Release 4.10 drivers/xen/biomerge.c
#include <linux/bio.h>
#include <linux/io.h>
#include <linux/export.h>
#include <xen/page.h>
bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
const struct bio_vec *vec2)
{
#if XEN_PAGE_SIZE == PAGE_SIZE
unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));
return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
((bfn1 == bfn2) || ((bfn1+1) == bfn2));
#else
/*
* XXX: Add support for merging bio_vec when using different page
* size in Xen and Linux.
*/
return 0;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jeremy fitzhardinge | jeremy fitzhardinge | 63 | 75.00% | 1 | 33.33% |
| julien grall | julien grall | 21 | 25.00% | 2 | 66.67% |
| Total | 84 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(xen_biovec_phys_mergeable);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jeremy fitzhardinge | jeremy fitzhardinge | 72 | 71.29% | 1 | 20.00% |
| julien grall | julien grall | 21 | 20.79% | 2 | 40.00% |
| matthew wilcox | matthew wilcox | 5 | 4.95% | 1 | 20.00% |
| stephen rothwell | stephen rothwell | 3 | 2.97% | 1 | 20.00% |
| Total | 101 | 100.00% | 5 | 100.00% |
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