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Yuxuan Shui bcb15891ab Linux 3.6 compat, kern_path_locked() added
The kern_path_parent() function was removed from Linux 3.6 because
it was observed that all the callers just want the parent dentry.
The simpler kern_path_locked() function replaces kern_path_parent()
and does the lookup while holding the ->i_mutex lock.

This is good news for the vn implementation because it removes the
need for us to handle the locking.  However, it makes it harder to
implement a single readable vn_remove()/vn_rename() function which
is usually what we prefer.

Therefore, we implement a new version of vn_remove()/vn_rename()
for Linux 3.6 and newer kernels.  This allows us to leave the
existing working implementation untouched, and to add a simpler
version for newer kernels.

Long term I would very much like to see all of the vn code removed
since what this code enabled is generally frowned upon in the kernel.
But that can't happen util we either abondon the zpool.cache file
or implement alternate infrastructure to update is correctly in
user space.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #154
2012-10-14 16:26:21 -07:00
cmd Remove autotools products 2012-08-27 11:46:23 -07:00
config Linux 3.6 compat, kern_path_locked() added 2012-10-14 16:26:21 -07:00
include Linux 3.6 compat, kern_path_locked() added 2012-10-14 16:26:21 -07:00
lib Remove autotools products 2012-08-27 11:46:23 -07:00
module Linux 3.6 compat, kern_path_locked() added 2012-10-14 16:26:21 -07:00
patches Reimplement rwlocks for Linux lock profiling/analysis. 2009-09-18 16:09:47 -07:00
scripts Remove autotools products 2012-08-27 11:46:23 -07:00
.gitignore Remove autotools products 2012-09-11 10:12:47 -07:00
AUTHORS Public Release Prep 2010-05-17 15:18:00 -07:00
autogen.sh Remove autotools products 2012-08-27 11:46:23 -07:00
ChangeLog Prep for spl-0.5.0 tag 2010-08-13 09:33:50 -07:00
configure.ac Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
copy-builtin Add script for builtin module building. 2012-07-26 15:13:09 -07:00
COPYING Public Release Prep 2010-05-17 15:18:00 -07:00
DISCLAIMER Public Release Prep 2010-05-17 15:18:00 -07:00
dkms.conf.in Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
dkms.postinst Support building a spl-modules-dkms sub package 2012-08-08 13:49:40 -07:00
INSTALL Public Release Prep 2010-05-17 15:18:00 -07:00
Makefile.am Add copy-builtin to EXTRA_DIST 2012-08-23 09:59:40 -07:00
META SPL 0.6.0-rc11 2012-09-18 11:28:57 -07:00
PKGBUILD-spl-modules.in Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
PKGBUILD-spl.in Add make rule for building Arch Linux packages 2011-12-14 16:44:10 -08:00
README.markdown Add script for builtin module building. 2012-07-26 15:13:09 -07:00
spl-modules.spec.in Cleanly remove spl-modules-devel headers 2012-08-13 16:34:32 -07:00
spl.release.in Move spl.release generation to configure step 2012-07-12 12:13:47 -07:00
spl.spec.in Fix rpm dependencies 2012-01-18 11:24:36 -08:00

The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and dont want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.

To build packages for your distribution:

$ ./configure
$ make pkg

To copy the kernel code inside your kernel source tree for builtin compilation:

$ ./configure --enable-linux-builtin --with-linux=/usr/src/linux-...
$ ./copy-builtin /usr/src/linux-...

Full documentation for building, configuring, and using the SPL can be found at: http://zfsonlinux.org