[PATCH v13 128/137] xfs: Support THPs

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There is one place which assumes the size of a page; fix it.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/xfs/xfs_aops.c  | 11 ++++++-----
 fs/xfs/xfs_super.c |  3 ++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index cb4e0fcf4c76..9ffbd116592a 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -432,10 +432,11 @@ xfs_discard_page(
 	struct page		*page,
 	loff_t			fileoff)
 {
-	struct inode		*inode = page->mapping->host;
+	struct folio		*folio = page_folio(page);
+	struct inode		*inode = folio->mapping->host;
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
-	unsigned int		pageoff = offset_in_page(fileoff);
+	size_t			pageoff = offset_in_folio(folio, fileoff);
 	xfs_fileoff_t		start_fsb = XFS_B_TO_FSBT(mp, fileoff);
 	xfs_fileoff_t		pageoff_fsb = XFS_B_TO_FSBT(mp, pageoff);
 	int			error;
@@ -445,14 +446,14 @@ xfs_discard_page(
 
 	xfs_alert_ratelimited(mp,
 		"page discard on page "PTR_FMT", inode 0x%llx, offset %llu.",
-			page, ip->i_ino, fileoff);
+			folio, ip->i_ino, fileoff);
 
 	error = xfs_bmap_punch_delalloc_range(ip, start_fsb,
-			i_blocks_per_page(inode, page) - pageoff_fsb);
+			i_blocks_per_folio(inode, folio) - pageoff_fsb);
 	if (error && !XFS_FORCED_SHUTDOWN(mp))
 		xfs_alert(mp, "page discard unable to remove delalloc mapping.");
 out_invalidate:
-	iomap_invalidatepage(page, pageoff, PAGE_SIZE - pageoff);
+	iomap_invalidatepage(&folio->page, pageoff, folio_size(folio) - pageoff);
 }
 
 static const struct iomap_writeback_ops xfs_writeback_ops = {
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 2c9e26a44546..24adea02b887 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1891,7 +1891,8 @@ static struct file_system_type xfs_fs_type = {
 	.init_fs_context	= xfs_init_fs_context,
 	.parameters		= xfs_fs_parameters,
 	.kill_sb		= kill_block_super,
-	.fs_flags		= FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
+	.fs_flags		= FS_REQUIRES_DEV | FS_ALLOW_IDMAP | \
+				  FS_THP_SUPPORT,
 };
 MODULE_ALIAS_FS("xfs");
 
-- 
2.30.2





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