Distributed Network Block Device 3 --rewrite for Kernel 3.x https://git.openslx.org/dnbd3.git/atom/src/kernel/dnbd3.h?h=isfant 2020-10-16T15:15:49+00:00 2020-10-16T15:15:49+00:00 Manuel Bentele 2020-10-16T15:15:49+00:00 urn:sha1:969496f15e1e0359e26c2c6e995ad4ef82720f86 This change restructures the source code directories, separates shared form non-shared application code and adds CMake dependencies. These dependencies allow the tracking of changes and trigger a rebuild of those build targets where changed files are involved. WARNING: Note that the support of the DNBD3_SERVER_AFL build option is not supported yet. Thus, the option should be never turned on. 2020-08-28T12:50:51+00:00 Manuel Bentele 2020-08-28T12:50:51+00:00 urn:sha1:042b7ca9932f05ed7c69efc7b15fa58e42c6eb3c This change converts all debug messages to support the Linux kernel's dynamic debug feature. Debug messages can be enabled or disabled by the debug feature if the - kernel module is built in debug mode (EXTRA_CFLAGS=-g -DDEBUG) - Linux kernel supports dynamic debug (CONFIG_DYNAMIC_DEBUG is set) This patch removes outdated kernel compatibility macros (used for Linux kernels in version 4.x) and cleans up the kernel module's code. 2020-08-27T09:02:30+00:00 Manuel Bentele 2020-08-27T09:02:30+00:00 urn:sha1:47c8cb8c78fbace1e5edb2107fc1c4dcbe7058be This converts the dnbd3 kernel module driver to use the blk-mq infrastructure, which allows the dnbd3 kernel module driver to be compatible with Linux kernels in version 5.x or later. The conversion of the implementation uses one hardware queue to preserve the existing send/receive and load-balancing logic, but can be scaled up in the future. In addition to that, time measurements in the implementation are converted to ktime based accessors to replace the use of deprecated time interfaces. 2016-01-11T10:59:03+00:00 Simon Rettberg 2016-01-11T10:59:03+00:00 urn:sha1:aedf8c534195772f60e7c6409ae045fa20415aef - Disable panic timeout that reports errors to block layer by default - Get rid of "is_server" used by old proxy mode, introduce "honor_server_alts" that just controls whether we use alts provided by the server - Allow switching servers when we only have 3 RTT measurements - If using alts provided by server, don't ignore those that come from other servers than the initial one 2015-02-22T14:26:21+00:00 Simon Rettberg 2015-02-22T14:26:21+00:00 urn:sha1:7dfeb1c1963596edd36193ede5ce8f82c2bf76a5 Some minor debugging code, mostly commented out 2013-11-11T21:44:00+00:00 Simon Rettberg 2013-11-11T21:44:00+00:00 urn:sha1:79ae416cbf5618328742234c33bb24fb0a61fe87 [KERNEL] Remove server mode support as it's not needed anymore [KERNEL] Some more sanity checks and debug messages 2013-10-24T14:53:07+00:00 Simon Rettberg 2013-10-24T14:53:07+00:00 urn:sha1:d8b028a18a9581d3fdb07c5c455ba206af50a798 Right after connecting, all servers will be polled every 4 seconds for 30 seconds, so we get 7 data points per alt-server. If no better server is found during this time, further RTT measurements will be done every 22 seconds, to put less load on the network in the long run. 2013-07-17T10:10:01+00:00 sr 2013-07-17T10:10:01+00:00 urn:sha1:3fd89450610679c6b777767632d2af5751773295 Fix compilation of kernel module 2012-09-03T19:00:26+00:00 sr 2012-09-03T19:00:26+00:00 urn:sha1:60b2ba6ef9ed779d750958b6422f05c93a4a2d91 [SERVER] Skeleton of server-to-server communication [SERVER] Update access-time of images in use by actual clients [*] Add dnbd3_host_t type to handle address+port+addrtype consistently across the project 2012-09-03T13:27:36+00:00 sr 2012-09-03T13:27:36+00:00 urn:sha1:a55be46ec7a281f5c3d41d48edf32e57ef5e4ba1