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Merge tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

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Pull more xen updates from Juergen Gross:
 "Two cleanup patches for Xen related code and (more important) an
  update of MAINTAINERS for Xen, as Boris Ostrovsky decided to step
  down"

* tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: replace xen_remap() with memremap()
  MAINTAINERS: Update Xen maintainership
  xen: switch gnttab_end_foreign_access() to take a struct page pointer
This commit is contained in:
Linus Torvalds
2022-06-04 13:42:53 -07:00
parent 45b2e5ad68 41925b105e
commit 4ccbe91de9
16 changed files with 48 additions and 52 deletions
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3
include/xen/arm/page.h
View File

@@ -109,9 +109,6 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
return __set_phys_to_machine(pfn, mfn);
}
#define xen_remap(cookie, size) ioremap_cache((cookie), (size))
#define xen_unmap(cookie) iounmap((cookie))
bool xen_arch_need_swiotlb(struct device *dev,
phys_addr_t phys,
dma_addr_t dev_addr);

6
include/xen/grant_table.h
View File

@@ -101,10 +101,10 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref);
* Eventually end access through the given grant reference, and once that
* access has been ended, free the given page too. Access will be ended
* immediately iff the grant entry is not in use, otherwise it will happen
* some time later. page may be 0, in which case no freeing will occur.
* some time later. page may be NULL, in which case no freeing will occur.
* Note that the granted page might still be accessed (read or write) by the
* other side after gnttab_end_foreign_access() returns, so even if page was
* specified as 0 it is not allowed to just reuse the page for other
* specified as NULL it is not allowed to just reuse the page for other
* purposes immediately. gnttab_end_foreign_access() will take an additional
* reference to the granted page in this case, which is dropped only after
* the grant is no longer in use.
@@ -112,7 +112,7 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref);
* gnttab_end_foreign_access() are done via alloc_pages_exact() (and freeing
* via free_pages_exact()) in order to avoid high order pages.
*/
void gnttab_end_foreign_access(grant_ref_t ref, unsigned long page);
void gnttab_end_foreign_access(grant_ref_t ref, struct page *page);
/*
* End access through the given grant reference, iff the grant entry is