struct uprobe *active_uprobe;
 };

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