From: Mathias Krause minipli@grsecurity.net

The leading comment above alloc_inode_sb() is pretty explicit about it:

/* * This must be used for allocating filesystems specific inodes to set * up the inode reclaim context correctly. */

Switch tracefs over to alloc_inode_sb() to make sure inodes are properly linked.

Cc: Ajay Kaher ajay.kaher@broadcom.com Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Mathieu Desnoyers mathieu.desnoyers@efficios.com Cc: Al Viro viro@zeniv.linux.org.uk Cc: stable@vger.kernel.org Link: https://lore.kernel.org/20240807115143.45927-2-minipli@grsecurity.net Fixes: ba37ff75e04b ("eventfs: Implement tracefs_inode_cache") Signed-off-by: Mathias Krause minipli@grsecurity.net Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org --- fs/tracefs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c index 1028ab6d9a74..21a7e51fc3c1 100644 --- a/fs/tracefs/inode.c +++ b/fs/tracefs/inode.c @@ -42,7 +42,7 @@ static struct inode *tracefs_alloc_inode(struct super_block *sb) struct tracefs_inode *ti; unsigned long flags;

- ti = kmem_cache_alloc(tracefs_inode_cachep, GFP_KERNEL); + ti = alloc_inode_sb(sb, tracefs_inode_cachep, GFP_KERNEL); if (!ti) return NULL;