| 1 | 2011-12-12 Userspace RCU 0.6.7 |
| 2 | * Add compat file for test urcu wfs |
| 3 | * Add missing compat file for wfq test |
| 4 | * hlist.h: Add missing stddef.h include for NULL |
| 5 | * call_rcu: Add missing call_rcu_before_fork and |
| 6 | call_rcu_after_fork_parent declarations |
| 7 | * Describe autotools/libtool/automake version dependency |
| 8 | * Remove m4_ifdef for AC_PROG_LIBTOOL (deprecated) |
| 9 | * Support older autotools |
| 10 | * Apply autoupdate to configure.ac |
| 11 | * Fix build for amd64 environment (for FreeBSD 8.2) |
| 12 | * Add missing rcu_dereference_sym_bp |
| 13 | * Install test scripts in the dist tarball |
| 14 | |
| 15 | 2011-11-03 Userspace RCU 0.6.6 |
| 16 | * qsbr vs call_rcu : remove exit assertion |
| 17 | * Rename likely/unlikely to caa_likely/caa_unlikely |
| 18 | * Reinsert missing test_urcu_*.c files (missing in rename) |
| 19 | * rename test_qsbr to test_urcu_qsbr |
| 20 | * urcu-pointer: fix rcu_set_pointer unset return value |
| 21 | * Enhance API.txt documentation, add to Makefile as EXTRA_DIST |
| 22 | |
| 23 | 2011-09-29 Userspace RCU 0.6.5 |
| 24 | * call_rcu: Document call_rcu requirements |
| 25 | * call_rcu: fix error handling of malloc error |
| 26 | * urcu call_rcu: Use RCU read-side protection for per-cpu call_rcu data |
| 27 | * urcu,call_rcu: Cleanup call_rcu_data pointers before use in child |
| 28 | * urcu,call_rcu: avoid create call_rcu_data for child when unneed |
| 29 | * urcu,defer_rcu: Make defer_rcu encoding more compact for marker |
| 30 | * urcu_defer: Use cancellation flag instead of pthread_cancel() |
| 31 | * urcu,call_rcu: protects call_rcu_data_list when remove node |
| 32 | * Create default call rcu data upon per-cpu call-rcu teardown |
| 33 | * powerpc: use __NO_LWSYNC__ check to use appropriate lwsync/sync opcode |
| 34 | * cmm: provide lightweight smp_rmb/smp_wmb on PPC |
| 35 | * atomic: provide seq_cst semantics on powerpc |
| 36 | * avoid leaking crdp for failed path |
| 37 | * Return -EEXIST when the old cpu call_rcu_data has not been removed |
| 38 | * protect writing to per_cpu_call_rcu_data[*] |
| 39 | * wake up default call_rcu thread after we move the leftover callbacks |
| 40 | * avoid memory leak in call_rcu_data_free() |
| 41 | * urcu call_rcu: fix use after free() |
| 42 | * use get_cpu_call_rcu_data() for get_call_rcu_data() |
| 43 | * init maxcpus before use |
| 44 | * call_rcu implementation: add missing static |
| 45 | * Document QSBR interaction with mutexes |
| 46 | * urcu-pointer: implement URCU_FORCE_CAST for C++ compatibility of urcu-pointer.h |
| 47 | * urcu-qsbr: use rcu_thread_offline/rcu_thread_online instead of inlining them |
| 48 | * Pair all_cpu call_rcu create with free |
| 49 | * QSBR: add missing wakeups in synchronize_rcu code |
| 50 | * cmm: do not generate code for smp_rmb/smp_wmb on x86_64 |
| 51 | * cmm: let per-arch files provide cmm_smp_* barriers |
| 52 | * Optimize caa_get_cycles() for PowerPC64 |
| 53 | * lfq/lfs tests: use call_rcu |
| 54 | * list: Add cds_list_first_entry |
| 55 | * rculfstack/queue: define _LGPL_SOURCE around static header include |
| 56 | * Add __rcu annotation (unimplemented) |
| 57 | * Fix incorrect fsf address in header files |
| 58 | * wfstack: push returns prior stack emptiness state |
| 59 | * Make lf stack push return if the stack was empty |
| 60 | * Document caa_container_of |
| 61 | * urcu-bp: do not call munmap for NULL registry at exit |
| 62 | * urcu libraries can directly use the _LGPL_SOURCE wfqueue |
| 63 | * rculfstack: document "push" |
| 64 | * Add runall.sh to tarball |
| 65 | * Fix build order of liburcu-cds-common |
| 66 | * Fix missing check for SYS_membarrier in map header |
| 67 | * urcu-qsbr: avoid useless futex wakeups and burning CPU for long grace periods |
| 68 | * api: reimplement BUILD_BUG_ON in compiler.h |
| 69 | * test api cleanup: remove unused primitives |
| 70 | * put thread offline while waiting for the init flag |
| 71 | * urcu: move private definitions to .c file |
| 72 | * urcu-bp: move private definitions to .c file |
| 73 | * urcu-qsbr: move private definitions to .c file |
| 74 | * rcutorture: fix rcutorture-qsbr |
| 75 | * wfqueue: fix type-incorrect assignment |
| 76 | * Fix tests Makefile EXTRA_DIST to use api.h |
| 77 | * Fix choice of default flavour in urcu/map/urcu.h |
| 78 | * api: remove list/hlist |
| 79 | * api: remove arch-specific files |
| 80 | * api: make api_gcc.h a superset of the other headers |
| 81 | * tests api: remove atomics |
| 82 | * put thread offline while waiting for the init flag |
| 83 | * urcu: move private definitions to .c file |
| 84 | * urcu-bp: move private definitions to .c file |
| 85 | * urcu-qsbr: move private definitions to .c file |
| 86 | * rcutorture: fix rcutorture-qsbr |
| 87 | * wfqueue: fix type-incorrect assignment |
| 88 | * Use caa_ prefix for min() and max() |
| 89 | |
| 90 | 2011-07-21 Userspace RCU 0.6.4 |
| 91 | * uatomic: Fix ARM build errors in uatomic. |
| 92 | * urcu tests: hold mutex across use of custom allocator. |
| 93 | * Portability fixes to support FreeBSD 8.2. |
| 94 | |
| 95 | 2011-06-27 Userspace RCU 0.6.3 |
| 96 | * uatomic: Fix i386 compatibility build errors in uatomic. |
| 97 | |
| 98 | 2011-06-13 Userspace RCU 0.6.2 |
| 99 | * Fix build on powerpc. |
| 100 | |
| 101 | 2011-06-13 Userspace RCU 0.6.1 |
| 102 | * Add missing headers into release tarball: |
| 103 | urcu-call-rcu-impl.h and urcu-defer-impl.h |
| 104 | |
| 105 | 2011-06-10 Userspace RCU 0.6.0 |
| 106 | * Added call_rcu() support, graciously contributed by Paul E. McKenney. |
| 107 | * Added urcu/cds.h and merged all "Concurrent Data Containers" (CDS) |
| 108 | into a single .so: liburcu-cds.so to have a single header/shared |
| 109 | object holding all concurrency-aware data containers. It provides |
| 110 | support for RCU lists, queues and stacks at the moment. |
| 111 | * liburcu 0.6.0 now allows linking a single application with multiple |
| 112 | flavors of RCU. This required a library API change which is |
| 113 | incompatible with older 0.5.x liburcu. The .so version number |
| 114 | is therefore bumped from 0 to 1 (e.g. liburcu.so.1). |
| 115 | * Added "atfork" handling API, documented in README. Only useful for |
| 116 | processes using fork() without following exec(). |
| 117 | * Renaming the following files, keeping the old files (producing a |
| 118 | compiler warning): |
| 119 | urcu/uatomic_arch.h -> urcu/uatomic.h |
| 120 | urcu/urcu-futex.h -> urcu/futex.h |
| 121 | urcu/urcu_ref.h -> urcu/ref.h |
| 122 | |
| 123 | 2011-03-04 Userspace RCU 0.5.4 |
| 124 | * urcu-bp: Update fork() handling |
| 125 | |
| 126 | Introduce |
| 127 | |
| 128 | extern void rcu_bp_before_fork(void); |
| 129 | extern void rcu_bp_after_fork_parent(void); |
| 130 | extern void rcu_bp_after_fork_child(void); |
| 131 | |
| 132 | to handle fork gracefully. These disable signals and hold |
| 133 | the registry mutex across forks. (this flavor of the liburcu |
| 134 | library ("bp" for "bulletproof") is mainly used by UST, the |
| 135 | user-space tracer). |
| 136 | |
| 137 | 2011-03-03 Userspace RCU 0.5.3 |
| 138 | * Add support for older ARM single-CPU architecturess (pre-ARMv7) |
| 139 | (thanks to Jason Wessel from WindRiver). |
| 140 | * Fix ARMv7 cmm_rmb/cmm_wmb primitives (use a dmb barrier). |
| 141 | * Remove leftover list_t type from urcu/list.h (namespace cleanup). |
| 142 | * urcu_defer: handle malloc error value. |
| 143 | * Update README file to describe urcu interaction with fork() when not |
| 144 | * followed |
| 145 | by an exec() system call. |
| 146 | |
| 147 | 2010-11-18 Userspace RCU 0.5.2 |
| 148 | * Fix renaming error introduced in 0.5.0. |
| 149 | |
| 150 | 2010-11-18 Userspace RCU 0.5.1 |
| 151 | * Fix renaming error introduced in 0.5.0. (incomplete fix) |
| 152 | |
| 153 | 2010-11-18 Userspace RCU 0.5.0 |
| 154 | * Version 0.5.0 changes the API presented by memory model, |
| 155 | architecture abstraction and data structure primitives in |
| 156 | headers. The prefixes are, respectively: |
| 157 | - cmm_ : Concurrent Memory Model |
| 158 | - caa_ : Concurrent Architecture Abstraction |
| 159 | - cds_ : Concurrent Data Structures |
| 160 | |
| 161 | 2010-03-04 Userspace RCU 0.4.2 |
| 162 | * Add generic uatomic ops support. |
| 163 | * Bugfix in urcu-bp. (rare garbage collection bug occurring in |
| 164 | multithreaded environment). Only affects urcu-bp users (UST). |
| 165 | |
| 166 | 2010-02-12 Userspace RCU 0.4.1 |
| 167 | * s390: compilation fix. |
| 168 | |
| 169 | 2010-01-30 Userspace RCU 0.4.0 |
| 170 | * API change: SIGURCU -> SIGRCU |
| 171 | * API changes: standardize on rcu_ prefix. |
| 172 | * API change: urcu_init -> rcu_init. |
| 173 | * urcu/config.h options renamed to CONFIG_RCU_HAVE_FENCE, |
| 174 | CONFIG_RCU_HAVE_FUTEX, CONFIG_RCU_SMP, CONFIG_RCU_COMPAT_ARCH. |
| 175 | ((moving from URCU -> RCU). |
| 176 | * library names changes: liburcu becomes the "default" version, using |
| 177 | sys_membarrier() when available, and using liburcu-mb as a |
| 178 | fallback. |
| 179 | * The signal-based liburcu is renamed from liburcu to |
| 180 | liburcu-signal. People previously using the signal-based |
| 181 | "liburcu" will automatically be moved to the "default" liburcu |
| 182 | version. |
| 183 | |
| 184 | 2009-11-16 Userspace RCU 0.3.1 |
| 185 | * Add support for sparcv9 32-bit build. |
| 186 | * Update build system to use --host instead of --target. |
| 187 | |
| 188 | 2009-11-03 Userspace RCU 0.3.0 |
| 189 | * API change for the "deferred work" interface. |
| 190 | |
| 191 | 2009-10-14 Userspace RCU 0.2.3 |
| 192 | * Move to autotools. |
| 193 | * Automated architecture detection, with i386 fallback. |
| 194 | * Detect if NR_futex is on the system, fallback on portable |
| 195 | alternatives. |
| 196 | * Add configure mode for UP-only systems. |
| 197 | |
| 198 | 2009-10-02 Userspace RCU 0.2.2 |
| 199 | * Phases out rcu_publish_content() api. |
| 200 | * Adds type checking to urcu-pointer.h pointer exchange primitives. |
| 201 | |
| 202 | 2009-10-02 Userspace RCU 0.2.1 |
| 203 | * small header dependency fix for rculist.h. |
| 204 | * new "liburcu-bp.so" : "Bulletproof RCU", made especially for |
| 205 | the UST userspace tracer. It's a library that sacrifices a bit |
| 206 | of read-side performance for automatically monitoring thread |
| 207 | creation/removal. See README for details. |
| 208 | |
| 209 | 2009-10-01 Userspace RCU 0.2 |
| 210 | * Clarify usage of rcu_cmpxchg_pointer, rcu_xchg_pointer, |
| 211 | rcu_set_pointer. |
| 212 | |
| 213 | 2009-09-29 Userspace RCU 0.1 |
| 214 | * Initial release. |