AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

lockdep: __always_inline more for noinstr

Browse Source 
vmlinux.o: warning: objtool: debug_locks_off()+0xd: call to __debug_locks_off() leaves .noinstr.text section
vmlinux.o: warning: objtool: match_held_lock()+0x6a: call to look_up_lock_class.isra.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: lock_is_held_type()+0x90: call to lockdep_recursion_finish() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200603114052.185201076@infradead.org
This commit is contained in:
Peter Zijlstra 2020-06-03 13:40:21 +02:00 committed by Thomas Gleixner
parent 5ef2279331
commit 6eebad1ad3
2 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/debug_locks.h
View File

@ -12,7 +12,7 @@ extern int debug_locks __read_mostly;
extern int debug_locks_silent __read_mostly; extern int debug_locks_silent __read_mostly;
static inline int __debug_locks_off(void) static __always_inline int __debug_locks_off(void)
{ {
return xchg(&debug_locks, 0); return xchg(&debug_locks, 0);
} }

4
kernel/locking/lockdep.c
View File

@ -393,7 +393,7 @@ void lockdep_init_task(struct task_struct *task)
task->lockdep_recursion = 0; task->lockdep_recursion = 0;
} }
static inline void lockdep_recursion_finish(void) static __always_inline void lockdep_recursion_finish(void)
{ {
if (WARN_ON_ONCE(--current->lockdep_recursion)) if (WARN_ON_ONCE(--current->lockdep_recursion))
current->lockdep_recursion = 0; current->lockdep_recursion = 0;
@ -801,7 +801,7 @@ static int count_matching_names(struct lock_class *new_class)
} }
/* used from NMI context -- must be lockless */ /* used from NMI context -- must be lockless */
static inline struct lock_class * static __always_inline struct lock_class *
look_up_lock_class(const struct lockdep_map *lock, unsigned int subclass) look_up_lock_class(const struct lockdep_map *lock, unsigned int subclass)
{ {
struct lockdep_subclass_key *key; struct lockdep_subclass_key *key;