your task is rescheduled to a different cpu after you've
taken the lock but before calling RW_LOCK_HELD is called.
We need the spinlock to ensure there is a wmb() there.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@68 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
We need to use kthread_create() here for a few reasons. First
off to old kernel_thread() API functioin will be going away.
Secondly, and more importantly if I use kthread_create() we can
then properly implement a thread_exit() function which terminates
the kernel thread at any point with do_exit(). This fixes our
cleanup bug which was caused by dropping a mutex twice after
thread_exit() didn't really exit.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@66 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
atomic operations will be rewritten anyway with the correct arch
specific assembly. But not today.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@65 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Added liunx block device headers to sunldi.h
- Made __taskq_dispatch safe for interrupt context where it turns out we
need to be useing it.
- Fixed NULL const/dest bug for kmem slab caches
- Places debug __dprintf debugging messages under a spin_lock_irqsave
so it's safe to use then in interrupt handlers. For debugging only!
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@64 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Solaris man page. Anyway, since apparently this usage is accectable
I've updated the function to handle it.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@63 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
it should be dropped to one page but in the short term we should be able
to easily live with 4 page allocations.
Fix the nvlist bug, it turns out the user space side of things were
packing the nvlists correctly as little endian, and the kernel space
side of things due to a missing #define were unpacking them as big endian.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@62 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
what I would call effecient but it does have the advantage
of being correct which is all I need right now. I added
a regression test as well.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@57 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Enhanse the VERIFY() support to output the values which
failed to compare as expected before crashing. This make
debugging much much much easier.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@55 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This should handle the absolute minimum I need for ZFS. It will
register the chdev with the right callbacks. Then the generic
registered linux callback will find the right registered solaris
callback for the function and munge the args just right before
passing it on. Should work, but untested (just compiled), so I
expect bugs.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@52 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
stuff which only inclused the getf()/releasef() in to the vnode area
where it will only really be used. These calls allow a user to
grab an open file struct given only the known open fd for a particular
user context. ZFS makes use of these, but they're a bit tricky to
test from within the kernel since you already need the file open
and know the fd. So we basically spook the system calls to setup
the environment we need for the splat test case and verify given
just the know fd we can get the file, create the needed vnode, and
then use the vnode interface as usual to read and write from it.
While I was hacking away I also noticed a NULL termination issue
in the second kobj test case so I fixed that too. In fact, I fixed
a few other things as well but all for the best!
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@51 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Adjust kmem slab interface to make a copy of the slab name before
passing it on to the linux slab (we free it latter too)
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@47 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Map the LE/BE_* byteorder macros to the linux versions
- More minor vnodes fixes
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@41 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Re-implmented kobj support based on the vnode support.
- Add TESTS option to check.sh, and removed delay after module load.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@39 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Update check.sh script to take V=1 env var so you can run it verbosely as
follows if your chasing something: sudo make check V=1
Add new kobj api and needed regression tests to allow reading of files from
within the kernel. Normally thats not something I support but the spa layer
needs the support for its config file.
Add some more missing stub headers
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@38 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Add sloopy atomic declaration which will need to be fixed (eventually)
Fill out more of the Solaris VM hooks
Adjust the create_thread function
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@26 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
added a few more stub headers,
fleshed out a few stub headers,
added a FIXME file,
added various compatibility macros
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@25 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
in what the contents need to be as I encounter the warnings
about missing prototypes, symbols, and such.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@21 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
muck with #includes in existing Solaris style source to get it
to find the right stuff.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@18 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
We've dropped all the linux- prefixes on the file in favor of spl-
which makes more sense. And we've cleaned up some of the includes
so everybody should be including their own dependencies properly.
All a module which wants to use the spl support needs to do in
include spl.h and ensure it has access to Module.symvers.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@16 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Removed all references to kzt and replaced with splat
- Moved portions of include files which do not need to be
available to all source files in to local.h files in
proper source subdirs.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@14 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
idea since it forcefully codifing the ABI. Since the shim
layer is no longer linked at build time in to the test suite
we can;'t cut any corners and get away with it.
Everything is working now with the exception of sorting
setting Module.symvers properly. This may take a little
Makefile reorg.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@5 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
- Add list handling compatibility library
- Drop uu_* list handling in favor of local list implementation
- libtoolize
- generic makefile cleanup
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@3 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
in an initial reasonable autoconf style build system. This does
not yet build but the configure system does appear to work properly
and integrate with the kernel. Hopefully the next commit gets
us back to a buildable version we can run the test suite against.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@1 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
