mm: write_cache_pages integrity fix

[safe/jmp/linux-2.6] / fs / timerfd.c

diff --git a/fs/timerfd.c b/fs/timerfd.c
index 75d44ef..0862f0e 100644 (file)
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -52,11 +52,9 @@ static enum hrtimer_restart timerfd_tmrproc(struct hrtimer *htmr)
 
 static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
 {
-       ktime_t now, remaining;
-
-       now = ctx->tmr.base->get_time();
-       remaining = ktime_sub(ctx->tmr.expires, now);
+       ktime_t remaining;
 
+       remaining = hrtimer_expires_remaining(&ctx->tmr);
        return remaining.tv64 < 0 ? ktime_set(0, 0): remaining;
 }
 
@@ -74,7 +72,7 @@ static void timerfd_setup(struct timerfd_ctx *ctx, int flags,
        ctx->ticks = 0;
        ctx->tintv = timespec_to_ktime(ktmr->it_interval);
        hrtimer_init(&ctx->tmr, ctx->clockid, htmode);
-       ctx->tmr.expires = texp;
+       hrtimer_set_expires(&ctx->tmr, texp);
        ctx->tmr.function = timerfd_tmrproc;
        if (texp.tv64 != 0)
                hrtimer_start(&ctx->tmr, texp, htmode);
@@ -184,6 +182,10 @@ asmlinkage long sys_timerfd_create(int clockid, int flags)
        int ufd;
        struct timerfd_ctx *ctx;
 
+       /* Check the TFD_* constants for consistency.  */
+       BUILD_BUG_ON(TFD_CLOEXEC != O_CLOEXEC);
+       BUILD_BUG_ON(TFD_NONBLOCK != O_NONBLOCK);
+
        if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK))
                return -EINVAL;
        if (clockid != CLOCK_MONOTONIC &&