On Tue, 18 Jul 2017, Elena Reshetova wrote:
> The below script can be used to detect potential misusage > of atomic_t type and API for reference counting purposes. > Now when we have a dedicated refcount_t type and API with > security protection implemented, people should be using it > instead. > > Currently it still reports many occurences since we are > nowhere near the end of our kernel-wide conversion execrise, > but hopefully after couple of cycles more, the amount of > output would be much more limited. > > Each script result must be analysed manually before any > conversion, since refcount_t might not suit for certain > purposes (for example if an object is not always destroyed > upon refcounter reaching zero, if increments from zero are > allowed in the code etc.) > > As we go further and get less results in output, we will > improve the pattern to detect conversion cases more precisely. The regexps are the best you can do? julia > > Elena Reshetova (1): > Coccinelle: add atomic_as_refcounter script > > scripts/coccinelle/api/atomic_as_refcounter.cocci | 102 > ++++++++++++++++++++++ > 1 file changed, 102 insertions(+) > create mode 100644 scripts/coccinelle/api/atomic_as_refcounter.cocci > > -- > 2.7.4 > >
