[RFC PATCH 10/10] remove write_through bool

["Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>]

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
 fs/iomap/buffered-io.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 5050adbd4bc8..ec0189dc6747 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -534,7 +534,6 @@ EXPORT_SYMBOL_GPL(iomap_migrate_page);
 struct iomap_write_ctx {
 	struct iomap_ioend *ioend;
 	struct list_head iolist;
-	bool write_through;
 };
 
 static void
@@ -587,7 +586,7 @@ static bool iomap_can_add_to_ioend(struct iomap *iomap,
 }
 
 static struct iomap_ioend *iomap_alloc_ioend(struct inode *inode,
-		struct iomap *iomap, loff_t offset, sector_t sector,
+		const struct iomap *iomap, loff_t offset, sector_t sector,
 		struct writeback_control *wbc)
 {
 	struct iomap_ioend *ioend;
@@ -888,7 +887,7 @@ static bool iomap_write_through(struct iomap_write_ctx *iwc,
 {
 	unsigned int blksize = i_blocksize(inode);
 
-	if (!iwc || !iwc->write_through)
+	if (!iwc)
 		return false;
 	if (folio_test_dirty(folio))
 		return true;
@@ -1078,13 +1077,13 @@ iomap_file_buffered_write(struct kiocb *iocb, struct iov_iter *i,
 	};
 	struct iomap_write_ctx iwc = {
 		.iolist = LIST_HEAD_INIT(iwc.iolist),
-		.write_through = iocb->ki_flags & IOCB_SYNC,
 	};
+	struct iomap_write_ctx *iwcp = iocb->ki_flags & IOCB_SYNC ? &iwc : NULL;
 	struct iomap_ioend *ioend, *next;
 	int ret;
 
 	while ((ret = iomap_iter(&iter, ops)) > 0)
-		iter.processed = iomap_write_iter(&iter, i, &iwc);
+		iter.processed = iomap_write_iter(&iter, i, iwcp);
 
 	list_for_each_entry_safe(ioend, next, &iwc.iolist, io_list) {
 		list_del_init(&ioend->io_list);
-- 
2.34.1