linux-ext4 - [PATCH 03/50] fs: hold an i_obj_count reference in wait_sb

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <e8edf6189d036e2222ed2094cf625d3cf06e0111.1755806649.git.josef@toxicpanda.com>
Date: Thu, 21 Aug 2025 16:18:14 -0400
From: Josef Bacik <josef@...icpanda.com>
To: linux-fsdevel@...r.kernel.org,
	linux-btrfs@...r.kernel.org,
	kernel-team@...com,
	linux-ext4@...r.kernel.org,
	linux-xfs@...r.kernel.org,
	brauner@...nel.org,
	viro@...IV.linux.org.uk
Subject: [PATCH 03/50] fs: hold an i_obj_count reference in wait_sb_inodes

In wait_sb_inodes we need to hold a reference for the inode while we're
waiting on writeback to complete, hold a reference on the inode object
during this operation.

Signed-off-by: Josef Bacik <josef@...icpanda.com>
---
 fs/fs-writeback.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index a6cc3d305b84..001773e6e95c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2704,6 +2704,7 @@ static void wait_sb_inodes(struct super_block *sb)
 			continue;
 		}
 		__iget(inode);
+		iobj_get(inode);
 		spin_unlock(&inode->i_lock);
 		rcu_read_unlock();
 
@@ -2717,6 +2718,7 @@ static void wait_sb_inodes(struct super_block *sb)
 		cond_resched();
 
 		iput(inode);
+		iobj_put(inode);
 
 		rcu_read_lock();
 		spin_lock_irq(&sb->s_inode_wblist_lock);
-- 
2.49.0