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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 14:08:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 14:08:26 -0800
commitb1b988a6a035212f5ea205155c49ce449beedee8 (patch)
treeaf28071cdede91fe92471c45718d56add3fafab4 /ipc/sem.c
parentedaed168e135f8ec87b27b567a367cbb041f2243 (diff)
parentcfbe271667b7aba03b403aee916ccd457409d2e8 (diff)
downloadlinux-b1b988a6a035212f5ea205155c49ce449beedee8.tar.bz2
Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull year 2038 updates from Thomas Gleixner: "Another round of changes to make the kernel ready for 2038. After lots of preparatory work this is the first set of syscalls which are 2038 safe: 403 clock_gettime64 404 clock_settime64 405 clock_adjtime64 406 clock_getres_time64 407 clock_nanosleep_time64 408 timer_gettime64 409 timer_settime64 410 timerfd_gettime64 411 timerfd_settime64 412 utimensat_time64 413 pselect6_time64 414 ppoll_time64 416 io_pgetevents_time64 417 recvmmsg_time64 418 mq_timedsend_time64 419 mq_timedreceiv_time64 420 semtimedop_time64 421 rt_sigtimedwait_time64 422 futex_time64 423 sched_rr_get_interval_time64 The syscall numbers are identical all over the architectures" * 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) riscv: Use latest system call ABI checksyscalls: fix up mq_timedreceive and stat exceptions unicore32: Fix __ARCH_WANT_STAT64 definition asm-generic: Make time32 syscall numbers optional asm-generic: Drop getrlimit and setrlimit syscalls from default list 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option compat ABI: use non-compat openat and open_by_handle_at variants y2038: add 64-bit time_t syscalls to all 32-bit architectures y2038: rename old time and utime syscalls y2038: remove struct definition redirects y2038: use time32 syscall names on 32-bit syscalls: remove obsolete __IGNORE_ macros y2038: syscalls: rename y2038 compat syscalls x86/x32: use time64 versions of sigtimedwait and recvmmsg timex: change syscalls to use struct __kernel_timex timex: use __kernel_timex internally sparc64: add custom adjtimex/clock_adjtime functions time: fix sys_timer_settime prototype time: Add struct __kernel_timex time: make adjtime compat handling available for 32 bit ...
Diffstat (limited to 'ipc/sem.c')
-rw-r--r--ipc/sem.c41
1 files changed, 33 insertions, 8 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index 745dc6187e84..80909464acff 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
@@ -2225,7 +2250,7 @@ long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
return do_semtimedop(semid, tsems, nsops, NULL);
}
-COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
+SYSCALL_DEFINE4(semtimedop_time32, int, semid, struct sembuf __user *, tsems,
unsigned int, nsops,
const struct old_timespec32 __user *, timeout)
{