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implement mlockall()/munlockall() for LTP syscall

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NAKAMURA Gou
2015-03-12 16:28:57 +09:00
parent 786ae83380
commit 055769254d
3 changed files with 39 additions and 0 deletions
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31
kernel/syscall.c
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@ -5038,6 +5038,37 @@ out2:
return error;
}
SYSCALL_DECLARE(mlockall)
{
const int flags = ihk_mc_syscall_arg0(ctx);
struct process *proc = cpu_local_var(current);
uid_t euid = geteuid();
if (!flags || (flags & ~(MCL_CURRENT|MCL_FUTURE))) {
kprintf("mlockall(0x%x):invalid flags: EINVAL\n", flags);
return -EINVAL;
}
if (!euid) {
kprintf("mlockall(0x%x):priv user: 0\n", flags);
return 0;
}
if (proc->rlimit[MCK_RLIMIT_MEMLOCK].rlim_cur != 0) {
kprintf("mlockall(0x%x):limits exists: ENOMEM\n", flags);
return -ENOMEM;
}
kprintf("mlockall(0x%x):no lock permitted: EPERM\n", flags);
return -EPERM;
} /* sys_mlockall() */
SYSCALL_DECLARE(munlockall)
{
kprintf("munlockall(): 0\n");
return 0;
} /* sys_munlockall() */
SYSCALL_DECLARE(remap_file_pages)
{
const uintptr_t start0 = ihk_mc_syscall_arg0(ctx);