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/Linux-v5.4/ipc/
Dshm.c1144 struct shmid64_ds sem64; in ksys_shmctl() local
1173 err = shmctl_stat(ns, shmid, cmd, &sem64); in ksys_shmctl()
1176 if (copy_shmid_to_user(buf, &sem64, version)) in ksys_shmctl()
1181 if (copy_shmid_from_user(&sem64, buf, version)) in ksys_shmctl()
1185 return shmctl_down(ns, shmid, cmd, &sem64); in ksys_shmctl()
1338 struct shmid64_ds sem64; in compat_ksys_shmctl() local
1368 err = shmctl_stat(ns, shmid, cmd, &sem64); in compat_ksys_shmctl()
1371 if (copy_compat_shmid_to_user(uptr, &sem64, version)) in compat_ksys_shmctl()
1376 if (copy_compat_shmid_from_user(&sem64, uptr, version)) in compat_ksys_shmctl()
1380 return shmctl_down(ns, shmid, cmd, &sem64); in compat_ksys_shmctl()