diff options
Diffstat (limited to 'kernel/lockdep.c')
-rw-r--r-- | kernel/lockdep.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 022d2ed7fd8b..3673a3f44d9d 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c | |||
@@ -2260,7 +2260,7 @@ void trace_softirqs_off(unsigned long ip) | |||
2260 | debug_atomic_inc(&redundant_softirqs_off); | 2260 | debug_atomic_inc(&redundant_softirqs_off); |
2261 | } | 2261 | } |
2262 | 2262 | ||
2263 | void lockdep_trace_alloc(gfp_t gfp_mask) | 2263 | static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags) |
2264 | { | 2264 | { |
2265 | struct task_struct *curr = current; | 2265 | struct task_struct *curr = current; |
2266 | 2266 | ||
@@ -2279,12 +2279,29 @@ void lockdep_trace_alloc(gfp_t gfp_mask) | |||
2279 | if (!(gfp_mask & __GFP_FS)) | 2279 | if (!(gfp_mask & __GFP_FS)) |
2280 | return; | 2280 | return; |
2281 | 2281 | ||
2282 | if (DEBUG_LOCKS_WARN_ON(irqs_disabled())) | 2282 | if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))) |
2283 | return; | 2283 | return; |
2284 | 2284 | ||
2285 | mark_held_locks(curr, RECLAIM_FS); | 2285 | mark_held_locks(curr, RECLAIM_FS); |
2286 | } | 2286 | } |
2287 | 2287 | ||
2288 | static void check_flags(unsigned long flags); | ||
2289 | |||
2290 | void lockdep_trace_alloc(gfp_t gfp_mask) | ||
2291 | { | ||
2292 | unsigned long flags; | ||
2293 | |||
2294 | if (unlikely(current->lockdep_recursion)) | ||
2295 | return; | ||
2296 | |||
2297 | raw_local_irq_save(flags); | ||
2298 | check_flags(flags); | ||
2299 | current->lockdep_recursion = 1; | ||
2300 | __lockdep_trace_alloc(gfp_mask, flags); | ||
2301 | current->lockdep_recursion = 0; | ||
2302 | raw_local_irq_restore(flags); | ||
2303 | } | ||
2304 | |||
2288 | static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock) | 2305 | static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock) |
2289 | { | 2306 | { |
2290 | /* | 2307 | /* |