From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Wed, 17 Jun 2026 03:14:59 +0000 (+0800)
Subject: erofs: call erofs_exit_ishare() before rcu_barrier()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=289cf458a69ccda4a4aee2b0274d233d415814ca;p=thirdparty%2Flinux.git

erofs: call erofs_exit_ishare() before rcu_barrier()

Ensure all inode free callbacks have completed before
destroying the inode slab cache.

Fixes: 5ef3208e3be5 ("erofs: introduce the page cache share feature")
Reviewed-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 802add6652fda..579443e6acfeb 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -1048,11 +1048,11 @@ shrinker_err:
 static void __exit erofs_module_exit(void)
 {
 	unregister_filesystem(&erofs_fs_type);
+	erofs_exit_ishare();
 
-	/* Ensure all RCU free inodes / pclusters are safe to be destroyed. */
+	/* ensure all delayed rcu free inodes & pclusters are flushed */
 	rcu_barrier();
 
-	erofs_exit_ishare();
 	erofs_exit_sysfs();
 	z_erofs_exit_subsystem();
 	erofs_exit_shrinker();