3 Commits (be1b08af61379be23d9975eaab29054e9166b13c)

Author	SHA1	Message	Date
Heiko Carstens	81ffa0415b	[S390] vdso: compile fix ... !CONFIG_SMP: arch/s390/kernel/vdso.c: In function 'vdso_init': arch/s390/kernel/vdso.c:325: error: incompatible type for argument 2 of 'vdso_alloc_per_cpu' Also move the code out of the BUG_ON statement since it won't be executed on !CONFIG_BUG. And that would be a bug. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	16 years ago
Martin Schwidefsky	c742b31c03	[PATCH] fast vdso implementation for CLOCK_THREAD_CPUTIME_ID ... The extract cpu time instruction (ectg) instruction allows the user process to get the current thread cputime without calling into the kernel. The code that uses the instruction needs to switch to the access registers mode to get access to the per-cpu info page that contains the two base values that are needed to calculate the current cputime from the CPU timer with the ectg instruction. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	16 years ago
Martin Schwidefsky	b020632e40	[S390] introduce vdso on s390 ... Add a vdso to speed up gettimeofday and clock_getres/clock_gettime for CLOCK_REALTIME/CLOCK_MONOTONIC. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	16 years ago