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-rw-r--r--mm/page-writeback.c24
1 files changed, 14 insertions, 10 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index c7f40c954217..0b0b7cd81a93 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2920,17 +2920,21 @@ int folio_wait_writeback_killable(struct folio *folio)
EXPORT_SYMBOL_GPL(folio_wait_writeback_killable);
/**
- * wait_for_stable_page() - wait for writeback to finish, if necessary.
- * @page: The page to wait on.
+ * folio_wait_stable() - wait for writeback to finish, if necessary.
+ * @folio: The folio to wait on.
*
- * This function determines if the given page is related to a backing device
- * that requires page contents to be held stable during writeback. If so, then
- * it will wait for any pending writeback to complete.
+ * This function determines if the given folio is related to a backing
+ * device that requires folio contents to be held stable during writeback.
+ * If so, then it will wait for any pending writeback to complete.
+ *
+ * Context: Sleeps. Must be called in process context and with
+ * no spinlocks held. Caller should hold a reference on the folio.
+ * If the folio is not locked, writeback may start again after writeback
+ * has finished.
*/
-void wait_for_stable_page(struct page *page)
+void folio_wait_stable(struct folio *folio)
{
- page = thp_head(page);
- if (page->mapping->host->i_sb->s_iflags & SB_I_STABLE_WRITES)
- wait_on_page_writeback(page);
+ if (folio->mapping->host->i_sb->s_iflags & SB_I_STABLE_WRITES)
+ folio_wait_writeback(folio);
}
-EXPORT_SYMBOL_GPL(wait_for_stable_page);
+EXPORT_SYMBOL_GPL(folio_wait_stable);