- Mfsync is not standard interface let's hide it from VEs - Limit number of files in single request.
https://jira.sw.ru/browse/PSBM-59965 https://jira.sw.ru/browse/PSBM-59966 Signed-off-by: Dmitry Monakhov <dmonak...@openvz.org> --- fs/ext4/ioctl.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index cd831d5..9232330 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -783,12 +783,17 @@ resize_out: __u32 __user *usr_fd; int i, err; + if (!ve_is_super(get_exec_env())) + return -ENOTSUPP; if (copy_from_user(&mfsync, (struct ext4_ioc_mfsync_info *)arg, sizeof(mfsync))) return -EFAULT; if (mfsync.size == 0) return 0; + if (mfsync.size > NR_FILE) + return -ENFILE; + usr_fd = (__u32 __user *) (arg + sizeof(__u32)); filpp = kzalloc(mfsync.size * sizeof(*filp), GFP_KERNEL); -- 1.8.3.1 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
