f2fs: support fault_type mount option
Previously, once fault injection is on, by default, all kind of faults
will be injected to f2fs, if we want to trigger single or specified
combined type during the test, we need to configure sysfs entry, it will
be a little inconvenient to integrate sysfs configuring into testsuit,
such as xfstest.
So this patch introduces a new mount option 'fault_type' to assist old
option 'fault_injection', with these two mount options, we can specify
any fault rate/type at mount-time.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 367e979..b04bda8 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -62,6 +62,8 @@
FAULT_MAX,
};
+#define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
+
struct f2fs_fault_info {
atomic_t inject_ops;
unsigned int inject_rate;
@@ -3464,9 +3466,10 @@
}
#ifdef CONFIG_F2FS_FAULT_INJECTION
-extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate);
+extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
+ unsigned int type);
#else
-#define f2fs_build_fault_attr(sbi, rate) do { } while (0)
+#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
#endif
#endif