teythoon/gnumach.git/ipc, branch pmm-2015-08-28Personal GNU Mach development repositoryhttps://darnassus.sceen.net/cgit/teythoon/gnumach.git/atom?h=pmm-2015-08-282015-08-28T13:48:04Zkern/slab: directmap update2015-08-28T13:48:04ZRichard Braunrbraun@sceen.net2014-12-10T20:52:40Zurn:sha1:5364d6833486d90338a17aae5151e8feb45688b5
The main impact of the direct physical mapping on the kmem module is the
slab size computation. The page allocator requires the allocation size
to be a power-of-two above the page size since it uses the buddy memory
allocation algorithm.
Custom slab allocation functions are no longer needed since the only
user was the kentry area, which has been removed recently.
The KMEM_CACHE_NOCPUPOOL flag is also no longer needed since CPU pools,
which are allocated from a kmem cache, can now always be allocated out
of the direct physical mapping.
codify locking contracts2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-08-16T00:18:47Zurn:sha1:787a6034170b59d55afe8d0a12cb0904f20cb74d
Conflicts:
vm/vm_page.h
ipc/ipc_mqueue: use a general lock2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-08-20T09:43:56Zurn:sha1:47c58daea504518847167900de3243264054ba0a
* ipc/ipc_mqueue.h (struct ipc_mqueue): Use a general lock. Adapt macros.
ipc: use a general lock for the ipc_port_multiple lock2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-08-17T19:45:31Zurn:sha1:e56c18dce6223bf3c9495830fe010f2cd9d3be0a
* ipc/ipc_port.c (ipc_port_multiple_lock_data): Use a general lock.
* ipc/ipc_port.h (ipc_port_multiple_lock_data): Likewise.
(ipc_port_multiple_{lock_init,lock,unlock}): Adapt accordingly.
kern: use a general lock for the IPC structures2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-07-25T00:29:58Zurn:sha1:d9da5d41510e102983a51f9c9be08a80956b33e4
* ipc/ipc_thread.h (ith_{lock_init,lock,unlock}): Use a general lock.
* kern/task.h (struct task): Use a general lock for `itk_lock_data'.
(itk_{lock_init,lock,unlock}): Use a general lock.
* kern/thread.h (struct thread): Use a general lock for `ith_lock_data'.
yyy more general locks, crashes, maybe b/c interrupt handler2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-07-18T14:55:12Zurn:sha1:6218998e6c0392d988c86407380a841d90e874c8ipc: fix locking issues2015-08-28T13:47:56ZJustus Winter4winter@informatik.uni-hamburg.de2015-08-18T09:32:15Zurn:sha1:0e17ccface304dac65efd86b3c6262afeecac05a
* ipc/ipc_port.h (struct ipc_port): Document locking exception.
* ipc/ipc_port.c (ipc_port_destroy): Avoid accessing `port's fields
without the lock.
(ipc_port_alloc_special): Lock `port'.
* ipc/mach_msg.c (mach_msg_trap): Avoid using
`ipc_port_flag_protected_payload' on unlocked port.
* ipc/ipc_kmsg.c (ipc_kmsg_copyout_header): Likewise.
ipc/space: inline reference counting2015-07-25T02:00:43ZJustus Winter4winter@informatik.uni-hamburg.de2015-07-20T19:16:27Zurn:sha1:6db6bf440bf4187d38484c97eccb0592de5743de
* ipc/ipc_space.h (is_{reference,release}): Use the macro variant.
ipc: use a general lock to protect IPC spaces2015-07-15T13:23:14ZJustus Winter4winter@informatik.uni-hamburg.de2015-07-15T10:40:50Zurn:sha1:7c9b83c90e2acc4f9eb74713c47796a3c0a08800
This fixes a corruption in the radix trees representing the IPC spaces
when memory was tight.
* ipc/ipc_space.h: Use a general lock to protect IPC spaces.
ipc: fix the locking of the IPC entry allocation functions2015-07-15T13:23:14ZJustus Winter4winter@informatik.uni-hamburg.de2015-07-15T13:11:05Zurn:sha1:8a68e0a6f3a62c3e382791774e5feb9506e1f7d8
* ipc/ipc_entry.c (ipc_entry_alloc): Assume the space is write-locked.
(ipc_entry_alloc_name): Likewise.
* ipc/ipc_object.c: Fix the locking around all call sites to the two
functions where the space was not locked before.