sizemask 313 fs/signalfd.c size_t, sizemask, int, flags) sizemask 317 fs/signalfd.c if (sizemask != sizeof(sigset_t) || sizemask 324 fs/signalfd.c size_t, sizemask) sizemask 328 fs/signalfd.c if (sizemask != sizeof(sigset_t) || sizemask 500 include/linux/syscalls.h asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); sizemask 1064 include/linux/syscalls.h asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);