From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 9 Mar 2017 23:24:24 +0000 (-0800)
Subject: f2fs: add fault injection on f2fs_truncate
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=14b44d238ce7402a99db30b806e08b3e4eddcdbe;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

f2fs: add fault injection on f2fs_truncate

Inject a fault during f2fs_truncate().

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 b549b531e586..7c9685c4c904 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -50,6 +50,7 @@ enum {
 	FAULT_BLOCK,
 	FAULT_DIR_DEPTH,
 	FAULT_EVICT_INODE,
+	FAULT_TRUNCATE,
 	FAULT_IO,
 	FAULT_CHECKPOINT,
 	FAULT_MAX,
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 300d62015c24..af507585c75b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -620,6 +620,12 @@ int f2fs_truncate(struct inode *inode)
 
 	trace_f2fs_truncate(inode);
 
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
+		f2fs_show_injection_info(FAULT_TRUNCATE);
+		return -EIO;
+	}
+#endif
 	/* we should check inline_data size */
 	if (!f2fs_may_inline_data(inode)) {
 		err = f2fs_convert_inline_inode(inode);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index cfb40d3fd875..17126a2897ad 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -49,6 +49,7 @@ char *fault_name[FAULT_MAX] = {
 	[FAULT_BLOCK]		= "no more block",
 	[FAULT_DIR_DEPTH]	= "too big dir depth",
 	[FAULT_EVICT_INODE]	= "evict_inode fail",
+	[FAULT_TRUNCATE]	= "truncate fail",
 	[FAULT_IO]		= "IO error",
 	[FAULT_CHECKPOINT]	= "checkpoint error",
 };