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head/sys/kern/uipc_shm.c
| Show First 20 Lines • Show All 1,061 Lines • ▼ Show 20 Lines | #endif | ||||
| if ((flags & O_ACCMODE) != O_RDONLY && (flags & O_ACCMODE) != O_RDWR) | if ((flags & O_ACCMODE) != O_RDONLY && (flags & O_ACCMODE) != O_RDWR) | ||||
| return (EINVAL); | return (EINVAL); | ||||
| if ((flags & ~(O_ACCMODE | O_CREAT | O_EXCL | O_TRUNC | O_CLOEXEC)) != 0) | if ((flags & ~(O_ACCMODE | O_CREAT | O_EXCL | O_TRUNC | O_CLOEXEC)) != 0) | ||||
| return (EINVAL); | return (EINVAL); | ||||
| largepage = (shmflags & SHM_LARGEPAGE) != 0; | largepage = (shmflags & SHM_LARGEPAGE) != 0; | ||||
| #if !defined(__amd64__) | if (largepage && !PMAP_HAS_LARGEPAGES) | ||||
| if (largepage) | |||||
| return (ENOTTY); | return (ENOTTY); | ||||
| #endif | |||||
| /* | /* | ||||
| * Currently only F_SEAL_SEAL may be set when creating or opening shmfd. | * Currently only F_SEAL_SEAL may be set when creating or opening shmfd. | ||||
| * If the decision is made later to allow additional seals, care must be | * If the decision is made later to allow additional seals, care must be | ||||
| * taken below to ensure that the seals are properly set if the shmfd | * taken below to ensure that the seals are properly set if the shmfd | ||||
| * already existed -- this currently assumes that only F_SEAL_SEAL can | * already existed -- this currently assumes that only F_SEAL_SEAL can | ||||
| * be set and doesn't take further precautions to ensure the validity of | * be set and doesn't take further precautions to ensure the validity of | ||||
| * the seals being added with respect to current mappings. | * the seals being added with respect to current mappings. | ||||
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