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authorThomas Gleixner <tglx@linutronix.de>2016-12-25 11:38:40 +0100
committerThomas Gleixner <tglx@linutronix.de>2016-12-25 17:21:22 +0100
commit2456e855354415bfaeb7badaa14e11b3e02c8466 (patch)
tree6fc81500645174c246c3fdb568cba32aa01960c6 /fs/timerfd.c
parenta5a1d1c2914b5316924c7893eb683a5420ebd3be (diff)
downloadop-kernel-dev-2456e855354415bfaeb7badaa14e11b3e02c8466.zip
op-kernel-dev-2456e855354415bfaeb7badaa14e11b3e02c8466.tar.gz
ktime: Get rid of the union
ktime is a union because the initial implementation stored the time in scalar nanoseconds on 64 bit machine and in a endianess optimized timespec variant for 32bit machines. The Y2038 cleanup removed the timespec variant and switched everything to scalar nanoseconds. The union remained, but become completely pointless. Get rid of the union and just keep ktime_t as simple typedef of type s64. The conversion was done with coccinelle and some manual mopping up. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'fs/timerfd.c')
-rw-r--r--fs/timerfd.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 9ae4abb..fb4407a 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -55,7 +55,7 @@ static inline bool isalarm(struct timerfd_ctx *ctx)
/*
* This gets called when the timer event triggers. We set the "expired"
* flag, but we do not re-arm the timer (in case it's necessary,
- * tintv.tv64 != 0) until the timer is accessed.
+ * tintv != 0) until the timer is accessed.
*/
static void timerfd_triggered(struct timerfd_ctx *ctx)
{
@@ -93,7 +93,7 @@ static enum alarmtimer_restart timerfd_alarmproc(struct alarm *alarm,
*/
void timerfd_clock_was_set(void)
{
- ktime_t moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
+ ktime_t moffs = ktime_mono_to_real(0);
struct timerfd_ctx *ctx;
unsigned long flags;
@@ -102,8 +102,8 @@ void timerfd_clock_was_set(void)
if (!ctx->might_cancel)
continue;
spin_lock_irqsave(&ctx->wqh.lock, flags);
- if (ctx->moffs.tv64 != moffs.tv64) {
- ctx->moffs.tv64 = KTIME_MAX;
+ if (ctx->moffs != moffs) {
+ ctx->moffs = KTIME_MAX;
ctx->ticks++;
wake_up_locked(&ctx->wqh);
}
@@ -124,9 +124,9 @@ static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
static bool timerfd_canceled(struct timerfd_ctx *ctx)
{
- if (!ctx->might_cancel || ctx->moffs.tv64 != KTIME_MAX)
+ if (!ctx->might_cancel || ctx->moffs != KTIME_MAX)
return false;
- ctx->moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
+ ctx->moffs = ktime_mono_to_real(0);
return true;
}
@@ -155,7 +155,7 @@ static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
else
remaining = hrtimer_expires_remaining_adjusted(&ctx->t.tmr);
- return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
+ return remaining < 0 ? ktime_set(0, 0): remaining;
}
static int timerfd_setup(struct timerfd_ctx *ctx, int flags,
@@ -184,7 +184,7 @@ static int timerfd_setup(struct timerfd_ctx *ctx, int flags,
ctx->t.tmr.function = timerfd_tmrproc;
}
- if (texp.tv64 != 0) {
+ if (texp != 0) {
if (isalarm(ctx)) {
if (flags & TFD_TIMER_ABSTIME)
alarm_start(&ctx->t.alarm, texp);
@@ -261,9 +261,9 @@ static ssize_t timerfd_read(struct file *file, char __user *buf, size_t count,
if (ctx->ticks) {
ticks = ctx->ticks;
- if (ctx->expired && ctx->tintv.tv64) {
+ if (ctx->expired && ctx->tintv) {
/*
- * If tintv.tv64 != 0, this is a periodic timer that
+ * If tintv != 0, this is a periodic timer that
* needs to be re-armed. We avoid doing it in the timer
* callback to avoid DoS attacks specifying a very
* short timer period.
@@ -410,7 +410,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
else
hrtimer_init(&ctx->t.tmr, clockid, HRTIMER_MODE_ABS);
- ctx->moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
+ ctx->moffs = ktime_mono_to_real(0);
ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx,
O_RDWR | (flags & TFD_SHARED_FCNTL_FLAGS));
@@ -469,7 +469,7 @@ static int do_timerfd_settime(int ufd, int flags,
* We do not update "ticks" and "expired" since the timer will be
* re-programmed again in the following timerfd_setup() call.
*/
- if (ctx->expired && ctx->tintv.tv64) {
+ if (ctx->expired && ctx->tintv) {
if (isalarm(ctx))
alarm_forward_now(&ctx->t.alarm, ctx->tintv);
else
@@ -499,7 +499,7 @@ static int do_timerfd_gettime(int ufd, struct itimerspec *t)
ctx = f.file->private_data;
spin_lock_irq(&ctx->wqh.lock);
- if (ctx->expired && ctx->tintv.tv64) {
+ if (ctx->expired && ctx->tintv) {
ctx->expired = 0;
if (isalarm(ctx)) {
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