Commit f9b8404c authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds
Browse files

[PATCH] pi-futex: introduce debug_check_no_locks_freed()



Add debug_check_no_locks_freed(), as a central inline to add
bad-lock-free-debugging functionality to.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6abdce76
......@@ -229,8 +229,8 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
if (PageHighMem(page))
return;
if (!enable)
mutex_debug_check_no_locks_freed(page_address(page),
numpages * PAGE_SIZE);
debug_check_no_locks_freed(page_address(page),
numpages * PAGE_SIZE);
/* the return value is ignored - the calls cannot fail,
* large pages are disabled at boot time.
......
......@@ -1030,13 +1030,19 @@ static inline void vm_stat_account(struct mm_struct *mm,
}
#endif /* CONFIG_PROC_FS */
static inline void
debug_check_no_locks_freed(const void *from, unsigned long len)
{
mutex_debug_check_no_locks_freed(from, len);
}
#ifndef CONFIG_DEBUG_PAGEALLOC
static inline void
kernel_map_pages(struct page *page, int numpages, int enable)
{
if (!PageHighMem(page) && !enable)
mutex_debug_check_no_locks_freed(page_address(page),
numpages * PAGE_SIZE);
debug_check_no_locks_freed(page_address(page),
numpages * PAGE_SIZE);
}
#endif
......
......@@ -446,8 +446,8 @@ static void __free_pages_ok(struct page *page, unsigned int order)
arch_free_page(page, order);
if (!PageHighMem(page))
mutex_debug_check_no_locks_freed(page_address(page),
PAGE_SIZE<<order);
debug_check_no_locks_freed(page_address(page),
PAGE_SIZE<<order);
for (i = 0 ; i < (1 << order) ; ++i)
reserved += free_pages_check(page + i);
......
......@@ -3397,7 +3397,7 @@ void kfree(const void *objp)
local_irq_save(flags);
kfree_debugcheck(objp);
c = virt_to_cache(objp);
mutex_debug_check_no_locks_freed(objp, obj_size(c));
debug_check_no_locks_freed(objp, obj_size(c));
__cache_free(c, (void *)objp);
local_irq_restore(flags);
}
......
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