Commit Graph

54 Commits

Author SHA1 Message Date
Thomas Schoebel-Theuer
5d4f14c43d aio: fix internal race with callback 2020-04-13 10:54:19 +02:00
Thomas Schoebel-Theuer
9b81d52ffd aio: fix short reads crossing EOF 2020-04-13 10:54:19 +02:00
Thomas Schoebel-Theuer
d87fb27473 all: deprecate mref_skip_sync 2020-04-13 10:54:19 +02:00
Thomas Schoebel-Theuer
40e72f9e7d all: deprecate mref_rw and mref_may_write 2020-04-13 10:54:19 +02:00
Thomas Schoebel-Theuer
fca091e087 aio: self-tune aio_max_nr when possible 2020-01-31 08:07:12 +01:00
Thomas Schoebel-Theuer
30509509a1 aio: further speedup event_thread termination 2020-01-25 20:15:13 +01:00
Thomas Schoebel-Theuer
d63b5e72b0 aio: stop submit_thread earlier 2020-01-24 17:44:04 +01:00
Thomas Schoebel-Theuer
ca3cda8a01 aio: speed up event_thread termination 2020-01-24 17:44:04 +01:00
Thomas Schoebel-Theuer
b1b812beaa aio: stop sync_thread earlier 2020-01-24 17:44:04 +01:00
Thomas Schoebel-Theuer
ee05ff096e aio: adapt to upstream commit 2055da97389a605c8a00d163d40903afbe413921 2019-12-25 09:19:08 +01:00
Thomas Schoebel-Theuer
222f048937 all: adapt to new timespec64 type 2019-12-25 09:19:07 +01:00
Thomas Schoebel-Theuer
25fde8b5f9 aio: fix potential race on fd 2019-04-16 09:20:49 +02:00
Thomas Schoebel-Theuer
8e1b163936 aio: fix forgotten upstream init for get_unused_fd() 2019-04-16 09:20:49 +02:00
Thomas Schoebel-Theuer
20fc88fed9 aio: fix potential race at get_unused_fd() 2019-04-16 09:20:48 +02:00
Thomas Schoebel-Theuer
d58c4f317d aio: safeguard against RLIMIT_NOFILE
When setting RLIMIT_NOFILE to ridicuously wrong values, it was possible
to get an endless loop.
2019-04-16 09:20:48 +02:00
Thomas Schoebel-Theuer
05e17fb881 aio: adapt to upstream commit 723c038475b78edc9327eb952f95f9881cc9d7 2019-02-19 07:26:32 +01:00
Thomas Schoebel-Theuer
8b6f93a6db aio: replace spinlock with mutex 2018-01-31 07:21:08 +01:00
Thomas Schoebel-Theuer
1a73763913 all: remove old dirtifying 2017-12-10 20:54:27 +01:00
Thomas Schoebel-Theuer
7d64386a21 aio: use new mapfree dirtifying 2017-12-10 20:54:27 +01:00
Thomas Schoebel-Theuer
d8eac2ecba all: new mapfree dirtifying 2017-12-10 20:54:27 +01:00
Thomas Schoebel-Theuer
57c9da1800 aio: fix race on array index 2017-06-04 17:56:46 +02:00
Thomas Schoebel-Theuer
2d7f602a32 aio: disable irqs during spinlocks 2017-05-16 10:23:06 +02:00
Thomas Schoebel-Theuer
37f738bb5c aio: workaround standard Unix filehandles 2017-05-14 16:57:01 +02:00
Thomas Schoebel-Theuer
f654129e94 compat: disable aio when necessary 2017-05-04 09:16:17 +02:00
Thomas Schoebel-Theuer
1f11a21f53 aio: decrease context table 2017-02-09 10:13:31 +01:00
Thomas Schoebel-Theuer
d6e5b979ac aio: adapt to changes in get_unused_fd()
Only relevant for the out-of-tree version.

The AIO stuff needs to be re-implemented anyway.
2016-08-25 15:39:06 +02:00
Thomas Schoebel-Theuer
634499d3d2 all: testing of hangs 2016-08-09 09:37:09 +02:00
Thomas Schoebel-Theuer
4d31d09534 all: remove CONFIG_MARS_BIGMODULE 2016-03-03 09:33:34 +01:00
Thomas Schoebel-Theuer
c6235c71d5 aio: fix race on shutdown 2015-07-15 10:38:49 +02:00
Thomas Schoebel-Theuer
7d66938666 aio: fix portability to changed kernels / kthread implementation
In the long term, mars_aio will be replaced anyway because it
uses userspace concepts like ioctx.

Don't use the internal kthread_stop_nowait() anymore.
It is too cumbersome to catch up with upstream development.
2015-03-23 13:48:10 +01:00
Thomas Schoebel-Theuer
77714f374e aio: safeguard ioctx 2015-03-23 13:48:10 +01:00
Thomas Schoebel-Theuer
c35065fe97 infra: report global IO hangs 2015-02-27 11:32:57 +01:00
Thomas Schoebel-Theuer
5d81381664 all: disallow sync IO during emergency mode 2015-02-11 15:20:26 +01:00
Thomas Schoebel-Theuer
aa09d7df30 all: clarify license GPLv2+ 2014-11-25 18:09:17 +01:00
Thomas Schoebel-Theuer
1439d30ffb all: port to newer kernels (up to 3.15) 2014-06-18 12:10:55 +02:00
Thomas Schoebel-Theuer
7aebfdf6bb all: remove __exit annotation 2014-04-24 18:08:31 +02:00
Thomas Schoebel-Theuer
a35585325d aio: fix dirty_stage 2014-04-20 07:35:29 +02:00
Thomas Schoebel-Theuer
2f4696a9cc all: fix logfile size propagation 2014-03-31 06:59:09 +02:00
Thomas Schoebel-Theuer
8d0ce5c9bd aio: fix races in EOF computation 2014-03-26 11:43:05 +01:00
Thomas Schoebel-Theuer
f45c3fbdd3 aio: use aio_sync_mode=2 by default 2014-03-19 11:30:22 +01:00
Thomas Schoebel-Theuer
d70a415b9a aio: fix dirty_head completion 2013-07-10 09:53:59 +02:00
Thomas Schoebel-Theuer
5103e7b46c aio: increase robustness of file descriptors 2013-07-10 07:16:19 +02:00
Thomas Schoebel-Theuer
c9bb358239 aio: improve debugging 2013-07-10 07:16:19 +02:00
Thomas Schoebel-Theuer
62e2f5944b aio: finally fix race on dirty area at the end 2013-07-04 07:21:01 +02:00
Thomas Schoebel-Theuer
83b75845c3 aio: remove obsolete clever_sync 2013-07-04 07:21:01 +02:00
Thomas Schoebel-Theuer
f3613177a2 aio: prefer fdatasync() over filemap_write_and_wait_range() 2013-07-04 07:21:00 +02:00
Thomas Schoebel-Theuer
81ca278291 aio: fix race on file size
The old code used mf->mf_max for correcting the file size, but that
was wrong for multiple writes in flight.

A really correct solution would have to remember all in-flight writes
and compute their minimum IO position. Since that would be too
costly, we just use the old size before any writes have started.

This might be too conservative for extremely high load patterns
(possible starvation problem). For now, take this and check whether
we really need higher effort.
2013-06-20 15:08:28 +02:00
Thomas Schoebel-Theuer
a1caef264c aio: avoid cluttering the log messages 2013-05-13 12:50:29 +02:00
Thomas Schoebel-Theuer
5a5ea9bc52 infra: initialize IO transfer metadata correctly 2013-04-16 10:42:16 +02:00
Thomas Schoebel-Theuer
27fd43cb31 infra: remove obsolete black interface
The backing file should not be exposed from the brick blackbox.
2013-04-16 10:42:16 +02:00