2 Commits

Author	SHA1	Message	Date
Josh Poimboeuf	f3f39c0587	fix activeness safety check when unpatching ... When unpatching, the activeness safety logic should check for the new function on the stack, not the old one. Fixes #64.	2014-04-23 14:37:35 -05:00
Josh Poimboeuf	bfad3b1880	kmod/core: update API and use hash table ... My apologies for the size of this commit. I combined these two features (updating API and using a hash table) into a single commit because their implementations are tightly coupled and I didn't want to have to add support for the old kpatch_funcs array with the new API just for the sake of splitting up the commit :-) - Update the core module API to get a more clear separation between core module and patch module. This is cleaner and will help our case for getting the core module merged upstream into the kernel. - Convert the old kpatch_funcs array into a hash table. This is so much nicer performance-wise and everything-else-wise than that ugly old array. - Do the incremental patching in stop machine. This ensures that the funcs hash is up to date and we don't miss anything. - Disable preemption in the ftrace handler when accessing the func hash. That way we don't get conflicts with the stop_machine handler updating the hash.	2014-03-18 13:34:15 -05:00