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1 | 1 | // SPDX-License-Identifier: GPL-2.0 |
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2 | 2 | #include <linux/bio.h> |
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3 | | -#include <linux/io.h> |
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4 | 3 | #include <linux/export.h> |
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| 4 | +#include <xen/xen.h> |
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5 | 5 | #include <xen/page.h> |
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6 | 6 | |
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| 7 | +/* check if @page can be merged with 'vec1' */ |
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7 | 8 | bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, |
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8 | | - const struct bio_vec *vec2) |
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| 9 | + const struct page *page) |
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9 | 10 | { |
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10 | 11 | #if XEN_PAGE_SIZE == PAGE_SIZE |
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11 | 12 | unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page)); |
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12 | | - unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page)); |
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| 13 | + unsigned long bfn2 = pfn_to_bfn(page_to_pfn(page)); |
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13 | 14 | |
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14 | 15 | return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2; |
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15 | 16 | #else |
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.. | .. |
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20 | 21 | return false; |
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21 | 22 | #endif |
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22 | 23 | } |
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23 | | -EXPORT_SYMBOL(xen_biovec_phys_mergeable); |
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