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| author | Nick Piggin <npiggin@suse.de> | 2006-10-11 01:21:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-11 11:14:19 -0700 |
| commit | 9858db504caedb2424b9a32744c23f9a81ec1731 (patch) | |
| tree | 516b4735df82feb9b14bea4984769e7ac013373d | |
| parent | dafb13673c463bc2aade4a4819704dde0f5fa37f (diff) | |
| download | op-kernel-dev-9858db504caedb2424b9a32744c23f9a81ec1731.zip op-kernel-dev-9858db504caedb2424b9a32744c23f9a81ec1731.tar.gz | |
[PATCH] mm: locks_freed fix
Move the lock debug checks below the page reserved checks. Also, having
debug_check_no_locks_freed in kernel_map_pages is wrong.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/mm.h | 7 | ||||
| -rw-r--r-- | mm/page_alloc.c | 8 |
2 files changed, 5 insertions, 10 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 2614662..5a6068f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1103,12 +1103,7 @@ static inline void vm_stat_account(struct mm_struct *mm, #ifndef CONFIG_DEBUG_PAGEALLOC static inline void -kernel_map_pages(struct page *page, int numpages, int enable) -{ - if (!PageHighMem(page) && !enable) - debug_check_no_locks_freed(page_address(page), - numpages * PAGE_SIZE); -} +kernel_map_pages(struct page *page, int numpages, int enable) {} #endif extern struct vm_area_struct *get_gate_vma(struct task_struct *tsk); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c5caac2..40db96a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -495,15 +495,13 @@ static void __free_pages_ok(struct page *page, unsigned int order) int i; int reserved = 0; - if (!PageHighMem(page)) - debug_check_no_locks_freed(page_address(page), - PAGE_SIZE<<order); - for (i = 0 ; i < (1 << order) ; ++i) reserved += free_pages_check(page + i); if (reserved) return; + if (!PageHighMem(page)) + debug_check_no_locks_freed(page_address(page),PAGE_SIZE<<order); arch_free_page(page, order); kernel_map_pages(page, 1 << order, 0); @@ -787,6 +785,8 @@ static void fastcall free_hot_cold_page(struct page *page, int cold) if (free_pages_check(page)) return; + if (!PageHighMem(page)) + debug_check_no_locks_freed(page_address(page), PAGE_SIZE); arch_free_page(page, 0); kernel_map_pages(page, 1, 0); |
