kpatch

History

Jessica Yu 0bb5c106ef kmod: restructure kpatch sysfs tree Restructure kpatch's sysfs interface and mirror the sysfs tree after livepatch's sysfs layout. With the current sysfs layout, we cannot distinguish which object a function belongs to, and we cannot tell which modules/objects are patched. Therefore, restructure the kpatch sysfs tree such that module/object information is available. With the new layout, each patched object has its own directory, with each function being a subdirectory of its object. Implement this by embedding a kobject struct within the kpatch_module, kpatch_func, and kpatch_object structs and supplying their ktypes and kobject release methods. Before: /sys/kernel/kpatch └── patches └── <patch_module> ├── checksum ├── enabled └── functions ├── <function> # from <object1> │ ├── new_addr │ └── old_addr ├── <function> # from <object2> │ ├── new_addr │ └── old_addr └─── <function> # from <object3> ├── new_addr └── old_addr After: /sys/kernel/kpatch └── <patch_module> ├── <object1> │ └── <function,sympos> │ ├── new_addr │ └── old_addr ├── <object2> │ └── <function,sympos> │ ├── new_addr │ └── old_addr ├── checksum ├── enabled └── <object3> └── <function,sympos> ├── new_addr └── old_addr		2017-02-27 20:07:16 -08:00
..
Makefile	add module for testing module patching	2014-06-02 20:34:38 -05:00
README	add module for testing module patching	2014-06-02 20:34:38 -05:00
doit-client.sh	kmod: restructure kpatch sysfs tree	2017-02-27 20:07:16 -08:00
doit.sh	testmod/doit.sh: add .kpatch.checksum to test module	2014-09-09 07:52:41 -04:00
patch	add module for testing module patching	2014-06-02 20:34:38 -05:00
testmod_drv.c	add module for testing module patching	2014-06-02 20:34:38 -05:00

README

To test, run ./doit.sh from the current directory.

To test on a remote system, set remote system using REMOTE in doit.sh.
Then run ./doit.sh.