guest_memfd will be using truncate_inode_folio() to remove folios from guest_memfd's filemap. Change-Id: Iab72c6d4138cf19f6efeb38341eabe28ded42fd6 Signed-off-by: Ackerley Tng <ackerleytng@xxxxxxxxxx> --- include/linux/mm.h | 1 + mm/guestmem_hugetlb.c | 2 +- mm/internal.h | 1 - mm/truncate.c | 1 + 4 files changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index e4e73c231ced..74ca6b7d1d43 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2530,6 +2530,7 @@ extern void truncate_pagecache(struct inode *inode, loff_t new); extern void truncate_setsize(struct inode *inode, loff_t newsize); void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to); void truncate_pagecache_range(struct inode *inode, loff_t offset, loff_t end); +int truncate_inode_folio(struct address_space *mapping, struct folio *folio); int generic_error_remove_folio(struct address_space *mapping, struct folio *folio); diff --git a/mm/guestmem_hugetlb.c b/mm/guestmem_hugetlb.c index 5459ef7eb329..ec5a188ca2a7 100644 --- a/mm/guestmem_hugetlb.c +++ b/mm/guestmem_hugetlb.c @@ -4,12 +4,12 @@ * as an allocator for guest_memfd. */ -#include <linux/mm_types.h> #include <linux/guestmem.h> #include <linux/hugetlb.h> #include <linux/hugetlb_cgroup.h> #include <linux/mempolicy.h> #include <linux/mm.h> +#include <linux/mm_types.h> #include <linux/pagemap.h> #include <uapi/linux/guestmem.h> diff --git a/mm/internal.h b/mm/internal.h index 25a29872c634..a1694f030539 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -448,7 +448,6 @@ unsigned find_lock_entries(struct address_space *mapping, pgoff_t *start, unsigned find_get_entries(struct address_space *mapping, pgoff_t *start, pgoff_t end, struct folio_batch *fbatch, pgoff_t *indices); void filemap_free_folio(struct address_space *mapping, struct folio *folio); -int truncate_inode_folio(struct address_space *mapping, struct folio *folio); bool truncate_inode_partial_folio(struct folio *folio, loff_t start, loff_t end); long mapping_evict_folio(struct address_space *mapping, struct folio *folio); diff --git a/mm/truncate.c b/mm/truncate.c index 057e4aa73aa9..4baab1e5d2cf 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -176,6 +176,7 @@ int truncate_inode_folio(struct address_space *mapping, struct folio *folio) filemap_remove_folio(folio); return 0; } +EXPORT_SYMBOL_GPL(truncate_inode_folio); /* * Handle partial folios. The folio may be entirely within the -- 2.49.0.1045.g170613ef41-goog
