diff options
Diffstat (limited to 'lib/vdso/gettimeofday.c')
| -rw-r--r-- | lib/vdso/gettimeofday.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c index 899850bd6f0b..c01eaafd8041 100644 --- a/lib/vdso/gettimeofday.c +++ b/lib/vdso/gettimeofday.c @@ -140,14 +140,14 @@ static __always_inline int do_hres(const struct vdso_data *vd, clockid_t clk, do { /* - * Open coded to handle VDSO_CLOCKMODE_TIMENS. Time namespace - * enabled tasks have a special VVAR page installed which - * has vd->seq set to 1 and vd->clock_mode set to - * VDSO_CLOCKMODE_TIMENS. For non time namespace affected tasks - * this does not affect performance because if vd->seq is - * odd, i.e. a concurrent update is in progress the extra - * check for vd->clock_mode is just a few extra - * instructions while spin waiting for vd->seq to become + * Open coded function vdso_read_begin() to handle + * VDSO_CLOCKMODE_TIMENS. Time namespace enabled tasks have a + * special VVAR page installed which has vd->seq set to 1 and + * vd->clock_mode set to VDSO_CLOCKMODE_TIMENS. For non time + * namespace affected tasks this does not affect performance + * because if vd->seq is odd, i.e. a concurrent update is in + * progress the extra check for vd->clock_mode is just a few + * extra instructions while spin waiting for vd->seq to become * even again. */ while (unlikely((seq = READ_ONCE(vd->seq)) & 1)) { @@ -223,8 +223,8 @@ static __always_inline int do_coarse(const struct vdso_data *vd, clockid_t clk, do { /* - * Open coded to handle VDSO_CLOCK_TIMENS. See comment in - * do_hres(). + * Open coded function vdso_read_begin() to handle + * VDSO_CLOCK_TIMENS. See comment in do_hres(). */ while ((seq = READ_ONCE(vd->seq)) & 1) { if (IS_ENABLED(CONFIG_TIME_NS) && |