From: Hristo Venev <hristo@venev.name>
Date: Mon, 4 May 2026 15:54:45 +0000 (+0300)
Subject: ceph: put folios not suitable for writeback
X-Git-Tag: ceph-for-7.1-rc4~3
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=544576f0f05c4a759806acddfaaeb686f14fb4b0;p=ceph-client.git

ceph: put folios not suitable for writeback

The batch holds references to the folios (see `filemap_get_folios`,
`folio_batch_release`), so we need to `folio_put` the folios we remove.

Tested on v6.18.

Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/74156
Signed-off-by: Hristo Venev <hristo@venev.name>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 1454760332ff..0a86f672cc09 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1336,6 +1336,7 @@ void ceph_process_folio_batch(struct address_space *mapping,
 						  ceph_wbc, folio);
 		if (rc == -ENODATA) {
 			folio_unlock(folio);
+			folio_put(folio);
 			ceph_wbc->fbatch.folios[i] = NULL;
 			continue;
 		} else if (rc == -E2BIG) {
@@ -1346,6 +1347,7 @@ void ceph_process_folio_batch(struct address_space *mapping,
 		if (!folio_clear_dirty_for_io(folio)) {
 			doutc(cl, "%p !folio_clear_dirty_for_io\n", folio);
 			folio_unlock(folio);
+			folio_put(folio);
 			ceph_wbc->fbatch.folios[i] = NULL;
 			continue;
 		}