There are quite a few places in the kernel which implement a hashtable in a very similar way. Instead of having implementations of a hashtable all over the kernel, we can re-use the code. This patch series introduces a very simple hashtable implementation, and modifies three (random) modules to use it. I've limited it to 3 only so that it would be easy to review and modify, and to show that even at this number we already eliminate a big amount of duplicated code. If this basic hashtable looks ok, future code will include: - RCU support - Self locking (list_bl?) - Converting more code to use the hashtable Sasha Levin (4): hashtable: introduce a small and naive hashtable user_ns: use new hashtable implementation mm,ksm: use new hashtable implementation workqueue: use new hashtable implementation include/linux/hashtable.h | 46 ++++++++++++++++++++ include/linux/user_namespace.h | 11 +++-- kernel/user.c | 54 ++++------------------- kernel/user_namespace.c | 4 +- kernel/workqueue.c | 91 ++++++--------------------------------- mm/ksm.c | 29 ++++--------- 6 files changed, 87 insertions(+), 148 deletions(-) create mode 100644 include/linux/hashtable.h -- 1.7.8.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>