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ContiguousPTE[12/12] modify sys_shmget/sys_mmap

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Change-Id: Icfbe9fbfa6216735ec20c55da95e5b62a25fdfea
This commit is contained in:
TOIDA,Suguru
2018-11-30 09:18:47 +09:00
committed by Masamichi Takagi
parent 410bf13367
commit 4ba4bbd711
4 changed files with 37 additions and 28 deletions
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16
arch/x86_64/kernel/syscall.c
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@ -1725,16 +1725,14 @@ SYSCALL_DECLARE(shmget)
dkprintf("shmget(%#lx,%#lx,%#x)\n", key, size, shmflg0);
if (shmflg & SHM_HUGETLB) {
switch (shmflg & (0x3F << SHM_HUGE_SHIFT)) {
case 0:
int hugeshift = shmflg & (0x3F << SHM_HUGE_SHIFT);
if (hugeshift == 0) {
shmflg |= SHM_HUGE_2MB; /* default hugepage size */
break;
case SHM_HUGE_2MB:
case SHM_HUGE_1GB:
break;
default:
} else if (hugeshift == SHM_HUGE_2MB ||
hugeshift == SHM_HUGE_1GB) {
/*nop*/
} else {
error = -EINVAL;
goto out;
}