From 2c63fead9e372b3b65d1883bb174df6c9820f1dd Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Fri, 29 Apr 2016 15:49:56 -0700 Subject: f2fs: inject kmalloc failure This patch injects kmalloc failure given a fault injection rate. Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/f2fs/super.c') diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 22348791700f..9a56f544da3e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -41,6 +41,11 @@ static struct kset *f2fs_kset; #ifdef CONFIG_F2FS_FAULT_INJECTION u32 f2fs_fault_rate = 0; +atomic_t f2fs_ops; + +char *fault_name[FAULT_MAX] = { + [FAULT_KMALLOC] = "kmalloc", +}; #endif /* f2fs-wide shrinker description */ @@ -447,6 +452,7 @@ static int parse_options(struct super_block *sb, char *options) return -EINVAL; #ifdef CONFIG_F2FS_FAULT_INJECTION f2fs_fault_rate = arg; + atomic_set(&f2fs_ops, 0); #else f2fs_msg(sb, KERN_INFO, "FAULT_INJECTION was not selected"); -- cgit v1.2.3