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authorDavide Libenzi <davidel@xmailserver.org>2008-02-05 01:27:26 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 12:44:07 -0500
commit4d672e7ac79b5ec5cdc90e450823441e20464691 (patch)
tree66da3aa0bf7f7ac80376a93f17edbb2246b2df06 /arch/mips/kernel
parent5e05ad7d4e3b11f935998882b5d9c3b257137f1b (diff)
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>
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/scall32-o32.S2
-rw-r--r--arch/mips/kernel/scall64-64.S2
-rw-r--r--arch/mips/kernel/scall64-n32.S2
-rw-r--r--arch/mips/kernel/scall64-o32.S2
4 files changed, 4 insertions, 4 deletions
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 82480a1717d8..f798139e888e 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -660,7 +660,7 @@ einval: li v0, -EINVAL
660 sys sys_ioprio_get 2 /* 4315 */ 660 sys sys_ioprio_get 2 /* 4315 */
661 sys sys_utimensat 4 661 sys sys_utimensat 4
662 sys sys_signalfd 3 662 sys sys_signalfd 3
663 sys sys_timerfd 4 663 sys sys_ni_syscall 0
664 sys sys_eventfd 1 664 sys sys_eventfd 1
665 sys sys_fallocate 6 /* 4320 */ 665 sys sys_fallocate 6 /* 4320 */
666 .endm 666 .endm
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index c2c10876da2e..a626be6baea3 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -475,7 +475,7 @@ sys_call_table:
475 PTR sys_ioprio_get 475 PTR sys_ioprio_get
476 PTR sys_utimensat /* 5275 */ 476 PTR sys_utimensat /* 5275 */
477 PTR sys_signalfd 477 PTR sys_signalfd
478 PTR sys_timerfd 478 PTR sys_ni_syscall
479 PTR sys_eventfd 479 PTR sys_eventfd
480 PTR sys_fallocate 480 PTR sys_fallocate
481 .size sys_call_table,.-sys_call_table 481 .size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 01993ec3368b..9d5bcaf1b389 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -401,7 +401,7 @@ EXPORT(sysn32_call_table)
401 PTR sys_ioprio_get 401 PTR sys_ioprio_get
402 PTR compat_sys_utimensat 402 PTR compat_sys_utimensat
403 PTR compat_sys_signalfd /* 5280 */ 403 PTR compat_sys_signalfd /* 5280 */
404 PTR compat_sys_timerfd 404 PTR sys_ni_syscall
405 PTR sys_eventfd 405 PTR sys_eventfd
406 PTR sys_fallocate 406 PTR sys_fallocate
407 .size sysn32_call_table,.-sysn32_call_table 407 .size sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index dd68afce7da5..fd2019c1ec2d 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -523,7 +523,7 @@ sys_call_table:
523 PTR sys_ioprio_get /* 4315 */ 523 PTR sys_ioprio_get /* 4315 */
524 PTR compat_sys_utimensat 524 PTR compat_sys_utimensat
525 PTR compat_sys_signalfd 525 PTR compat_sys_signalfd
526 PTR compat_sys_timerfd 526 PTR sys_ni_syscall
527 PTR sys_eventfd 527 PTR sys_eventfd
528 PTR sys32_fallocate /* 4320 */ 528 PTR sys32_fallocate /* 4320 */
529 .size sys_call_table,.-sys_call_table 529 .size sys_call_table,.-sys_call_table