[RFC PATCH 2/4] f2fs: introduce f2fs_fault_info for fault injection

[Sheng Yong <shengyong1@huawei.com>]

This patch introduces a new struct f2fs_fault_info and a global f2fs_fault
to save fault injection status.

Signed-off-by: Sheng Yong <shengyong1@huawei.com>
---
 fs/f2fs/f2fs.h  | 12 ++++++++++++
 fs/f2fs/super.c |  1 +
 2 files changed, 13 insertions(+)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 052f5a8..e18390b 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -48,6 +48,18 @@ enum {
 	FAULT_MAX,
 };
 
+struct f2fs_fault_info {
+	unsigned int inject_rate;
+	atomic_t inject_ops;
+	unsigned int inject_kmalloc;
+	unsigned int inject_page_alloc;
+	unsigned int inject_nid_alloc;
+	unsigned int inject_orphan;
+	unsigned int inject_block;
+	unsigned int inject_dir_depth;
+};
+
+extern struct f2fs_fault_info f2fs_fault;
 extern u32 f2fs_fault_rate;
 extern atomic_t f2fs_ops;
 extern char *fault_name[FAULT_MAX];
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0e54e84..069dc44 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -40,6 +40,7 @@ static struct kmem_cache *f2fs_inode_cachep;
 static struct kset *f2fs_kset;
 
 #ifdef CONFIG_F2FS_FAULT_INJECTION
+struct f2fs_fault_info f2fs_fault;
 u32 f2fs_fault_rate = 0;
 atomic_t f2fs_ops;
 
-- 
2.7.1


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