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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-25 13:38:36 +0100 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-25 13:38:55 +0100 |
commit | b020632e40c3ed5e8c0c066d022672907e8401cf (patch) | |
tree | d7f805bd27e8378436fbba7e7457afbd10c22ed8 /arch/s390/include/asm/mmu.h | |
parent | [S390] arch_setup_additional_pages arguments (diff) | |
download | linux-b020632e40c3ed5e8c0c066d022672907e8401cf.tar.xz linux-b020632e40c3ed5e8c0c066d022672907e8401cf.zip |
[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>
Diffstat (limited to 'arch/s390/include/asm/mmu.h')
-rw-r--r-- | arch/s390/include/asm/mmu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h index d2b4ff831477..3b59216e6284 100644 --- a/arch/s390/include/asm/mmu.h +++ b/arch/s390/include/asm/mmu.h @@ -6,6 +6,7 @@ typedef struct { struct list_head pgtable_list; unsigned long asce_bits; unsigned long asce_limit; + unsigned long vdso_base; int noexec; int has_pgste; /* The mmu context has extended page tables */ int alloc_pgste; /* cloned contexts will have extended page tables */ |