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Chunwei Chen 29572ccdef Fix empty xattr dir causing lockup
During zfs_rmnode on a xattr dir, if the system crash just after
dmu_free_long_range, we would get empty xattr dir in delete queue. This would
cause blkid=0 be passed into zap_get_leaf_byblk when doing zfs_purgedir during
mount, and would try to do rw_enter on a wrong structure and cause system
lockup.

We fix this by returning ENOENT when blkid is zero in zap_get_leaf_byblk.

Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4114
Closes #4052
Closes #4006
Closes #3018
Closes #2861
2015-12-28 09:41:30 -08:00
cmd Remove "index" column from dbufstat.py 2015-12-15 14:40:21 -08:00
config Skip GPL-only symbols test when cross-compiling 2015-12-18 13:46:23 -08:00
contrib Activate LVM volume groups before looking for zpools. 2015-12-18 13:46:23 -08:00
etc zfs-import: Perform verbatim import using cache file 2015-10-13 10:37:05 -07:00
include Add lock types RW_NOLOCKDEP and MUTEX_NOLOCKDEP 2015-12-22 10:20:29 -08:00
lib Either _ILP32 or _LP64 must be defined 2015-12-10 11:55:38 -08:00
man Make zio_taskq_batch_pct user configurable 2015-12-18 13:46:23 -08:00
module Fix empty xattr dir causing lockup 2015-12-28 09:41:30 -08:00
rpm Fix zfs-dkms uninstall/update 2015-10-02 11:19:25 -07:00
scripts zimport.sh: Add configure/make option support 2015-11-16 16:10:07 -08:00
udev Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -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 Move dracut directory to contrib 2015-07-09 13:59:37 -07:00
copy-builtin Fix --enable-linux-builtin 2015-12-02 07:54:32 -08:00
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 Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
META Tag zfs-0.6.5 2015-09-11 11:16:38 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
TEST Follow 0/-E convention for module load errors 2015-11-16 16:10:06 -08:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

Native ZFS for Linux!

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

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