WSL2-Linux-Kernel/arch/mips
Davide Libenzi 4d672e7ac7 timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:

int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
		    const struct itimerspec *utmr,
		    struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);

The timerfd_create() API creates an un-programmed timerfd fd.  The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.

The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).

The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter.  Otherwise it's a relative time.

The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.

Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface).  Here's a simple test program I used to
exercise the new timerfd APIs:

http://www.xmailserver.org/timerfd-test2.c

[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:07 -08:00
..
au1000 arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
basler/excite [MIPS]: constify function pointer tables 2008-01-29 10:15:03 +00:00
bcm47xx [MIPS] Kill duplicated setup_irq() for cp0 timer 2007-10-19 18:15:58 +01:00
boot [MIPS] checkfiles: Fix "need space after that ','" errors. 2007-10-11 23:46:15 +01:00
cobalt [MIPS] add cpu_wait() to machine_halt() 2008-01-29 10:15:00 +00:00
configs [MIPS] Qemu: Remove platform. 2008-01-29 10:15:02 +00:00
dec [MIPS] time: remove unused mips_timer_state() 2008-01-29 10:15:00 +00:00
emma2rh [MIPS] Kill duplicated setup_irq() for cp0 timer 2007-10-19 18:15:58 +01:00
fw [MIPS] RM: Collected changes 2008-01-29 10:14:59 +00:00
gt64120/wrppmc [MIPS] remove unused mips_machtype 2008-01-29 10:14:55 +00:00
jazz [MIPS] Cleanup pcspeaker platform device registration. 2008-01-29 10:14:57 +00:00
jmr3927 [MIPS] TXx9 watchdog support for rbhma3100,rbhma4200,rbhma4500 2008-01-29 10:14:58 +00:00
kernel timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
lasat [MIPS] Lasat: Convert pvc_sem semaphore to mutex 2008-01-29 10:15:01 +00:00
lemote/lm2e [MIPS] Fulong: don't reinitialize pci_probe_only to it's default value. 2008-01-29 10:14:59 +00:00
lib [MIPS] Eleminate local symbols from the symbol table. 2008-01-29 10:14:59 +00:00
math-emu [MIPS] Compliment va_start() with va_end(). 2007-11-26 17:26:15 +00:00
mips-boards [MIPS] Malta: remaining bits of the board support code cleanup 2008-01-29 10:15:05 +00:00
mipssim [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
mm arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
oprofile [MIPS] Extend performance counter event field. 2008-01-29 10:14:59 +00:00
pci [MIPS] BCM1480: Use constants instead of magic numbers in PCI code. 2008-01-29 10:14:59 +00:00
philips/pnx8550 [MIPS] pnx8xxx: clocksource cleanups 2008-01-29 10:15:01 +00:00
pmc-sierra [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
sgi-ip22 [MIPS] IP28 support 2008-01-29 10:14:58 +00:00
sgi-ip27 arch/mips/: Spelling fixes 2008-02-03 16:54:53 +02:00
sgi-ip32 [MIPS] Fix IP32 breakage 2008-01-07 15:32:03 +00:00
sibyte [MIPS] Remove CONFIG_SIBYTE_PT{1120,1125,SWARM} 2008-01-29 10:14:58 +00:00
sni [MIPS] RM: Collected changes 2008-01-29 10:14:59 +00:00
tx4927 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2008-01-29 22:48:03 +11:00
tx4938 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2008-01-29 22:48:03 +11:00
vr41xx [MIPS] move vr41xx_calculate_clock_frequency() to plat_time_init() 2008-01-29 10:15:00 +00:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2008-02-04 07:58:52 -08:00
Kconfig.debug [MIPS] Kbuild: Use the new cc-cross-prefix feature. 2007-10-22 22:09:01 +01:00
Makefile [MIPS] Qemu: Remove platform. 2008-01-29 10:15:02 +00:00
defconfig [MIPS] Qemu: Remove platform. 2008-01-29 10:15:02 +00:00