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| author | venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> | 2009-03-20 00:51:13 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-20 12:34:47 +0300 |
| commit | 728c9518873de0bbb92b66daa1943b12e5b9f80f (patch) | |
| tree | cc15bfda861da15e33a9f885e99f58f04d8b92c6 | |
| parent | 7f00a2495bf5b98b097c47be5d6e2d4114ec39bf (diff) | |
| download | linux-728c9518873de0bbb92b66daa1943b12e5b9f80f.tar.xz | |
x86, CPA: Add a flag parameter to cpa set_clr()
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>
| -rw-r--r-- | arch/x86/mm/pageattr.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 1280565670e4..69009afa98c0 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -787,7 +787,7 @@ static inline int cache_attr(pgprot_t attr) static int change_page_attr_set_clr(unsigned long *addr, int numpages, pgprot_t mask_set, pgprot_t mask_clr, - int force_split, int array) + int force_split, int in_flag) { struct cpa_data cpa; int ret, cache, checkalias; @@ -802,7 +802,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, return 0; /* Ensure we are PAGE_SIZE aligned */ - if (!array) { + if (!(in_flag & CPA_ARRAY)) { if (*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.force_split = force_split; - if (array) + if (in_flag & CPA_ARRAY) cpa.flags |= CPA_ARRAY; /* 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) { 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, pgprot_t mask, int array) { 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) |