From af65936a7a5bb8ec1d05b2a7670f84ca2014628d Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 22 May 2017 17:39:44 -0700 Subject: ubifs: don't bother checking for encryption key in ->mmap() Since only an open file can be mmap'ed, and we only allow open()ing an encrypted file when its key is available, there is no need to check for the key again before permitting each mmap(). Signed-off-by: Eric Biggers Acked-by: Richard Weinberger Signed-off-by: Richard Weinberger --- fs/ubifs/file.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'fs/ubifs') diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index ee3ff4c6bf4a..c1d352842ee2 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1615,15 +1615,6 @@ static const struct vm_operations_struct ubifs_file_vm_ops = { static int ubifs_file_mmap(struct file *file, struct vm_area_struct *vma) { int err; - struct inode *inode = file->f_mapping->host; - - if (ubifs_crypt_is_encrypted(inode)) { - err = fscrypt_get_encryption_info(inode); - if (err) - return -EACCES; - if (!fscrypt_has_encryption_key(inode)) - return -ENOKEY; - } err = generic_file_mmap(file, vma); if (err) -- cgit v1.2.3-58-ga151