diff options
| author | Matthew Wilcox <willy@infradead.org> | 2025-08-27 17:52:43 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-10-20 06:30:25 -0700 |
| commit | 7f3779a3ac3e474d043f0a2b77dd6e6bb020c577 (patch) | |
| tree | 303f62fea267c92b6fa9dfa31bb37b96ef4edea8 /include/linux | |
| parent | 211ddde0823f1442e4ad052a2f30f050145ccada (diff) | |
mm/filemap: Add NUMA mempolicy support to filemap_alloc_folio()
Add a mempolicy parameter to filemap_alloc_folio() to enable NUMA-aware
page cache allocations. This will be used by upcoming changes to
support NUMA policies in guest-memfd, where guest_memory need to be
allocated NUMA policy specified by VMM.
All existing users pass NULL maintaining current behavior.
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/20250827175247.83322-4-shivankg@amd.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pagemap.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 09b581c1d878..f1d0610210f7 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -654,9 +654,11 @@ static inline void *detach_page_private(struct page *page) } #ifdef CONFIG_NUMA -struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order); +struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order, + struct mempolicy *policy); #else -static inline struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order) +static inline struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order, + struct mempolicy *policy) { return folio_alloc_noprof(gfp, order); } @@ -667,7 +669,7 @@ static inline struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int o static inline struct page *__page_cache_alloc(gfp_t gfp) { - return &filemap_alloc_folio(gfp, 0)->page; + return &filemap_alloc_folio(gfp, 0, NULL)->page; } static inline gfp_t readahead_gfp_mask(struct address_space *x) |