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OpenZFS on Linux and FreeBSD
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Richard Sharpe 82ff881071 Handling negative dentries in a CI file system. 
For a Case Insensitive file system we must avoid creating negative
entries in the dentry cache. We must also pass the FIGNORECASE into
zfs_lookup so that special files are handled correctly.

We must also prevent negative dentries from being created when files are
unlinked.

Tested by running fsstress from LTP (10 loops, 10 processes, 10,000 ops.)

Also tested with printks (now removed) to ensure that lookups come to
zpl_lookup when negative should not exist.

Tests:
1.   ls Some-file.txt; touch some-file.txt; ls Some-file.txt
  and ensure no errors.

2.   touch Some-file.txt; rm some-file.txt; ls Some-file.txt
  and ensure that the last ls shows log messages showing the lookup
  went all the way to zpl_lookup.

Thanks to tuxoko for helping me get this correct.

Signed-off-by: Richard Sharpe <realrichardsharpe@gmail.com>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4243
 		2016-03-22 17:54:07 -07:00
cmd Correctly parse -R flag arguments 2016-03-22 17:54:07 -07:00
config Linux 4.5 compat: xattr list handler 2016-01-29 09:52:13 -08:00
contrib Init script fixes 2015-09-29 15:27:14 -07:00
etc zfs-import: Perform verbatim import using cache file 2015-10-13 14:33:49 -07:00
include Add -gLp to zpool subcommands for alt vdev names 2016-03-22 17:54:06 -07:00
lib Prevent zpool_find_vdev() from truncating vdev path 2016-03-22 17:54:07 -07:00
man Change full path subcommand flag from -p to -P 2016-03-22 17:54:07 -07:00
module Handling negative dentries in a CI file system. 2016-03-22 17:54:07 -07:00
rpm Remove RPM package restriction 2016-03-22 17:54:06 -07:00
scripts Use truncate instead of fallocate in ziltest.sh 2015-07-13 11:02:59 -07:00
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
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
META Prepare to tag zfs-0.6.5.5 2016-03-09 14:56:21 -08:00
Makefile.am Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -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 2015-12-23 17:29:35 -08:00
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 2015-12-23 17:29:34 -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

README.markdown

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.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org