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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 19:54:53 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-22 20:01:40 (GMT) |
| commit | ae19ffbadc1b2100285a5b5b3d0a4e0a11390904 (patch) | |
| tree | 3c2086ab67398a019089a47ca3f362a4bc6db74f /arch/x86/mm/pageattr.c | |
| parent | 34e84f39a27d059a3e6ec6e8b94aafa702e6f220 (diff) | |
| parent | 9173a8ef24a6b1b8031507b35b8ffe5f85a87692 (diff) | |
| download | linux-fsl-qoriq-ae19ffbadc1b2100285a5b5b3d0a4e0a11390904.tar.xz | |
Merge branch 'master' into for-linus
Diffstat (limited to 'arch/x86/mm/pageattr.c')
| -rw-r--r-- | arch/x86/mm/pageattr.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 7e600c1..24952fd 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -12,6 +12,7 @@ #include <linux/seq_file.h> #include <linux/debugfs.h> #include <linux/pfn.h> +#include <linux/percpu.h> #include <asm/e820.h> #include <asm/processor.h> @@ -686,7 +687,7 @@ static int cpa_process_alias(struct cpa_data *cpa) { struct cpa_data alias_cpa; unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT); - unsigned long vaddr, remapped; + unsigned long vaddr; int ret; if (cpa->pfn >= max_pfn_mapped) @@ -744,24 +745,6 @@ static int cpa_process_alias(struct cpa_data *cpa) } #endif - /* - * If the PMD page was partially used for per-cpu remapping, - * the recycled area needs to be split and modified. Because - * the area is always proper subset of a PMD page - * cpa->numpages is guaranteed to be 1 for these areas, so - * there's no need to loop over and check for further remaps. - */ - remapped = (unsigned long)pcpu_lpage_remapped((void *)laddr); - if (remapped) { - WARN_ON(cpa->numpages > 1); - alias_cpa = *cpa; - alias_cpa.vaddr = &remapped; - alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); - ret = __change_page_attr_set_clr(&alias_cpa, 0); - if (ret) - return ret; - } - return 0; } @@ -822,6 +805,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, { struct cpa_data cpa; int ret, cache, checkalias; + unsigned long baddr = 0; /* * Check, if we are requested to change a not supported @@ -853,6 +837,11 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, */ WARN_ON_ONCE(1); } + /* + * Save address for cache flush. *addr is modified in the call + * to __change_page_attr_set_clr() below. + */ + baddr = *addr; } /* Must avoid aliasing mappings in the highmem code */ @@ -900,7 +889,7 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages, cpa_flush_array(addr, numpages, cache, cpa.flags, pages); } else - cpa_flush_range(*addr, numpages, cache); + cpa_flush_range(baddr, numpages, cache); } else cpa_flush_all(cache); |