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Commit bcd55074 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Pull timer core updates from Thomas Gleixner.

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ia64: vsyscall: Add missing paranthesis
  alarmtimer: Don't call rtc_timer_init() when CONFIG_RTC_CLASS=n
  x86: vdso: Put declaration before code
  x86-64: Inline vdso clock_gettime helpers
  x86-64: Simplify and optimize vdso clock_gettime monotonic variants
  kernel-time: fix s/then/than/ spelling errors
  time: remove no_sync_cmos_clock
  time: Avoid scary backtraces when warning of > 11% adj
  alarmtimer: Make sure we initialize the rtctimer
  ntp: Fix leap-second hrtimer livelock
  x86, tsc: Skip refined tsc calibration on systems with reliable TSC
  rtc: Provide flag for rtc devices that don't support UIE
  ia64: vsyscall: Use seqcount instead of seqlock
  x86: vdso: Use seqcount instead of seqlock
  x86: vdso: Remove bogus locking in update_vsyscall_tz()
  time: Remove bogus comments
  time: Fix change_clocksource locking
  time: x86: Fix race switching from vsyscall to non-vsyscall clock
parents 93f37888 646783a3

arch/ia64/kernel/asm-offsets.c

+2 −2
Original line number Diff line number Diff line
@@ -269,8 +269,8 @@ void foo(void) 
	BLANK();



	/* used by fsys_gettimeofday in arch/ia64/kernel/fsys.S */

	DEFINE(IA64_GTOD_LOCK_OFFSET,

		offsetof (struct fsyscall_gtod_data_t, lock));

	DEFINE(IA64_GTOD_SEQ_OFFSET,

	       offsetof (struct fsyscall_gtod_data_t, seq));

	DEFINE(IA64_GTOD_WALL_TIME_OFFSET,

		offsetof (struct fsyscall_gtod_data_t, wall_time));

	DEFINE(IA64_GTOD_MONO_TIME_OFFSET,

arch/ia64/kernel/fsys.S

+1 −1
Original line number Diff line number Diff line
@@ -173,7 +173,7 @@ ENTRY(fsys_set_tid_address) 
	FSYS_RETURN

END(fsys_set_tid_address)



#if IA64_GTOD_LOCK_OFFSET !=0

#if IA64_GTOD_SEQ_OFFSET !=0

#error fsys_gettimeofday incompatible with changes to struct fsyscall_gtod_data_t

#endif

#if IA64_ITC_JITTER_OFFSET !=0

arch/ia64/kernel/fsyscall_gtod_data.h

+1 −1
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ 
 */



struct fsyscall_gtod_data_t {

	seqlock_t	lock;

	seqcount_t	seq;

	struct timespec	wall_time;

	struct timespec monotonic_time;

	cycle_t		clk_mask;

arch/ia64/kernel/time.c

+3 −7
Original line number Diff line number Diff line
@@ -34,9 +34,7 @@ 


static cycle_t itc_get_cycles(struct clocksource *cs);



struct fsyscall_gtod_data_t fsyscall_gtod_data = {

	.lock = __SEQLOCK_UNLOCKED(fsyscall_gtod_data.lock),

};

struct fsyscall_gtod_data_t fsyscall_gtod_data;



struct itc_jitter_data_t itc_jitter_data;
@@ -459,9 +457,7 @@ void update_vsyscall_tz(void) 
void update_vsyscall(struct timespec *wall, struct timespec *wtm,

			struct clocksource *c, u32 mult)

{

        unsigned long flags;



        write_seqlock_irqsave(&fsyscall_gtod_data.lock, flags);

	write_seqcount_begin(&fsyscall_gtod_data.seq);



        /* copy fsyscall clock data */

        fsyscall_gtod_data.clk_mask = c->mask;
@@ -484,6 +480,6 @@ void update_vsyscall(struct timespec *wall, struct timespec *wtm, 
		fsyscall_gtod_data.monotonic_time.tv_sec++;

	}



        write_sequnlock_irqrestore(&fsyscall_gtod_data.lock, flags);

	write_seqcount_end(&fsyscall_gtod_data.seq);

}

arch/x86/include/asm/vgtod.h

+10 −7
Original line number Diff line number Diff line
@@ -5,13 +5,8 @@ 
#include <linux/clocksource.h>



struct vsyscall_gtod_data {

	seqlock_t	lock;

	seqcount_t	seq;



	/* open coded 'struct timespec' */

	time_t		wall_time_sec;

	u32		wall_time_nsec;



	struct timezone sys_tz;

	struct { /* extract of a clocksource struct */

		int vclock_mode;

		cycle_t	cycle_last;
@@ -19,8 +14,16 @@ struct vsyscall_gtod_data { 
		u32	mult;

		u32	shift;

	} clock;

	struct timespec wall_to_monotonic;



	/* open coded 'struct timespec' */

	time_t		wall_time_sec;

	u32		wall_time_nsec;

	u32		monotonic_time_nsec;

	time_t		monotonic_time_sec;



	struct timezone sys_tz;

	struct timespec wall_time_coarse;

	struct timespec monotonic_time_coarse;

};

extern struct vsyscall_gtod_data vsyscall_gtod_data;