freebsd with flexible iflib nic queues
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Matthew Macy 57dc5d42b1
dmu_zfetch: don't leak unreferenced stream when zfetch is freed
Currently streams are only freed when:
  - They have no referencing zfetch and and their I/O references
    go to zero.
  - They are more than 2s old and a new I/O request comes in on
    the same zfetch.

This means that we will leak unreferenced streams when their zfetch
structure is freed.

This change checks the reference count on a stream at zfetch free
time. If it is zero we free it immediately. If it has remaining
references we allow the prefetch callback to free it at I/O
completion time.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Adam Moss <c@yotes.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11052
2020-10-13 21:03:36 -07:00
.github Document branching structure 2020-09-28 13:23:49 -07:00
cmd zil_parse: make callback parameters const 2020-10-09 09:34:54 -07:00
config blkg_tryget config test: initialize struct 2020-10-13 16:36:36 -07:00
contrib Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
etc Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
include dmu.h: remove stale declaration dmu_objset_snapshot_tmp 2020-10-13 16:46:00 -07:00
lib FreeBSD: Improve libzfs_error_init messages 2020-10-13 09:38:40 -07:00
man Expose zfetch_max_idistance tunable 2020-10-13 09:32:34 -07:00
module dmu_zfetch: don't leak unreferenced stream when zfetch is freed 2020-10-13 21:03:36 -07:00
rpm Add zpool_influxdb command 2020-10-09 09:29:21 -07:00
scripts Add zfs.sh module unload error message 2020-10-13 16:51:54 -07:00
tests Add zpool_influxdb command 2020-10-09 09:29:21 -07:00
udev Centralize variable substitution 2020-07-14 17:33:44 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
configure.ac Add zpool_influxdb command 2020-10-09 09:29:21 -07:00
copy-builtin Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
cppcheck-suppressions.txt Import ZStandard v1.4.5 2020-08-20 10:30:06 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Silence 'make checkbashisms' 2020-08-20 13:45:47 -07:00
META Increase Supported Linux Kernel to 5.9 2020-10-13 09:51:13 -07:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md docs: update README's installation link 2020-10-08 09:33:53 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are 12-STABLE and 13-CURRENT.