Support for a series of patches, i.e. patchset or changeset?

Hi All,

Does anyone know if git has sort of support for a series of patches, i.e.
a patchset or changeset? So whenever we know the SHA1 id of a single
patch/commit, we know the patchset it belongs to. This is normal when
we do big changes and split that into smaller pieces and doing only one
simple thing in a single commit.

This will be especially useful when tracking and cherry-picking changes,
i.e. monitoring on the changes of some specific files, and if a specific
patch is interesting, we may want to apply the whole changeset, not only
that specific one.

Ideas?
- eric