New helper - current_umask()

current->fs->umask is what most of fs_struct users are doing.
Put that into a helper function.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 2f35cccf..54dce78 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -254,7 +254,7 @@
 		return -ENOMEM;
 	}
 
-	mode &= ~current->fs->umask;
+	mode &= ~current_umask();
 	if (oplockEnabled)
 		oplock = REQ_OPLOCK;
 
@@ -479,7 +479,7 @@
 		rc = -ENOMEM;
 	else if (pTcon->unix_ext) {
 		struct cifs_unix_set_info_args args = {
-			.mode	= mode & ~current->fs->umask,
+			.mode	= mode & ~current_umask(),
 			.ctime	= NO_CHANGE_64,
 			.atime	= NO_CHANGE_64,
 			.mtime	= NO_CHANGE_64,
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index a8797cc..f121a80 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1125,7 +1125,7 @@
 			goto mkdir_out;
 		}
 
-		mode &= ~current->fs->umask;
+		mode &= ~current_umask();
 		rc = CIFSPOSIXCreate(xid, pTcon, SMB_O_DIRECTORY | SMB_O_CREAT,
 				mode, NULL /* netfid */, pInfo, &oplock,
 				full_path, cifs_sb->local_nls,
@@ -1204,7 +1204,7 @@
 		if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
 				direntry->d_inode->i_nlink = 2;
 
-		mode &= ~current->fs->umask;
+		mode &= ~current_umask();
 		/* must turn on setgid bit if parent dir has it */
 		if (inode->i_mode & S_ISGID)
 			mode |= S_ISGID;