Release 4.16 drivers/xen/biomerge.c
// SPDX-License-Identifier: GPL-2.0
#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 bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == 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 | 47 | 63.51% | 1 | 25.00% |
| Julien Grall | 18 | 24.32% | 2 | 50.00% |
| Roger Pau Monné | 9 | 12.16% | 1 | 25.00% |
| Total | 74 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(xen_biovec_phys_mergeable);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jeremy Fitzhardinge | 56 | 60.87% | 1 | 14.29% |
| Julien Grall | 18 | 19.57% | 2 | 28.57% |
| Roger Pau Monné | 9 | 9.78% | 1 | 14.29% |
| Matthew Wilcox | 5 | 5.43% | 1 | 14.29% |
| Stephen Rothwell | 3 | 3.26% | 1 | 14.29% |
| Greg Kroah-Hartman | 1 | 1.09% | 1 | 14.29% |
| Total | 92 | 100.00% | 7 | 100.00% |
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