diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory.c | 6 | ||||
| -rw-r--r-- | mm/page_alloc.c | 5 | ||||
| -rw-r--r-- | mm/slab.c | 4 | ||||
| -rw-r--r-- | mm/slob.c | 2 | ||||
| -rw-r--r-- | mm/slub.c | 1 | ||||
| -rw-r--r-- | mm/vmscan.c | 2 |
6 files changed, 18 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index baa999e87cd2..2032ad2fc34b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1665,9 +1665,10 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, * behaviour that some programs depend on. We mark the "original" * un-COW'ed pages by matching them up with "vma->vm_pgoff". */ - if (addr == vma->vm_start && end == vma->vm_end) + if (addr == vma->vm_start && end == vma->vm_end) { vma->vm_pgoff = pfn; - else if (is_cow_mapping(vma->vm_flags)) + vma->vm_flags |= VM_PFN_AT_MMAP; + } else if (is_cow_mapping(vma->vm_flags)) return -EINVAL; vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP; @@ -1679,6 +1680,7 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, * needed from higher level routine calling unmap_vmas */ vma->vm_flags &= ~(VM_IO | VM_RESERVED | VM_PFNMAP); + vma->vm_flags &= ~VM_PFN_AT_MMAP; return -EINVAL; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5c44ed49ca93..a3803ea8c27d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1479,6 +1479,8 @@ __alloc_pages_internal(gfp_t gfp_mask, unsigned int order, unsigned long did_some_progress; unsigned long pages_reclaimed = 0; + lockdep_trace_alloc(gfp_mask); + might_sleep_if(wait); if (should_fail_alloc_page(gfp_mask, order)) @@ -1578,12 +1580,15 @@ nofail_alloc: */ cpuset_update_task_memory_state(); p->flags |= PF_MEMALLOC; + + lockdep_set_current_reclaim_state(gfp_mask); reclaim_state.reclaimed_slab = 0; p->reclaim_state = &reclaim_state; did_some_progress = try_to_free_pages(zonelist, order, gfp_mask); p->reclaim_state = NULL; + lockdep_clear_current_reclaim_state(); p->flags &= ~PF_MEMALLOC; cond_resched(); diff --git a/mm/slab.c b/mm/slab.c index 4d00855629c4..825c606f691d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3318,6 +3318,8 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, unsigned long save_flags; void *ptr; + lockdep_trace_alloc(flags); + if (slab_should_failslab(cachep, flags)) return NULL; @@ -3394,6 +3396,8 @@ __cache_alloc(struct kmem_cache *cachep, gfp_t flags, void *caller) unsigned long save_flags; void *objp; + lockdep_trace_alloc(flags); + if (slab_should_failslab(cachep, flags)) return NULL; diff --git a/mm/slob.c b/mm/slob.c index 0bfa680a8981..7a3411524dac 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -475,6 +475,8 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node) unsigned int *m; int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN); + lockdep_trace_alloc(gfp); + if (size < PAGE_SIZE - align) { if (!size) return ZERO_SIZE_PTR; diff --git a/mm/slub.c b/mm/slub.c index c65a4edafc33..c4ea9158c9fb 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1590,6 +1590,7 @@ static __always_inline void *slab_alloc(struct kmem_cache *s, unsigned long flags; unsigned int objsize; + lockdep_trace_alloc(gfpflags); might_sleep_if(gfpflags & __GFP_WAIT); if (should_failslab(s->objsize, gfpflags)) diff --git a/mm/vmscan.c b/mm/vmscan.c index 56ddf41149eb..479e46719394 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1965,6 +1965,8 @@ static int kswapd(void *p) }; node_to_cpumask_ptr(cpumask, pgdat->node_id); + lockdep_set_current_reclaim_state(GFP_KERNEL); + if (!cpumask_empty(cpumask)) set_cpus_allowed_ptr(tsk, cpumask); current->reclaim_state = &reclaim_state; |