diff options
Diffstat (limited to 'ipc/sem.c')
| -rw-r--r-- | ipc/sem.c | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 745dc6187e84..d1efff3a81bb 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -1634,9 +1634,8 @@ out_up: return err; } -long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg) +static long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg, int version) { - int version; struct ipc_namespace *ns; void __user *p = (void __user *)arg; struct semid64_ds semid64; @@ -1645,7 +1644,6 @@ long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg) if (semid < 0) return -EINVAL; - version = ipc_parse_version(&cmd); ns = current->nsproxy->ipc_ns; switch (cmd) { @@ -1691,9 +1689,23 @@ long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg) SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg) { - return ksys_semctl(semid, semnum, cmd, arg); + return ksys_semctl(semid, semnum, cmd, arg, IPC_64); } +#ifdef CONFIG_ARCH_WANT_IPC_PARSE_VERSION +long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg) +{ + int version = ipc_parse_version(&cmd); + + return ksys_semctl(semid, semnum, cmd, arg, version); +} + +SYSCALL_DEFINE4(old_semctl, int, semid, int, semnum, int, cmd, unsigned long, arg) +{ + return ksys_old_semctl(semid, semnum, cmd, arg); +} +#endif + #ifdef CONFIG_COMPAT struct compat_semid_ds { @@ -1744,12 +1756,11 @@ static int copy_compat_semid_to_user(void __user *buf, struct semid64_ds *in, } } -long compat_ksys_semctl(int semid, int semnum, int cmd, int arg) +static long compat_ksys_semctl(int semid, int semnum, int cmd, int arg, int version) { void __user *p = compat_ptr(arg); struct ipc_namespace *ns; struct semid64_ds semid64; - int version = compat_ipc_parse_version(&cmd); int err; ns = current->nsproxy->ipc_ns; @@ -1792,8 +1803,22 @@ long compat_ksys_semctl(int semid, int semnum, int cmd, int arg) COMPAT_SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, int, arg) { - return compat_ksys_semctl(semid, semnum, cmd, arg); + return compat_ksys_semctl(semid, semnum, cmd, arg, IPC_64); } + +#ifdef CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION +long compat_ksys_old_semctl(int semid, int semnum, int cmd, int arg) +{ + int version = compat_ipc_parse_version(&cmd); + + return compat_ksys_semctl(semid, semnum, cmd, arg, version); +} + +COMPAT_SYSCALL_DEFINE4(old_semctl, int, semid, int, semnum, int, cmd, int, arg) +{ + return compat_ksys_old_semctl(semid, semnum, cmd, arg); +} +#endif #endif /* If the task doesn't already have a undo_list, then allocate one |