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kernelOfTruth a966c5640e Reintroduce zfs_remove() synchronous deletes 
Reintroduce a slightly adapted version of the Illumos logic for
synchronous unlinks.  The basic idea here is that only files
smaller than zfs_delete_blocks (20480) blocks should be deleted
synchronously.  Unlinking larger files should be handled
asynchronously to minimize impact to the caller.

To accomplish this iput() which is responsible for calling
zfs_znode_delete() on Linux is only called in the delete_now
path.  Otherwise zfs_async_iput() is used which allows the
last reference to be dropped by a taskq thread effectively
making the removal asynchronous.

Porting notes:
- Add zfs_delete_blocks module option for performance analysis.
  The default value is DMU_MAX_DELETEBLKCNT which is the same
  as upstream.  Reducing this value means that smaller files
  will be unlinked asynchronously like large files.
- All occurrences of zfsvfs changes to zsb.

Ported-by: KernelOfTruth kerneloftruth@gmail.com
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2016-01-26 15:26:02 -08:00
cmd mount.zfs: use getopt_long instead of getopt to guarantee permutation of argv. 2016-01-25 13:17:18 -08:00
config Linux 4.5 compat: xattr list handler 2016-01-20 11:36:56 -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 Illumos 6815179, 6844191 2016-01-22 09:39:46 -08:00
lib kobj_read_file: Return -1 on vn_rdwr() error 2016-01-23 10:16:26 -08:00
man Reintroduce zfs_remove() synchronous deletes 2016-01-26 15:26:02 -08:00
module Reintroduce zfs_remove() synchronous deletes 2016-01-26 15:26:02 -08:00
rpm Create zfs-kmod-debuginfo rpm with redhat spec file 2016-01-21 11:20:06 -08:00
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 Illumos 6319 - assertion failed in zio_ddt_write: bp->blk_birth == txg 2016-01-12 09:10:52 -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