mm: clean up is_device_*_page() definitions
Refactor is_device_{public,private}_page() with is_pci_p2pdma_page() to make them all consistent in depending on their respective config options even when CONFIG_DEV_PAGEMAP_OPS is enabled for other reasons. This allows a little more compile-time optimisation as well as the conceptual and cosmetic cleanup. Link: http://lkml.kernel.org/r/187c2ab27dea70635d375a61b2f2076d26c032b0.1558547956.git.robin.murphy@arm.com Signed-off-by: Robin Murphy <robin.murphy@arm.com> Suggested-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@suse.com> Cc: Oliver O'Halloran <oohall@gmail.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
8aa3c927ec
commit
7588adf8df
|
@ -956,41 +956,28 @@ static inline bool put_devmap_managed_page(struct page *page)
|
|||
return false;
|
||||
}
|
||||
|
||||
static inline bool is_device_private_page(const struct page *page)
|
||||
{
|
||||
return is_zone_device_page(page) &&
|
||||
page->pgmap->type == MEMORY_DEVICE_PRIVATE;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PCI_P2PDMA
|
||||
static inline bool is_pci_p2pdma_page(const struct page *page)
|
||||
{
|
||||
return is_zone_device_page(page) &&
|
||||
page->pgmap->type == MEMORY_DEVICE_PCI_P2PDMA;
|
||||
}
|
||||
#else /* CONFIG_PCI_P2PDMA */
|
||||
static inline bool is_pci_p2pdma_page(const struct page *page)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
#endif /* CONFIG_PCI_P2PDMA */
|
||||
|
||||
#else /* CONFIG_DEV_PAGEMAP_OPS */
|
||||
static inline bool put_devmap_managed_page(struct page *page)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
#endif /* CONFIG_DEV_PAGEMAP_OPS */
|
||||
|
||||
static inline bool is_device_private_page(const struct page *page)
|
||||
{
|
||||
return false;
|
||||
return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
|
||||
IS_ENABLED(CONFIG_DEVICE_PRIVATE) &&
|
||||
is_zone_device_page(page) &&
|
||||
page->pgmap->type == MEMORY_DEVICE_PRIVATE;
|
||||
}
|
||||
|
||||
static inline bool is_pci_p2pdma_page(const struct page *page)
|
||||
{
|
||||
return false;
|
||||
return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&
|
||||
IS_ENABLED(CONFIG_PCI_P2PDMA) &&
|
||||
is_zone_device_page(page) &&
|
||||
page->pgmap->type == MEMORY_DEVICE_PCI_P2PDMA;
|
||||
}
|
||||
#endif /* CONFIG_DEV_PAGEMAP_OPS */
|
||||
|
||||
/* 127: arbitrary random number, small enough to assemble well */
|
||||
#define page_ref_zero_or_close_to_overflow(page) \
|
||||
|
|
Loading…
Reference in a new issue