[PATCH 06/15] mm/truncate: make invalidate_complete_folio2() public

[Jens Axboe <axboe@kernel.dk>]

Make invalidate_complete_folio2() be publicly available, and have it
take a gfp_t mask as well rather than hardcode GFP_KERNEL. The only
caller just passes in GFP_KERNEL, no functional changes in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/pagemap.h | 2 ++
 mm/truncate.c           | 9 +++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 8afacb7520d4..0122b3fbe2ac 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -34,6 +34,8 @@ int kiocb_invalidate_pages(struct kiocb *iocb, size_t count);
 void kiocb_invalidate_post_direct_write(struct kiocb *iocb, size_t count);
 int filemap_invalidate_pages(struct address_space *mapping,
 			     loff_t pos, loff_t end, bool nowait);
+int invalidate_complete_folio2(struct address_space *mapping,
+				struct folio *folio, gfp_t gfp_mask);
 
 int write_inode_now(struct inode *, int sync);
 int filemap_fdatawrite(struct address_space *);
diff --git a/mm/truncate.c b/mm/truncate.c
index 0668cd340a46..e084f7aa9370 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -546,13 +546,13 @@ EXPORT_SYMBOL(invalidate_mapping_pages);
  * shrink_folio_list() has a temp ref on them, or because they're transiently
  * sitting in the folio_add_lru() caches.
  */
-static int invalidate_complete_folio2(struct address_space *mapping,
-					struct folio *folio)
+int invalidate_complete_folio2(struct address_space *mapping,
+				struct folio *folio, gfp_t gfp_mask)
 {
 	if (folio->mapping != mapping)
 		return 0;
 
-	if (!filemap_release_folio(folio, GFP_KERNEL))
+	if (!filemap_release_folio(folio, gfp_mask))
 		return 0;
 
 	spin_lock(&mapping->host->i_lock);
@@ -650,7 +650,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping,
 
 			ret2 = folio_launder(mapping, folio);
 			if (ret2 == 0) {
-				if (!invalidate_complete_folio2(mapping, folio))
+				if (!invalidate_complete_folio2(mapping, folio,
+								GFP_KERNEL))
 					ret2 = -EBUSY;
 			}
 			if (ret2 < 0)
-- 
2.45.2