Re: [gentoo-user] What are common SSDs does and don'ts.

[Nate Eldredge]

> On Mar 23, 2025, at 15:41, Dale <rdalek1...@gmail.com> wrote:
> 
> It looks like /var changes more than root does.  I kinda wish I just
> could run it on the whole m.2 stick and it do its thing regardless of
> mount point.  From the looks of the man page tho, that isn't a option. 

fstrim is a filesystem-level operation, and needs support from the specific fs 
in the kernel (to know which blocks are unused and candidates for trimming, to 
lock them in some fashion so that they remain unused while the trimming is in 
progress, to keep checksums consistent, etc).  Some filesystems don't support 
it at all.  So there's no way it could operate on the level of an entire drive.