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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-09-14 08:19:08 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-14 08:19:08 -0400 |
| commit | 905ec87e93bc9e01b15c60035cd6a50c636cbaef (patch) | |
| tree | 46fd7618d6511611ffc19eb0dd4d7bc6b90a41c2 /mm/nommu.c | |
| parent | 1d6ae775d7a948c9575658eb41184fd2e506c0df (diff) | |
| parent | 2f4ba45a75d6383b4a1201169a808ffea416ffa0 (diff) | |
| download | blackbird-op-linux-905ec87e93bc9e01b15c60035cd6a50c636cbaef.tar.gz blackbird-op-linux-905ec87e93bc9e01b15c60035cd6a50c636cbaef.zip | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index fd4e8df0f02d..064d70442895 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -57,6 +57,11 @@ DECLARE_RWSEM(nommu_vma_sem); struct vm_operations_struct generic_file_vm_ops = { }; +EXPORT_SYMBOL(vmalloc); +EXPORT_SYMBOL(vfree); +EXPORT_SYMBOL(vmalloc_to_page); +EXPORT_SYMBOL(vmalloc_32); + /* * Handle all mappings that got truncated by a "truncate()" * system call. @@ -142,6 +147,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, return(i); } +EXPORT_SYMBOL(get_user_pages); + DEFINE_RWLOCK(vmlist_lock); struct vm_struct *vmlist; @@ -852,7 +859,7 @@ unsigned long do_mmap_pgoff(struct file *file, error_getting_vma: up_write(&nommu_vma_sem); kfree(vml); - printk("Allocation of vml for %lu byte allocation from process %d failed\n", + printk("Allocation of vma for %lu byte allocation from process %d failed\n", len, current->pid); show_free_areas(); return -ENOMEM; @@ -909,7 +916,7 @@ int do_munmap(struct mm_struct *mm, unsigned long addr, size_t len) for (parent = &mm->context.vmlist; *parent; parent = &(*parent)->next) if ((*parent)->vma->vm_start == addr && - (*parent)->vma->vm_end == end) + ((len == 0) || ((*parent)->vma->vm_end == end))) goto found; printk("munmap of non-mmaped memory by process %d (%s): %p\n", @@ -1054,7 +1061,8 @@ struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long to, unsigned long size, pgprot_t prot) { - return -EPERM; + vma->vm_start = vma->vm_pgoff << PAGE_SHIFT; + return 0; } void swap_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) @@ -1073,9 +1081,10 @@ void arch_unmap_area(struct mm_struct *mm, unsigned long addr) void update_mem_hiwater(struct task_struct *tsk) { - unsigned long rss = get_mm_counter(tsk->mm, rss); + unsigned long rss; if (likely(tsk->mm)) { + rss = get_mm_counter(tsk->mm, rss); if (tsk->mm->hiwater_rss < rss) tsk->mm->hiwater_rss = rss; if (tsk->mm->hiwater_vm < tsk->mm->total_vm) |
