diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/fremap.c | 12 | ||||
| -rw-r--r-- | mm/hugetlb.c | 8 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 6 | ||||
| -rw-r--r-- | mm/mlock.c | 11 | ||||
| -rw-r--r-- | mm/mmap.c | 4 |
5 files changed, 21 insertions, 20 deletions
diff --git a/mm/fremap.c b/mm/fremap.c index 4723ac8d2fc..87da3590c61 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -204,10 +204,8 @@ get_write_lock: unsigned long addr; struct file *file = get_file(vma->vm_file); - vm_flags = vma->vm_flags; - if (!(flags & MAP_NONBLOCK)) - vm_flags |= VM_POPULATE; - addr = mmap_region(file, start, size, vm_flags, pgoff); + addr = mmap_region(file, start, size, + vma->vm_flags, pgoff); fput(file); if (IS_ERR_VALUE(addr)) { err = addr; @@ -226,12 +224,6 @@ get_write_lock: mutex_unlock(&mapping->i_mmap_mutex); } - if (!(flags & MAP_NONBLOCK) && !(vma->vm_flags & VM_POPULATE)) { - if (!has_write_lock) - goto get_write_lock; - vma->vm_flags |= VM_POPULATE; - } - if (vma->vm_flags & VM_LOCKED) { /* * drop PG_Mlocked flag for over-mapped range diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0a0be33bb19..ca9a7c6d7e9 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2124,8 +2124,12 @@ int hugetlb_report_node_meminfo(int nid, char *buf) /* Return the number pages of memory we physically have, in PAGE_SIZE units. */ unsigned long hugetlb_total_pages(void) { - struct hstate *h = &default_hstate; - return h->nr_huge_pages * pages_per_huge_page(h); + struct hstate *h; + unsigned long nr_total_pages = 0; + + for_each_hstate(h) + nr_total_pages += h->nr_huge_pages * pages_per_huge_page(h); + return nr_total_pages; } static int hugetlb_acct_memory(struct hstate *h, long delta) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 9597eec8239..ee376576081 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1779,7 +1779,11 @@ void try_offline_node(int nid) for (i = 0; i < MAX_NR_ZONES; i++) { struct zone *zone = pgdat->node_zones + i; - if (zone->wait_table) + /* + * wait_table may be allocated from boot memory, + * here only free if it's allocated by vmalloc. + */ + if (is_vmalloc_addr(zone->wait_table)) vfree(zone->wait_table); } diff --git a/mm/mlock.c b/mm/mlock.c index 1c5e33fce63..79b7cf7d1bc 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -358,7 +358,7 @@ static int do_mlock(unsigned long start, size_t len, int on) newflags = vma->vm_flags & ~VM_LOCKED; if (on) - newflags |= VM_LOCKED | VM_POPULATE; + newflags |= VM_LOCKED; tmp = vma->vm_end; if (tmp > end) @@ -418,8 +418,7 @@ int __mm_populate(unsigned long start, unsigned long len, int ignore_errors) * range with the first VMA. Also, skip undesirable VMA types. */ nend = min(end, vma->vm_end); - if ((vma->vm_flags & (VM_IO | VM_PFNMAP | VM_POPULATE)) != - VM_POPULATE) + if (vma->vm_flags & (VM_IO | VM_PFNMAP)) continue; if (nstart < vma->vm_start) nstart = vma->vm_start; @@ -492,9 +491,9 @@ static int do_mlockall(int flags) struct vm_area_struct * vma, * prev = NULL; if (flags & MCL_FUTURE) - current->mm->def_flags |= VM_LOCKED | VM_POPULATE; + current->mm->def_flags |= VM_LOCKED; else - current->mm->def_flags &= ~(VM_LOCKED | VM_POPULATE); + current->mm->def_flags &= ~VM_LOCKED; if (flags == MCL_FUTURE) goto out; @@ -503,7 +502,7 @@ static int do_mlockall(int flags) newflags = vma->vm_flags & ~VM_LOCKED; if (flags & MCL_CURRENT) - newflags |= VM_LOCKED | VM_POPULATE; + newflags |= VM_LOCKED; /* Ignore errors */ mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags); diff --git a/mm/mmap.c b/mm/mmap.c index 2664a47cec9..6466699b16c 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1306,7 +1306,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, } addr = mmap_region(file, addr, len, vm_flags, pgoff); - if (!IS_ERR_VALUE(addr) && (vm_flags & VM_POPULATE)) + if (!IS_ERR_VALUE(addr) && + ((vm_flags & VM_LOCKED) || + (flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE)) *populate = len; return addr; } |