diff options
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index e9c636f57777..523d9e15b3b0 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1593,9 +1593,15 @@ EXPORT_SYMBOL(folio_wait_private_2_killable); /** * folio_end_writeback - End writeback against a folio. * @folio: The folio. + * + * The folio must actually be under writeback. + * + * Context: May be called from process or interrupt context. */ void folio_end_writeback(struct folio *folio) { + VM_BUG_ON_FOLIO(!folio_test_writeback(folio), folio); + /* * folio_test_clear_reclaim() could be used here but it is an * atomic operation and overkill in this particular case. Failing @@ -1615,8 +1621,7 @@ void folio_end_writeback(struct folio *folio) * reused before the folio_wake(). */ folio_get(folio); - if (!__folio_end_writeback(folio)) - BUG(); + __folio_end_writeback(folio); smp_mb__after_atomic(); folio_wake(folio, PG_writeback); |