diff options
author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2016-02-15 12:55:03 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2016-02-16 13:44:26 +1100 |
commit | e9ab1a1cafb7911df1550a285f2f733ea5920f55 (patch) | |
tree | 0a63e35cd571c6083440e4e8c3fb02bf23c27a6e /arch/powerpc/perf/hv-24x7.c | |
parent | 178a787502123b01499c5a4617b94bb69ad49dd5 (diff) | |
download | linux-e9ab1a1cafb7911df1550a285f2f733ea5920f55.tar.bz2 |
powerpc: Make vmalloc_to_phys() public
This makes vmalloc_to_phys() public as there will be another user
(KVM in-kernel VFIO acceleration) for it soon. As this new user
can be compiled as a module, this exports the symbol.
As a little optimization, this changes the helper to call
vmalloc_to_pfn() instead of vmalloc_to_page() as the size of the
struct page may not be power-of-two aligned which will make gcc use
multiply instructions instead of shifts.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/perf/hv-24x7.c')
-rw-r--r-- | arch/powerpc/perf/hv-24x7.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index 9f9dfda9ed2c..3b09ecfd0aee 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -493,14 +493,6 @@ static size_t event_to_attr_ct(struct hv_24x7_event_data *event) } } -static unsigned long vmalloc_to_phys(void *v) -{ - struct page *p = vmalloc_to_page(v); - - BUG_ON(!p); - return page_to_phys(p) + offset_in_page(v); -} - /* */ struct event_uniq { struct rb_node node; |