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Tom Caputi b32f1279d4 Fix race in dnode_check_slots_free()
Currently, dnode_check_slots_free() works by checking dn->dn_type
in the dnode to determine if the dnode is reclaimable. However,
there is a small window of time between dnode_free_sync() in the
first call to dsl_dataset_sync() and when the useraccounting code
is run when the type is set DMU_OT_NONE, but the dnode is not yet
evictable, leading to crashes. This patch adds the ability for
dnodes to track which txg they were last dirtied in and adds a
check for this before performing the reclaim.

This patch also corrects several instances when dn_dirty_link was
treated as a list_node_t when it is technically a multilist_node_t.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #7147
Closes #7388
2018-11-08 14:38:28 -08:00
.github Update codecov.yml 2018-03-14 16:10:36 -07:00
cmd Fix problems receiving reallocated dnodes 2018-07-06 02:46:51 -07:00
config Linux 4.14 compat: blk_queue_stackable() 2018-07-06 02:46:51 -07:00
contrib modprobe zfs during dracut mount 2018-05-07 17:19:57 -07:00
etc chmod -x on etc/init.d/zfs-*.in automake files 2018-05-07 17:19:57 -07:00
include Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
lib Revert "zpool reopen should detect expanded devices" 2018-09-13 10:11:42 -07:00
man OpenZFS 8906 - uts: illumos rootfs should support salted cksum 2018-07-06 02:46:51 -07:00
module Fix race in dnode_check_slots_free() 2018-11-08 14:38:28 -08:00
rpm Tag zfs-0.7.11 2018-09-13 10:13:41 -07:00
scripts Support Debian DKMS builds 2018-07-06 02:46:51 -07:00
tests Revert "zpool reopen should detect expanded devices" 2018-09-13 10:11:42 -07:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Add configure option to enable gcov analysis 2018-03-14 16:10:36 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Add pool state /proc entry, "SUSPENDED" pools 2018-07-06 02:46:51 -07:00
copy-builtin Allow c99 when building ZFS in the kernel tree 2017-03-27 12:31:15 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Add support for "--enable-code-coverage" option 2018-03-14 16:10:36 -07:00
META Tag zfs-0.7.11 2018-09-13 10:13:41 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Update codecov.yml 2018-03-14 16:10:36 -07:00
TEST Retire filebench testing 2017-06-01 06:24:28 -07:00
zfs-script-config.sh.in zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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