X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=fs%2Fhugetlbfs%2Finode.c;h=9b800d97a68771b2299e978ebfdb003476e1c075;hb=5a6fe125950676015f5108fb71b2a67441755003;hp=7d479ce3aceb602c687a7f022a7d3d6c1284de0f;hpb=179475a3b46f86e2d06f83e2312218ac3f0cf3a7;p=firefly-linux-kernel-4.4.55.git

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 7d479ce3aceb..9b800d97a687 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -108,7 +108,8 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 
 	if (hugetlb_reserve_pages(inode,
 				vma->vm_pgoff >> huge_page_order(h),
-				len >> huge_page_shift(h), vma))
+				len >> huge_page_shift(h), vma,
+				vma->vm_flags))
 		goto out;
 
 	ret = 0;
@@ -252,6 +253,7 @@ static ssize_t hugetlbfs_read(struct file *filp, char __user *buf,
 	for (;;) {
 		struct page *page;
 		unsigned long nr, ret;
+		int ra;
 
 		/* nr is the maximum number of bytes to copy from this page */
 		nr = huge_page_size(h);
@@ -274,16 +276,19 @@ static ssize_t hugetlbfs_read(struct file *filp, char __user *buf,
 			 */
 			ret = len < nr ? len : nr;
 			if (clear_user(buf, ret))
-				ret = -EFAULT;
+				ra = -EFAULT;
+			else
+				ra = 0;
 		} else {
 			/*
 			 * We have the page, copy it to user space buffer.
 			 */
-			ret = hugetlbfs_read_actor(page, offset, buf, len, nr);
+			ra = hugetlbfs_read_actor(page, offset, buf, len, nr);
+			ret = ra;
 		}
-		if (ret < 0) {
+		if (ra < 0) {
 			if (retval == 0)
-				retval = ret;
+				retval = ra;
 			if (page)
 				page_cache_release(page);
 			goto out;
@@ -506,7 +511,6 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
 		inode->i_mode = mode;
 		inode->i_uid = uid;
 		inode->i_gid = gid;
-		inode->i_blocks = 0;
 		inode->i_mapping->a_ops = &hugetlbfs_aops;
 		inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
 		inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -944,7 +948,7 @@ static int can_do_hugetlb_shm(void)
 			can_do_mlock());
 }
 
-struct file *hugetlb_file_setup(const char *name, size_t size)
+struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag)
 {
 	int error = -ENOMEM;
 	struct file *file;
@@ -978,7 +982,8 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
 
 	error = -ENOMEM;
 	if (hugetlb_reserve_pages(inode, 0,
-			size >> huge_page_shift(hstate_inode(inode)), NULL))
+			size >> huge_page_shift(hstate_inode(inode)), NULL,
+			acctflag))
 		goto out_inode;
 
 	d_instantiate(dentry, inode);