afs: do not test the return value of folio_start_writeback()

In preparation for removing the return value entirely, stop testing it
in afs.

Link: https://lkml.kernel.org/r/20231108204605.745109-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Steve French <sfrench@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/afs/write.c b/fs/afs/write.c
index 4a16878..57d05d6 100644 (file)
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -559,8 +559,7 @@ static void afs_extend_writeback(struct address_space *mapping,
 
                        if (!folio_clear_dirty_for_io(folio))
                                BUG();
-                       if (folio_start_writeback(folio))
-                               BUG();
+                       folio_start_writeback(folio);
                        afs_folio_start_fscache(caching, folio);
 
                        *_count -= folio_nr_pages(folio);
@@ -595,8 +594,7 @@ static ssize_t afs_write_back_from_locked_folio(struct address_space *mapping,
 
        _enter(",%lx,%llx-%llx", folio_index(folio), start, end);
 
-       if (folio_start_writeback(folio))
-               BUG();
+       folio_start_writeback(folio);
        afs_folio_start_fscache(caching, folio);
 
        count -= folio_nr_pages(folio);