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x86, CPA: Add a flag parameter to cpa set_clr()

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Change change_page_attr_set_clr() array parameter to a flag. This helps
following patches which adds an interface to change attr to uc/wb over a
set of pages referred by struct page.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: arjan@infradead.org
Cc: eric@anholt.net
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: airlied@redhat.com
LKML-Reference: <20090319215358.611346000@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
venkatesh.pallipadi@intel.com
2009-03-19 14:51:13 -07:00
committed by Ingo Molnar
parent 7f00a2495b
commit 728c951887
1 changed files with 5 additions and 5 deletions
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10
arch/x86/mm/pageattr.c
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@@ -787,7 +787,7 @@ static inline int cache_attr(pgprot_t attr)
static int change_page_attr_set_clr(unsigned long *addr, int numpages, static int change_page_attr_set_clr(unsigned long *addr, int numpages,
pgprot_t mask_set, pgprot_t mask_clr, pgprot_t mask_set, pgprot_t mask_clr,
int force_split, int array) int force_split, int in_flag)
{ {
struct cpa_data cpa; struct cpa_data cpa;
int ret, cache, checkalias; int ret, cache, checkalias;
@@ -802,7 +802,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
return 0; return 0;
/* Ensure we are PAGE_SIZE aligned */ /* Ensure we are PAGE_SIZE aligned */
if (!array) { if (!(in_flag & CPA_ARRAY)) {
if (*addr & ~PAGE_MASK) { if (*addr & ~PAGE_MASK) {
*addr &= PAGE_MASK; *addr &= PAGE_MASK;
/* /*
@@ -840,7 +840,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
cpa.curpage = 0; cpa.curpage = 0;
cpa.force_split = force_split; cpa.force_split = force_split;
if (array) if (in_flag & CPA_ARRAY)
cpa.flags |= CPA_ARRAY; cpa.flags |= CPA_ARRAY;
/* No alias checking for _NX bit modifications */ /* No alias checking for _NX bit modifications */
@@ -889,14 +889,14 @@ static inline int change_page_attr_set(unsigned long *addr, int numpages,
pgprot_t mask, int array) pgprot_t mask, int array)
{ {
return change_page_attr_set_clr(addr, numpages, mask, __pgprot(0), 0, return change_page_attr_set_clr(addr, numpages, mask, __pgprot(0), 0,
array); (array ? CPA_ARRAY : 0));
} }
static inline int change_page_attr_clear(unsigned long *addr, int numpages, static inline int change_page_attr_clear(unsigned long *addr, int numpages,
pgprot_t mask, int array) pgprot_t mask, int array)
{ {
return change_page_attr_set_clr(addr, numpages, __pgprot(0), mask, 0, return change_page_attr_set_clr(addr, numpages, __pgprot(0), mask, 0,
array); (array ? CPA_ARRAY : 0));
} }
int _set_memory_uc(unsigned long addr, int numpages) int _set_memory_uc(unsigned long addr, int numpages)