| 1 | 2012-08-27 Userspace RCU 0.7.4 |
| 2 | * rculfhash API documentation: document destroy RCU read-lock constraint |
| 3 | * Fix: rculfhash should be offline while waiting for resize to complete |
| 4 | * Add missing entry to gitignore |
| 5 | * urcu: move busy-wait code and name it ___cds_wfq_node_sync_next() |
| 6 | * urcu: fix compat_futex_noasync() |
| 7 | * urcu: add hint to DEFINE_URCU_TLS() for compound types |
| 8 | * Fix: CAA_BUILD_BUG_ON should refer to CAA_BUILD_BUG_ON_ZERO |
| 9 | * Add MIPS support |
| 10 | * Compatibility: remove bash-ismsm from test scripts |
| 11 | * Fix inappropriate lib behavior: don't call exit() |
| 12 | * Fix: re-enable compatibility with autoconf < 2.64 |
| 13 | * Fix c99 compatibility: use __asm__ and __volatile__ in public headers |
| 14 | * Fix c99 compatibility: use __typeof__ instead of typeof in public headers |
| 15 | * warning fix: tests urcutorture for NetBSD 5 |
| 16 | |
| 17 | 2012-06-01 Userspace RCU 0.7.3 |
| 18 | * Fix tests: make dist lib dependency |
| 19 | * Update README for OS supported, tests dependency |
| 20 | * Add CodingStyle to tarball |
| 21 | * Add coding style document |
| 22 | * Test fix: test_perthreadlock uninitialized mutex |
| 23 | * tests: support FreeBSD short "time" args |
| 24 | * freebsd 8.2 fix: define MAP_ANONYMOUS for compatibility |
| 25 | |
| 26 | 2012-05-24 Userspace RCU 0.7.2 |
| 27 | * Fix library compatibility |
| 28 | |
| 29 | 2012-05-24 Userspace RCU 0.7.1 |
| 30 | * fix: uatomic_set return value compile fix for non-x86 arch. |
| 31 | |
| 32 | 2012-05-21 Userspace RCU 0.7.0 |
| 33 | * Cleanup: header comments coding style |
| 34 | * Document uatomic operations |
| 35 | * Update return value of "set" operations |
| 36 | * Fix mremap wrapper for NetBSD 5 |
| 37 | * Use urcu/tls-compat.h |
| 38 | * Implement urcu/tls-compat.h |
| 39 | * Add TLS detection m4 macro |
| 40 | * document concurrent data structures |
| 41 | * documentation: refer to rcu-api.txt |
| 42 | * Move API.txt to doc/rcu-api.txt, install in system doc/ |
| 43 | * rculfhash: document implied memory barriers |
| 44 | * rculfhash: Ensure future-proof memory barrier semantic consistency |
| 45 | * API cleanup: use "uatomic_*" in cmm_smp_mb__ API |
| 46 | * uatomic: add memory barrier API for and/or/add/sub/inc/sub |
| 47 | * rculfhash: add runhash.sh test script |
| 48 | * rculfhash tests: add missing check |
| 49 | * rculfhash: fix: race between replace and del operations |
| 50 | * rculfhash: replace unneeded rcu_dereference by CMM_LOAD_SHARED |
| 51 | * rculfhash: use do {} while (0) for dbg_printf() |
| 52 | * rculfhash: cleanup typo |
| 53 | * rculfhash: update API comments |
| 54 | * rculfhash: update comments in implementation |
| 55 | * rculfhash tests: add long hash chains tests |
| 56 | * rculfhash tests: add uniqueness test |
| 57 | * rculfhash test: print test name |
| 58 | * rculfhash: stress requirement in documentation |
| 59 | * rculfhash: fix typo |
| 60 | * rculfhash tests: use array of callbacks to modularize |
| 61 | * rculfhash tests: modularize tests |
| 62 | * rculfhash: document ordering guarantees |
| 63 | * rculfhash: document linearizability guarantees |
| 64 | * rculfhash: update removal comment |
| 65 | * Add missing files to .gitignore |
| 66 | * Fix out-of-tree build |
| 67 | * rculfhash: check malloc NULL pointer |
| 68 | * Fix uatomic sign cast |
| 69 | * Remove unused jhash.h file |
| 70 | * Fix: use known license text, fix incorrect FSF address |
| 71 | * Fix: add missing sched.h include in rculfhash.c |
| 72 | * Allow tests to run on architectures without per-cpu call_rcu support |
| 73 | * Hash table test: FreeBSD compatibility fix |
| 74 | * tests: define _GNU_SOURCE instead of __USE_GNU |
| 75 | * RCU lock-free hash table: implement cds_lfht_is_node_deleted() |
| 76 | * Define _GNU_SOURCE to access CPU_ZERO() macro in uClibc |
| 77 | * Install ChangeLog and README into system's doc |
| 78 | * Fix AC_LANG_SOURCE usage: only takes one parameter |
| 79 | * Fix autoconf futex check |
| 80 | * configure.ac: Use AC_LANG_SOURCE for if else macros |
| 81 | * Refresh autoconf files |
| 82 | * Update gitignore |
| 83 | * rculfhash: add comment about hash seed randomness within test program |
| 84 | * readme: state correct GCC dependency for ARM |
| 85 | * rculfhash: remove an invocation of bit_reverse_ulong() when adding |
| 86 | * rculfhash: remove unneeded conversion |
| 87 | * rculfhash: remove unneeded clear_flag() |
| 88 | * cds_lfht_replace: add checks for old/new node hash/value match |
| 89 | * rculfhash: use node instead of iter argument for deletion |
| 90 | * rculfhash: number of logically removed nodes should not appear in API |
| 91 | * Document that flags could be represented on 2 bits |
| 92 | * Add missing REMOVAL_OWNER_FLAG comment to cds_lfht_node comment |
| 93 | * _cds_lfht_del is not used for buckets anymore, remove parameter |
| 94 | * rculfhash: Relax atomicity guarantees required by removal operation |
| 95 | * remove unneeded "return;" |
| 96 | * simplify the deletion for bucket node |
| 97 | * Remove unneeded code |
| 98 | * Cleanup DEFINE_RCU_FLAVOR() |
| 99 | * Add cds_lfht_ prefix to fls_ulong, get_count_order_ulong, get_count_order_u32 |
| 100 | * Merge RCU Lock-Free Resizable Hash Table |
| 101 | |
| 102 | 2011-12-12 Userspace RCU 0.6.7 |
| 103 | * Add compat file for test urcu wfs |
| 104 | * Add missing compat file for wfq test |
| 105 | * hlist.h: Add missing stddef.h include for NULL |
| 106 | * call_rcu: Add missing call_rcu_before_fork and |
| 107 | call_rcu_after_fork_parent declarations |
| 108 | * Describe autotools/libtool/automake version dependency |
| 109 | * Remove m4_ifdef for AC_PROG_LIBTOOL (deprecated) |
| 110 | * Support older autotools |
| 111 | * Apply autoupdate to configure.ac |
| 112 | * Fix build for amd64 environment (for FreeBSD 8.2) |
| 113 | * Add missing rcu_dereference_sym_bp |
| 114 | * Install test scripts in the dist tarball |
| 115 | |
| 116 | 2011-11-03 Userspace RCU 0.6.6 |
| 117 | * qsbr vs call_rcu : remove exit assertion |
| 118 | * Rename likely/unlikely to caa_likely/caa_unlikely |
| 119 | * Reinsert missing test_urcu_*.c files (missing in rename) |
| 120 | * rename test_qsbr to test_urcu_qsbr |
| 121 | * urcu-pointer: fix rcu_set_pointer unset return value |
| 122 | * Enhance API.txt documentation, add to Makefile as EXTRA_DIST |
| 123 | |
| 124 | 2011-09-29 Userspace RCU 0.6.5 |
| 125 | * call_rcu: Document call_rcu requirements |
| 126 | * call_rcu: fix error handling of malloc error |
| 127 | * urcu call_rcu: Use RCU read-side protection for per-cpu call_rcu data |
| 128 | * urcu,call_rcu: Cleanup call_rcu_data pointers before use in child |
| 129 | * urcu,call_rcu: avoid create call_rcu_data for child when unneed |
| 130 | * urcu,defer_rcu: Make defer_rcu encoding more compact for marker |
| 131 | * urcu_defer: Use cancellation flag instead of pthread_cancel() |
| 132 | * urcu,call_rcu: protects call_rcu_data_list when remove node |
| 133 | * Create default call rcu data upon per-cpu call-rcu teardown |
| 134 | * powerpc: use __NO_LWSYNC__ check to use appropriate lwsync/sync opcode |
| 135 | * cmm: provide lightweight smp_rmb/smp_wmb on PPC |
| 136 | * atomic: provide seq_cst semantics on powerpc |
| 137 | * avoid leaking crdp for failed path |
| 138 | * Return -EEXIST when the old cpu call_rcu_data has not been removed |
| 139 | * protect writing to per_cpu_call_rcu_data[*] |
| 140 | * wake up default call_rcu thread after we move the leftover callbacks |
| 141 | * avoid memory leak in call_rcu_data_free() |
| 142 | * urcu call_rcu: fix use after free() |
| 143 | * use get_cpu_call_rcu_data() for get_call_rcu_data() |
| 144 | * init maxcpus before use |
| 145 | * call_rcu implementation: add missing static |
| 146 | * Document QSBR interaction with mutexes |
| 147 | * urcu-pointer: implement URCU_FORCE_CAST for C++ compatibility of urcu-pointer.h |
| 148 | * urcu-qsbr: use rcu_thread_offline/rcu_thread_online instead of inlining them |
| 149 | * Pair all_cpu call_rcu create with free |
| 150 | * QSBR: add missing wakeups in synchronize_rcu code |
| 151 | * cmm: do not generate code for smp_rmb/smp_wmb on x86_64 |
| 152 | * cmm: let per-arch files provide cmm_smp_* barriers |
| 153 | * Optimize caa_get_cycles() for PowerPC64 |
| 154 | * lfq/lfs tests: use call_rcu |
| 155 | * list: Add cds_list_first_entry |
| 156 | * rculfstack/queue: define _LGPL_SOURCE around static header include |
| 157 | * Add __rcu annotation (unimplemented) |
| 158 | * Fix incorrect fsf address in header files |
| 159 | * wfstack: push returns prior stack emptiness state |
| 160 | * Make lf stack push return if the stack was empty |
| 161 | * Document caa_container_of |
| 162 | * urcu-bp: do not call munmap for NULL registry at exit |
| 163 | * urcu libraries can directly use the _LGPL_SOURCE wfqueue |
| 164 | * rculfstack: document "push" |
| 165 | * Add runall.sh to tarball |
| 166 | * Fix build order of liburcu-cds-common |
| 167 | * Fix missing check for SYS_membarrier in map header |
| 168 | * urcu-qsbr: avoid useless futex wakeups and burning CPU for long grace periods |
| 169 | * api: reimplement BUILD_BUG_ON in compiler.h |
| 170 | * test api cleanup: remove unused primitives |
| 171 | * put thread offline while waiting for the init flag |
| 172 | * urcu: move private definitions to .c file |
| 173 | * urcu-bp: move private definitions to .c file |
| 174 | * urcu-qsbr: move private definitions to .c file |
| 175 | * rcutorture: fix rcutorture-qsbr |
| 176 | * wfqueue: fix type-incorrect assignment |
| 177 | * Fix tests Makefile EXTRA_DIST to use api.h |
| 178 | * Fix choice of default flavour in urcu/map/urcu.h |
| 179 | * api: remove list/hlist |
| 180 | * api: remove arch-specific files |
| 181 | * api: make api_gcc.h a superset of the other headers |
| 182 | * tests api: remove atomics |
| 183 | * put thread offline while waiting for the init flag |
| 184 | * urcu: move private definitions to .c file |
| 185 | * urcu-bp: move private definitions to .c file |
| 186 | * urcu-qsbr: move private definitions to .c file |
| 187 | * rcutorture: fix rcutorture-qsbr |
| 188 | * wfqueue: fix type-incorrect assignment |
| 189 | * Use caa_ prefix for min() and max() |
| 190 | |
| 191 | 2011-07-21 Userspace RCU 0.6.4 |
| 192 | * uatomic: Fix ARM build errors in uatomic. |
| 193 | * urcu tests: hold mutex across use of custom allocator. |
| 194 | * Portability fixes to support FreeBSD 8.2. |
| 195 | |
| 196 | 2011-06-27 Userspace RCU 0.6.3 |
| 197 | * uatomic: Fix i386 compatibility build errors in uatomic. |
| 198 | |
| 199 | 2011-06-13 Userspace RCU 0.6.2 |
| 200 | * Fix build on powerpc. |
| 201 | |
| 202 | 2011-06-13 Userspace RCU 0.6.1 |
| 203 | * Add missing headers into release tarball: |
| 204 | urcu-call-rcu-impl.h and urcu-defer-impl.h |
| 205 | |
| 206 | 2011-06-10 Userspace RCU 0.6.0 |
| 207 | * Added call_rcu() support, graciously contributed by Paul E. McKenney. |
| 208 | * Added urcu/cds.h and merged all "Concurrent Data Containers" (CDS) |
| 209 | into a single .so: liburcu-cds.so to have a single header/shared |
| 210 | object holding all concurrency-aware data containers. It provides |
| 211 | support for RCU lists, queues and stacks at the moment. |
| 212 | * liburcu 0.6.0 now allows linking a single application with multiple |
| 213 | flavors of RCU. This required a library API change which is |
| 214 | incompatible with older 0.5.x liburcu. The .so version number |
| 215 | is therefore bumped from 0 to 1 (e.g. liburcu.so.1). |
| 216 | * Added "atfork" handling API, documented in README. Only useful for |
| 217 | processes using fork() without following exec(). |
| 218 | * Renaming the following files, keeping the old files (producing a |
| 219 | compiler warning): |
| 220 | urcu/uatomic_arch.h -> urcu/uatomic.h |
| 221 | urcu/urcu-futex.h -> urcu/futex.h |
| 222 | urcu/urcu_ref.h -> urcu/ref.h |
| 223 | |
| 224 | 2011-03-04 Userspace RCU 0.5.4 |
| 225 | * urcu-bp: Update fork() handling |
| 226 | |
| 227 | Introduce |
| 228 | |
| 229 | extern void rcu_bp_before_fork(void); |
| 230 | extern void rcu_bp_after_fork_parent(void); |
| 231 | extern void rcu_bp_after_fork_child(void); |
| 232 | |
| 233 | to handle fork gracefully. These disable signals and hold |
| 234 | the registry mutex across forks. (this flavor of the liburcu |
| 235 | library ("bp" for "bulletproof") is mainly used by UST, the |
| 236 | user-space tracer). |
| 237 | |
| 238 | 2011-03-03 Userspace RCU 0.5.3 |
| 239 | * Add support for older ARM single-CPU architecturess (pre-ARMv7) |
| 240 | (thanks to Jason Wessel from WindRiver). |
| 241 | * Fix ARMv7 cmm_rmb/cmm_wmb primitives (use a dmb barrier). |
| 242 | * Remove leftover list_t type from urcu/list.h (namespace cleanup). |
| 243 | * urcu_defer: handle malloc error value. |
| 244 | * Update README file to describe urcu interaction with fork() when not |
| 245 | * followed |
| 246 | by an exec() system call. |
| 247 | |
| 248 | 2010-11-18 Userspace RCU 0.5.2 |
| 249 | * Fix renaming error introduced in 0.5.0. |
| 250 | |
| 251 | 2010-11-18 Userspace RCU 0.5.1 |
| 252 | * Fix renaming error introduced in 0.5.0. (incomplete fix) |
| 253 | |
| 254 | 2010-11-18 Userspace RCU 0.5.0 |
| 255 | * Version 0.5.0 changes the API presented by memory model, |
| 256 | architecture abstraction and data structure primitives in |
| 257 | headers. The prefixes are, respectively: |
| 258 | - cmm_ : Concurrent Memory Model |
| 259 | - caa_ : Concurrent Architecture Abstraction |
| 260 | - cds_ : Concurrent Data Structures |
| 261 | |
| 262 | 2010-03-04 Userspace RCU 0.4.2 |
| 263 | * Add generic uatomic ops support. |
| 264 | * Bugfix in urcu-bp. (rare garbage collection bug occurring in |
| 265 | multithreaded environment). Only affects urcu-bp users (UST). |
| 266 | |
| 267 | 2010-02-12 Userspace RCU 0.4.1 |
| 268 | * s390: compilation fix. |
| 269 | |
| 270 | 2010-01-30 Userspace RCU 0.4.0 |
| 271 | * API change: SIGURCU -> SIGRCU |
| 272 | * API changes: standardize on rcu_ prefix. |
| 273 | * API change: urcu_init -> rcu_init. |
| 274 | * urcu/config.h options renamed to CONFIG_RCU_HAVE_FENCE, |
| 275 | CONFIG_RCU_HAVE_FUTEX, CONFIG_RCU_SMP, CONFIG_RCU_COMPAT_ARCH. |
| 276 | ((moving from URCU -> RCU). |
| 277 | * library names changes: liburcu becomes the "default" version, using |
| 278 | sys_membarrier() when available, and using liburcu-mb as a |
| 279 | fallback. |
| 280 | * The signal-based liburcu is renamed from liburcu to |
| 281 | liburcu-signal. People previously using the signal-based |
| 282 | "liburcu" will automatically be moved to the "default" liburcu |
| 283 | version. |
| 284 | |
| 285 | 2009-11-16 Userspace RCU 0.3.1 |
| 286 | * Add support for sparcv9 32-bit build. |
| 287 | * Update build system to use --host instead of --target. |
| 288 | |
| 289 | 2009-11-03 Userspace RCU 0.3.0 |
| 290 | * API change for the "deferred work" interface. |
| 291 | |
| 292 | 2009-10-14 Userspace RCU 0.2.3 |
| 293 | * Move to autotools. |
| 294 | * Automated architecture detection, with i386 fallback. |
| 295 | * Detect if NR_futex is on the system, fallback on portable |
| 296 | alternatives. |
| 297 | * Add configure mode for UP-only systems. |
| 298 | |
| 299 | 2009-10-02 Userspace RCU 0.2.2 |
| 300 | * Phases out rcu_publish_content() api. |
| 301 | * Adds type checking to urcu-pointer.h pointer exchange primitives. |
| 302 | |
| 303 | 2009-10-02 Userspace RCU 0.2.1 |
| 304 | * small header dependency fix for rculist.h. |
| 305 | * new "liburcu-bp.so" : "Bulletproof RCU", made especially for |
| 306 | the UST userspace tracer. It's a library that sacrifices a bit |
| 307 | of read-side performance for automatically monitoring thread |
| 308 | creation/removal. See README for details. |
| 309 | |
| 310 | 2009-10-01 Userspace RCU 0.2 |
| 311 | * Clarify usage of rcu_cmpxchg_pointer, rcu_xchg_pointer, |
| 312 | rcu_set_pointer. |
| 313 | |
| 314 | 2009-09-29 Userspace RCU 0.1 |
| 315 | * Initial release. |