[RFC PATCH 06/19] mm: hugetlb: Provide hugetlb_filemap_add_folio()
From: Ackerley Tng <hidden>
Date: 2023-06-06 19:05:01
Also in:
kvm, linux-fsdevel, linux-kselftest, lkml, qemu-devel
Subsystem:
hugetlb subsystem, memory management, the rest · Maintainers:
Muchun Song, Oscar Salvador, Andrew Morton, Linus Torvalds
hstate_inode() is hugetlbfs-specific, limiting hugetlb_add_to_page_cache() to hugetlbfs. hugetlb_filemap_add_folio() allows hstate to be specified and further separates hugetlb from hugetlbfs. Signed-off-by: Ackerley Tng <redacted> --- include/linux/hugetlb.h | 2 ++ mm/hugetlb.c | 13 ++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 14df89d1642c..7d49048c5a2a 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h@@ -756,6 +756,8 @@ struct folio *alloc_hugetlb_folio_nodemask(struct hstate *h, int preferred_nid, nodemask_t *nmask, gfp_t gfp_mask); struct folio *alloc_hugetlb_folio_vma(struct hstate *h, struct vm_area_struct *vma, unsigned long address); +int hugetlb_filemap_add_folio(struct address_space *mapping, struct hstate *h, + struct folio *folio, pgoff_t idx); int hugetlb_add_to_page_cache(struct folio *folio, struct address_space *mapping, pgoff_t idx); void restore_reserve_on_error(struct hstate *h, struct vm_area_struct *vma,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 99ab4bbdb2ce..d16c6417b90f 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c@@ -5665,11 +5665,10 @@ static bool hugetlbfs_pagecache_present(struct hstate *h, return present; } -int hugetlb_add_to_page_cache(struct folio *folio, struct address_space *mapping, - pgoff_t idx) +int hugetlb_filemap_add_folio(struct address_space *mapping, struct hstate *h, + struct folio *folio, pgoff_t idx) { struct inode *inode = mapping->host; - struct hstate *h = hstate_inode(inode); int err; __folio_set_locked(folio);
@@ -5693,6 +5692,14 @@ int hugetlb_add_to_page_cache(struct folio *folio, struct address_space *mapping return 0; } +int hugetlb_add_to_page_cache(struct folio *folio, struct address_space *mapping, + pgoff_t idx) +{ + struct hstate *h = hstate_inode(mapping->host); + + return hugetlb_filemap_add_folio(mapping, h, folio, idx); +} + static inline vm_fault_t hugetlb_handle_userfault(struct vm_area_struct *vma, struct address_space *mapping, pgoff_t idx,
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2.41.0.rc0.172.g3f132b7071-goog