CVE-2024-48875 btrfs: don't take dev_replace rwsem on task already holding it

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't take devreplace rwsem on task already holding it Running fstests btrfs/011 with MKFSOPTIONS="-O rst" to force the usage of the RAID stripe-tree, we get the following splat from lockdep: BTRFS info device sdd:...