Commit 707549600c4a for kernel

commit 707549600c4a012ed71c0204a7992a679880bf33
Author: Kent Overstreet <kent.overstreet@linux.dev>
Date:   Sat Mar 29 19:01:09 2025 -0400

    bcachefs: bch2_ioctl_subvolume_destroy() fixes

    bch2_evict_subvolume_inodes() was getting stuck - due to incorrectly
    pruning the dcache.

    Also, fix missing permissions checks.

    Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
    Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/fs-ioctl.c b/fs/bcachefs/fs-ioctl.c
index e3a3230fc652..0273130f18dc 100644
--- a/fs/bcachefs/fs-ioctl.c
+++ b/fs/bcachefs/fs-ioctl.c
@@ -541,10 +541,12 @@ static long bch2_ioctl_subvolume_destroy(struct bch_fs *c, struct file *filp,
 		ret = -ENOENT;
 		goto err;
 	}
-	ret = __bch2_unlink(dir, victim, true);
+
+	ret =   inode_permission(file_mnt_idmap(filp), d_inode(victim), MAY_WRITE) ?:
+		__bch2_unlink(dir, victim, true);
 	if (!ret) {
 		fsnotify_rmdir(dir, victim);
-		d_delete(victim);
+		d_invalidate(victim);
 	}
 err:
 	inode_unlock(dir);