Whither btrfsck?

Well, just today I had a disk with a couple of bad sectors, according to the SMART info, which would give me read errors, but I could not tickle with writes to force remapping. Not with the GUI 'disk utility' anyway.

So, I got the data off, reformatted, and let loose a CLI 'fsck -c -c' on its ext2/3/4 ass. This, obscurely enough, invokes 'badblocks' with read-write test (you have to read carefully the e2fsck man page, not just 'man fsck').

After that, the SMART data claims the disk is now fine, with no pending remapping of bad sectors. But, somehow, I get the feeling there's something uncanny about this rigmarole, not totally unlike burning the feathers of a black chicken at midnight of new moon ...