diff options
| author | Matthew Wilcox <willy@infradead.org> | 2025-08-27 17:52:44 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-10-20 06:30:25 -0700 |
| commit | 16a542e22339cd5e73e56a956bbd335c7bd7c08c (patch) | |
| tree | eee18861f047a3e69ac4f2ca0db4c1ff82e7bb05 /include/linux | |
| parent | 7f3779a3ac3e474d043f0a2b77dd6e6bb020c577 (diff) | |
mm/filemap: Extend __filemap_get_folio() to support NUMA memory policies
Extend __filemap_get_folio() to support NUMA memory policies by
renaming the implementation to __filemap_get_folio_mpol() and adding
a mempolicy parameter. The original function becomes a static inline
wrapper that passes NULL for the mempolicy.
This infrastructure will enable future support for NUMA-aware page cache
allocations in guest_memfd memory backend KVM guests.
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Shivank Garg <shivankg@amd.com>
Tested-by: Ashish Kalra <ashish.kalra@amd.com>
Link: https://lore.kernel.org/r/20250827175247.83322-5-shivankg@amd.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pagemap.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index f1d0610210f7..a17fabbc0269 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -755,11 +755,17 @@ static inline fgf_t fgf_set_order(size_t size) } void *filemap_get_entry(struct address_space *mapping, pgoff_t index); -struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index, - fgf_t fgp_flags, gfp_t gfp); +struct folio *__filemap_get_folio_mpol(struct address_space *mapping, + pgoff_t index, fgf_t fgf_flags, gfp_t gfp, struct mempolicy *policy); struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index, fgf_t fgp_flags, gfp_t gfp); +static inline struct folio *__filemap_get_folio(struct address_space *mapping, + pgoff_t index, fgf_t fgf_flags, gfp_t gfp) +{ + return __filemap_get_folio_mpol(mapping, index, fgf_flags, gfp, NULL); +} + /** * write_begin_get_folio - Get folio for write_begin with flags. * @iocb: The kiocb passed from write_begin (may be NULL). |