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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-04 20:27:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-04 20:27:54 -0700 |
commit | 0bbcce5d1ef3f771a349896f1c7574d20dc6f4bd (patch) | |
tree | 8a26c5f63eac55cbedff506bba22d32f8669fd5c /kernel/time/posix-timers.c | |
parent | 0ef283d4c7808cb264f904de5e29a0b661747fc4 (diff) | |
parent | e45e778f078efaac085e50366fe06d7b83c8b881 (diff) | |
download | linux-0bbcce5d1ef3f771a349896f1c7574d20dc6f4bd.tar.bz2 |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timers and timekeeping updates from Thomas Gleixner:
- Core infrastucture work for Y2038 to address the COMPAT interfaces:
+ Add a new Y2038 safe __kernel_timespec and use it in the core
code
+ Introduce config switches which allow to control the various
compat mechanisms
+ Use the new config switch in the posix timer code to control the
32bit compat syscall implementation.
- Prevent bogus selection of CPU local clocksources which causes an
endless reselection loop
- Remove the extra kthread in the clocksource code which has no value
and just adds another level of indirection
- The usual bunch of trivial updates, cleanups and fixlets all over the
place
- More SPDX conversions
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
clocksource/drivers/mxs_timer: Switch to SPDX identifier
clocksource/drivers/timer-imx-tpm: Switch to SPDX identifier
clocksource/drivers/timer-imx-gpt: Switch to SPDX identifier
clocksource/drivers/timer-imx-gpt: Remove outdated file path
clocksource/drivers/arc_timer: Add comments about locking while read GFRC
clocksource/drivers/mips-gic-timer: Add pr_fmt and reword pr_* messages
clocksource/drivers/sprd: Fix Kconfig dependency
clocksource: Move inline keyword to the beginning of function declarations
timer_list: Remove unused function pointer typedef
timers: Adjust a kernel-doc comment
tick: Prefer a lower rating device only if it's CPU local device
clocksource: Remove kthread
time: Change nanosleep to safe __kernel_* types
time: Change types to new y2038 safe __kernel_* types
time: Fix get_timespec64() for y2038 safe compat interfaces
time: Add new y2038 safe __kernel_timespec
posix-timers: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME
time: Introduce CONFIG_COMPAT_32BIT_TIME
time: Introduce CONFIG_64BIT_TIME in architectures
compat: Enable compat_get/put_timespec64 always
...
Diffstat (limited to 'kernel/time/posix-timers.c')
-rw-r--r-- | kernel/time/posix-timers.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 10b7186d0638..e08ce3f27447 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1040,7 +1040,7 @@ void exit_itimers(struct signal_struct *sig) } SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, - const struct timespec __user *, tp) + const struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 new_tp; @@ -1055,7 +1055,7 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, } SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, - struct timespec __user *,tp) + struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 kernel_tp; @@ -1096,7 +1096,7 @@ SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock, } SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, - struct timespec __user *, tp) + struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 rtn_tp; @@ -1113,7 +1113,7 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, return error; } -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock, struct compat_timespec __user *, tp) @@ -1148,6 +1148,10 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, return err; } +#endif + +#ifdef CONFIG_COMPAT + COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, struct compat_timex __user *, utp) { @@ -1172,6 +1176,10 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, return err; } +#endif + +#ifdef CONFIG_COMPAT_32BIT_TIME + COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, struct compat_timespec __user *, tp) { @@ -1203,8 +1211,8 @@ static int common_nsleep(const clockid_t which_clock, int flags, } SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, - const struct timespec __user *, rqtp, - struct timespec __user *, rmtp) + const struct __kernel_timespec __user *, rqtp, + struct __kernel_timespec __user *, rmtp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 t; @@ -1227,7 +1235,8 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, return kc->nsleep(which_clock, flags, &t); } -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME + COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, struct compat_timespec __user *, rqtp, struct compat_timespec __user *, rmtp) @@ -1252,6 +1261,7 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, return kc->nsleep(which_clock, flags, &t); } + #endif static const struct k_clock clock_realtime = { |