diff options
Diffstat (limited to 'fs/hugetlbfs/inode.c')
| -rw-r--r-- | fs/hugetlbfs/inode.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 8c1cef3bb677..ab4c3a9d51b8 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -18,6 +18,7 @@ #include <linux/highmem.h> #include <linux/init.h> #include <linux/string.h> +#include <linux/capability.h> #include <linux/backing-dev.h> #include <linux/hugetlb.h> #include <linux/pagevec.h> @@ -100,9 +101,6 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) loff_t len, vma_len; int ret; - if ((vma->vm_flags & (VM_MAYSHARE | VM_WRITE)) == VM_WRITE) - return -EINVAL; - if (vma->vm_pgoff & (HPAGE_SIZE / PAGE_SIZE - 1)) return -EINVAL; @@ -121,7 +119,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) vma_len = (loff_t)(vma->vm_end - vma->vm_start); - down(&inode->i_sem); + mutex_lock(&inode->i_mutex); file_accessed(file); vma->vm_flags |= VM_HUGETLB | VM_RESERVED; vma->vm_ops = &hugetlb_vm_ops; @@ -136,7 +134,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) if (inode->i_size < len) inode->i_size = len; out: - up(&inode->i_sem); + mutex_unlock(&inode->i_mutex); return ret; } |