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vitastor
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40 Commits (7fea69ff5f2a4ce6046569838d4809b98ceedda2)

Author SHA1 Message Date
Vitaliy Filippov 845454742d Fix warning with QEMU 8.1 2023-12-04 01:59:07 +03:00
Vitaliy Filippov a061246997 Do not attempt to initialize QEMU driver via vitastor_c_create_qemu_uring() 
It doesn't add any compatibility because vitastor_c_uring_register_eventfd()
is added in the same VITASTOR_C_API_VERSION 2.
 2023-10-26 17:46:19 +03:00
Vitaliy Filippov 38db53f5ee Implement client writeback cache 
- Disabled by default, enable with client_enable_writeback=true
- Even then only enabled in FIO when -direct is disabled and in QEMU when
  block device cache is enabled in settings
- Can also be enabled in other clients like vitastor-cli using parameter
  client_writeback_allowed=true, but not recommended
 2023-09-16 17:52:17 +03:00
Vitaliy Filippov 85e9f67d9d Add supported_truncate_flags 2023-09-06 17:37:52 +03:00
Vitaliy Filippov 79c6d6f323 Make QEMU driver compatible with QEMU 8.1 2023-08-24 02:23:55 +03:00
Vitaliy Filippov ae760dbc1d Fix co_truncate size division by BDRV_SECTOR_SIZE 2023-08-24 01:55:35 +03:00
Vitaliy Filippov 0b2d12eef1 Remove has_work, it was unnecessary 2023-07-21 00:04:37 +03:00
Vitaliy Filippov 9815d70ffc It is impossible to use io_uring with older vitastor-client because it does not have vitastor_c_uring_has_work() 2023-07-18 23:37:53 +03:00
Vitaliy Filippov ba7427020e Fix deadlocks possible in qemu-img after fixing iothread 
Deadlock was caused by switching QEMU coroutines directly inside
vitastor_co_read_bitmap_cb() callback. The correct way is to schedule a BH
/BH is a QEMU term for setImmediate() :)/, same as in read and write callbacks.
 2023-07-18 23:32:16 +03:00
Vitaliy Filippov 30ac899074 Make QEMU driver compatible with older vitastor_client and with systems without io_uring 2023-07-04 15:51:43 +03:00
Vitaliy Filippov 2348d39cf4 Avoid repeated qemu_uring_handlers, add 2.0-2.7 compatibility 2023-07-04 00:28:23 +03:00
Vitaliy Filippov 3de7929fe5 Integrate v2 - direct epoll 2023-07-04 00:28:23 +03:00
Vitaliy Filippov 07b2196bc2 Integrate QEMU driver with io_uring 2023-07-04 00:28:23 +03:00
Vitaliy Filippov a11ca56fb1 Fix compatibility of the QEMU driver with iothread 2023-06-21 02:11:28 +03:00
Vitaliy Filippov de3e609166 Add a FIXME about QEMU driver thread safety 2023-05-14 00:06:09 +03:00
Vitaliy Filippov c768a9015f Fix QEMU driver compatibility with QEMU 8.0 2023-04-25 11:20:21 +03:00
Vitaliy Filippov 8763e9211c Fix qemu driver compilation warning/error 2023-01-13 23:44:39 +03:00
Vitaliy Filippov 137309cf29 Implement bdrv_co_block_status for snapshot export support 2023-01-07 17:06:58 +03:00
Vitaliy Filippov 3f35744052 Fix compatibility with QEMU aio_set_fd_handler signatures in 7.0 and < 2.9 2022-12-15 19:17:17 +03:00
Vitaliy Filippov 842ba8b831 Use (uint64_t)1 instead of 1l / 1ul 2022-04-16 01:48:14 +03:00
Vitaliy Filippov 8dfbd7943c Use logical block size = 512 bytes by default 2021-12-08 23:43:40 +03:00
Vitaliy Filippov 9fca01dc62 Add a forgotten return statement 2021-12-03 00:41:49 +03:00
Vitaliy Filippov 0bd3a94efd Use qdict_get_try_int because qdict_get_int may segfault on a missing key 2021-12-03 00:22:17 +03:00
Vitaliy Filippov 5fe3a40416 More fixes for QEMU 2.x :) 2021-12-02 02:25:50 +03:00
Vitaliy Filippov 15957b7d13 Update QEMU 4.2 patch and CentOS 7 QEMU 4.2 spec patch 2021-12-02 01:03:19 +03:00
Vitaliy Filippov 92362027a8 Build vitastor driver as part of the QEMU package by default 
Old behaviour can be restored with cmake var WITH_QEMU=true
 2021-11-29 02:05:26 +03:00
Vitaliy Filippov 43f8ea47a0 Ok, something is not allowed somewhere in C99 2021-11-24 11:28:10 +03:00
Vitaliy Filippov 879fe9b2b4 Add a patch for qemu 6.1 and replace _ with - in qemu options 2021-11-21 16:24:30 +03:00
Vitaliy Filippov a1488f7217 Fix qemu_driver to build with QEMU 2.x (previously it was only correct for QEMU 2.0) 2021-11-08 23:07:31 +03:00
Tân Lê e889ac4209
Fix building QEMU 3.1 2021-11-05 13:45:51 +07:00
Vitaliy Filippov b52dd6843a Rename qemu_rbd_unescape and qemu_rbd_next_tok to *_vitastor_* 2021-07-03 23:14:44 +03:00
Vitaliy Filippov b66160a7ad Aggregate per-pool statistics in mon 2021-07-03 23:14:44 +03:00
Vitaliy Filippov 6ca8afffe5 Add CAS version parameter to the C wrapper 2021-06-19 01:00:52 +03:00
Vitaliy Filippov 511a89948b Rework qemu_proxy into a C wrapper library with public header 2021-06-19 00:39:11 +03:00
Vitaliy Filippov 818ae5d61d Some config parsing fixes 2021-05-01 00:20:01 +03:00
Vitaliy Filippov f6f35f4127 Pass options correctly to not override /etc/vitastor/vitastor.conf 2021-04-30 01:17:44 +03:00
Vitaliy Filippov 6a6fd6544d Add RDMA options to the QEMU driver 2021-04-29 11:02:49 +03:00
Vitaliy Filippov 38bd51c97f Remove aio_context assertion, it seems it is unneeded 2021-04-14 22:32:15 +03:00
Vitaliy Filippov 2612d3198a Introduce image names and metadata storage in etcd 
Each inode has: image name, parent inode number & pool, size and readonly flag

Snapshots are created by switching image name to a different inode number
while using the older inode as parent.
 2021-04-10 17:44:12 +03:00
Vitaliy Filippov bf9a175efc Move C/C++ sources to src subdirectory 2021-02-25 23:59:03 +03:00