diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/lkdtm_core.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/misc/lkdtm_core.c b/drivers/misc/lkdtm_core.c index 4f9d2f32c88b..fa7335ee08de 100644 --- a/drivers/misc/lkdtm_core.c +++ b/drivers/misc/lkdtm_core.c @@ -51,11 +51,6 @@ #include "lkdtm.h" -#define DEFAULT_COUNT 10 - -static int count = DEFAULT_COUNT; -static DEFINE_SPINLOCK(count_lock); - enum cname { CN_INVALID, CN_INT_HARDWARE_ENTRY, @@ -169,10 +164,13 @@ static struct jprobe lkdtm; static int lkdtm_parse_commandline(void); static void lkdtm_handler(void); +#define DEFAULT_COUNT 10 static char* cpoint_name; static char* cpoint_type; static int cpoint_count = DEFAULT_COUNT; static int recur_count = -1; +static int crash_count = DEFAULT_COUNT; +static DEFINE_SPINLOCK(crash_count_lock); static enum cname cpoint = CN_INVALID; static enum ctype cptype = CT_NONE; @@ -290,9 +288,9 @@ static int lkdtm_parse_commandline(void) if (cpoint_count < 1 || recur_count < 1) return -EINVAL; - spin_lock_irqsave(&count_lock, flags); - count = cpoint_count; - spin_unlock_irqrestore(&count_lock, flags); + spin_lock_irqsave(&crash_count_lock, flags); + crash_count = cpoint_count; + spin_unlock_irqrestore(&crash_count_lock, flags); /* No special parameters */ if (!cpoint_type && !cpoint_name) @@ -447,16 +445,16 @@ static void lkdtm_handler(void) unsigned long flags; bool do_it = false; - spin_lock_irqsave(&count_lock, flags); - count--; + spin_lock_irqsave(&crash_count_lock, flags); + crash_count--; pr_info("Crash point %s of type %s hit, trigger in %d rounds\n", - cp_name_to_str(cpoint), cp_type_to_str(cptype), count); + cp_name_to_str(cpoint), cp_type_to_str(cptype), crash_count); - if (count == 0) { + if (crash_count == 0) { do_it = true; - count = cpoint_count; + crash_count = cpoint_count; } - spin_unlock_irqrestore(&count_lock, flags); + spin_unlock_irqrestore(&crash_count_lock, flags); if (do_it) lkdtm_do_action(cptype); |