The writepage operation is deprecated as it leads to worse performance
under high memory pressure due to folios being written out in LRU order
rather than sequentially within a file. Use filemap_migrate_folio() to
support dirty folio migration instead of writepage.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/fuse/file.c | 30 +-----------------------------
1 file changed, 1 insertion(+), 29 deletions(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 7f5d857c5692..340ccaafb3f7 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2104,34 +2104,6 @@ static int fuse_writepage_locked(struct page *page)
return error;
}
-static int fuse_writepage(struct page *page, struct writeback_control *wbc)
-{
- struct fuse_conn *fc = get_fuse_conn(page->mapping->host);
- int err;
-
- if (fuse_page_is_writeback(page->mapping->host, page->index)) {
- /*
- * ->writepages() should be called for sync() and friends. We
- * should only get here on direct reclaim and then we are
- * allowed to skip a page which is already in flight
- */
- WARN_ON(wbc->sync_mode == WB_SYNC_ALL);
-
- redirty_page_for_writepage(wbc, page);
- unlock_page(page);
- return 0;
- }
-
- if (wbc->sync_mode == WB_SYNC_NONE &&
- fc->num_background >= fc->congestion_threshold)
- return AOP_WRITEPAGE_ACTIVATE;
-
- err = fuse_writepage_locked(page);
- unlock_page(page);
-
- return err;
-}
-
struct fuse_fill_wb_data {
struct fuse_writepage_args *wpa;
struct fuse_file *ff;
@@ -3347,10 +3319,10 @@ static const struct file_operations fuse_file_operations = {
static const struct address_space_operations fuse_file_aops = {
.read_folio = fuse_read_folio,
.readahead = fuse_readahead,
- .writepage = fuse_writepage,
.writepages = fuse_writepages,
.launder_folio = fuse_launder_folio,
.dirty_folio = filemap_dirty_folio,
+ .migrate_folio = filemap_migrate_folio,
.bmap = fuse_bmap,
.direct_IO = fuse_direct_IO,
.write_begin = fuse_write_begin,
--
2.43.0
