Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-pthreads' into feature-pthreads

Merge commit 'refs/top-bases/feature-commit-cb' into feature-commit-cb

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Rebase master to b121

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Revert kthreads based on pthread thread specific data due to failure.
With this patch applied I get the following failure 100% of the time,
I'd prefer to debug it and keep moving forward but I do not have the
time right now so I'm reverting the patch to the version which worked.
Ricardo please fix.

(gdb) bt
0  ztest_dmu_write_parallel (za=0x2aaaac898960) at
../../cmd/ztest/ztest.c:2566
1  0x0000000000405a79 in ztest_thread (arg=<value optimized out>)
    at ../../cmd/ztest/ztest.c:3862
2  0x00002b2e6a7a841d in zk_thread_helper (arg=<value optimized out>)
    at ../../lib/libzpool/kernel.c:131
3  0x000000379be06367 in start_thread (arg=<value optimized out>)
    at pthread_create.c:297
4  0x000000379b2d30ad in clone () from /lib64/libc.so.6

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Revert unneeded ztest_resume() prototype changes to match upstream.

Reimplement user kthreads based on pthread thread specific data.
This resolves previous scalabily concerns about the cost of calling
curthread which previously required a list walk.  The kthread address
is now tracked as thread specific data which can be quickly returned.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Change VERIFY() into VERIFY3U() when creating threads in ztest, so that we can see the return code when it fails.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Remove debug printf

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Provide correct kthread API semantics using pthreads.

The intent here is to fully remove the previous Solaris thread
implementation so we don't need to simulate both Solaris kernel
and user space thread APIs.  The few user space consumers of the
thread API have been updated to use the kthread API.  In order
to support this we needed to more fully support the kthread API
and that means not doing crazy things like casting a thread id
to a pointer and using that as was done before.  This first
implementation is not effecient but it does provide all the
corrent semantics.  If/when performance becomes and issue we
can and should just natively adopt pthreads which is portable.

Let me finish by saying I'm not proud of any of this and I would
love to see it improved.  However, this slow implementation does
at least provide all the correct kthread API semantics whereas
the previous method of casting the thread ID to a pointer was
dodgy at best.

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-pthreads' into feature-pthreads

Add new DMU_READ_PREFETCH flag to dmu_read().

Stop the kthread/thread/pthread mixing and matching insanity.  Update all
code to only use the kthread API regardless of if it is compiled in the
kernel or user space.  The kthread API will be layered on top of pthreads
as best as possible in zfs_context, this is non optimal but much clearer.

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Additional lock calls were added to ztest and they must be updated
to use the pthread's API in favour of Solaris threads.

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-pthreads' into feature-pthreads

Conflicts:

cmd/ztest/ztest.c

Merge commit 'refs/top-bases/feature-commit-cb' into feature-commit-cb

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Conflicts:

cmd/ztest/ztest.c

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Rebase master to b117

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-pthreads' into feature-pthreads

Fix uninitialized variable error in ztest_dmu_commit_callbacks()

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

Update mutex_lock to pthread_mutex_lock for zcl->zcl_callback_locks.

Merge commit 'refs/top-bases/feature-pthreads' into feature-pthreads

Add extra () requested by gcc

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-pthreads' into refs/top-bases/feature-branch

New TopGit dependency: feature-pthreads

Add 'feature-pthreads' branch to features branch.

Add 'feature-commit-cb' branch for DMU commit callbacks.

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Rebase master to b108

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Refresh type in topgit git://* reference

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Add GIT to master

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Rebase master to b105

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Add unicode library

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Remove zdump, it's an unrelateds command which I added simply due to the z* command convention

Resolve time conflict

Merge branch 'feature-commit-cb' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Revert changes from this branch so the branch may be removed.  We
will integrate the latest patch from Sun here once everything is
is basically working.  This verion of the patch is out of date
anyone and may not be what is needed.

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-commit-cb' into refs/top-bases/feature-branch

Add dropping written variable declaration

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge branch 'feature-commit-cb' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-commit-cb' into feature-commit-cb

Remove zcommon reference merged in to zpool

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge branch 'feature-commit-cb' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-commit-cb' into feature-commit-cb

Moving lib/libspl to linux-libspl branch

Merge commit 'refs/top-bases/feature-zap-cursor-to-key' into feature-zap-cursor-to-key

Merge commit 'refs/top-bases/feature-branch' into feature-branch

Merge branch 'feature-zap-cursor-to-key' into refs/top-bases/feature-branch

Merge branch 'feature-commit-cb' into refs/top-bases/feature-branch

Merge commit 'refs/top-bases/feature-commit-cb' into feature-commit-cb