bfs: remove writepage implementation

If the filesystem implements migrate_folio and writepages, there is no
need for a writepage implementation.

Link: https://lkml.kernel.org/r/20231215200245.748418-7-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index adc2230079c625e23c65f97d9a79dd7dbb92c47e..a778411574a96ba4c47d4e5a404c4ae3ce2eaa96 100644 (file)
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/mpage.h>
 #include <linux/buffer_head.h>
 #include "bfs.h"
 
@@ -150,9 +151,10 @@ out:
        return err;
 }
 
-static int bfs_writepage(struct page *page, struct writeback_control *wbc)
+static int bfs_writepages(struct address_space *mapping,
+               struct writeback_control *wbc)
 {
-       return block_write_full_page(page, bfs_get_block, wbc);
+       return mpage_writepages(mapping, wbc, bfs_get_block);
 }
 
 static int bfs_read_folio(struct file *file, struct folio *folio)
@@ -190,9 +192,10 @@ const struct address_space_operations bfs_aops = {
        .dirty_folio    = block_dirty_folio,
        .invalidate_folio = block_invalidate_folio,
        .read_folio     = bfs_read_folio,
-       .writepage      = bfs_writepage,
+       .writepages     = bfs_writepages,
        .write_begin    = bfs_write_begin,
        .write_end      = generic_write_end,
+       .migrate_folio  = buffer_migrate_folio,
        .bmap           = bfs_bmap,
 };