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This patch fixes the following problem:
- If we failed to deal with the delayed dir items, we should abort transaction,
just as its comment said. Fix it.
- If root reference or root back reference insertion failed, we should
abort transaction. Fix it.
- Fix the double free problem of pending->inherit.
- Do not restore the trans->rsv if we doesn't change it.
- make the error path more clearly.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
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bbio has been malloced in btrfs_map_block() and should be
freed before leaving from the error handling cases.
spatch with a semantic match is used to found this problem.
(http://coccinelle.lip6.fr/)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
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I noticed this when I was doing the fsync stuff, we allocate split extents if we
drop an extent range that is in the middle of an existing extent. This BUG()'s
if we fail to allocate memory, but the fact is this is just a cache, we will
just regenerate the cache if we need it, the important part is that we free the
range we are given. This can be done without allocations, so if we fail to
allocate splits just skip the splitting stage and free our em and look for more
extents to drop. This also makes btrfs_drop_extent_cache a void since nobody
was checking the return value anyway. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Josef has suggested that this is not necessary. Removing it also avoids
this lockdep splat (after the new sb_internal locking stuff was added):
[ 604.090449] ======================================================
[ 604.114819] [ INFO: possible circular locking dependency detected ]
[ 604.139262] 3.6.0-rc2-ceph-00144-g463b030 #1 Not tainted
[ 604.162193] -------------------------------------------------------
[ 604.186139] btrfs-cleaner/6669 is trying to acquire lock:
[ 604.209555] (sb_internal#2){.+.+..}, at: [<ffffffffa0042b84>] start_transaction+0x124/0x430 [btrfs]
[ 604.257100]
[ 604.257100] but task is already holding lock:
[ 604.300366] (&fs_info->cleanup_work_sem){.+.+..}, at: [<ffffffffa0048002>] btrfs_run_delayed_iputs+0x72/0x130 [btrfs]
[ 604.352989]
[ 604.352989] which lock already depends on the new lock.
[ 604.352989]
[ 604.427104]
[ 604.427104] the existing dependency chain (in reverse order) is:
[ 604.478493]
[ 604.478493] -> #1 (&fs_info->cleanup_work_sem){.+.+..}:
[ 604.529313] [<ffffffff810b2c82>] lock_acquire+0xa2/0x140
[ 604.559621] [<ffffffff81632b69>] down_read+0x39/0x4e
[ 604.589382] [<ffffffffa004db98>] btrfs_lookup_dentry+0x218/0x550 [btrfs]
[ 604.596161] btrfs: unlinked 1 orphans
[ 604.675002] [<ffffffffa006aadd>] create_subvol+0x62d/0x690 [btrfs]
[ 604.708859] [<ffffffffa006d666>] btrfs_mksubvol.isra.52+0x346/0x3a0 [btrfs]
[ 604.772466] [<ffffffffa006d7f2>] btrfs_ioctl_snap_create_transid+0x132/0x190 [btrfs]
[ 604.842245] [<ffffffffa006d8ae>] btrfs_ioctl_snap_create+0x5e/0x80 [btrfs]
[ 604.912852] [<ffffffffa00708ae>] btrfs_ioctl+0x138e/0x1990 [btrfs]
[ 604.951888] [<ffffffff8118e9b8>] do_vfs_ioctl+0x98/0x560
[ 604.989961] [<ffffffff8118ef11>] sys_ioctl+0x91/0xa0
[ 605.026628] [<ffffffff8163d569>] system_call_fastpath+0x16/0x1b
[ 605.064404]
[ 605.064404] -> #0 (sb_internal#2){.+.+..}:
[ 605.126832] [<ffffffff810b25e8>] __lock_acquire+0x1ac8/0x1b90
[ 605.163671] [<ffffffff810b2c82>] lock_acquire+0xa2/0x140
[ 605.200228] [<ffffffff8117dac6>] __sb_start_write+0xc6/0x1b0
[ 605.236818] [<ffffffffa0042b84>] start_transaction+0x124/0x430 [btrfs]
[ 605.274029] [<ffffffffa00431a3>] btrfs_start_transaction+0x13/0x20 [btrfs]
[ 605.340520] [<ffffffffa004ccfa>] btrfs_evict_inode+0x19a/0x330 [btrfs]
[ 605.378720] [<ffffffff811972c8>] evict+0xb8/0x1c0
[ 605.416057] [<ffffffff811974d5>] iput+0x105/0x210
[ 605.452373] [<ffffffffa0048082>] btrfs_run_delayed_iputs+0xf2/0x130 [btrfs]
[ 605.521627] [<ffffffffa003b5e1>] cleaner_kthread+0xa1/0x120 [btrfs]
[ 605.560520] [<ffffffff810791ee>] kthread+0xae/0xc0
[ 605.598094] [<ffffffff8163e744>] kernel_thread_helper+0x4/0x10
[ 605.636499]
[ 605.636499] other info that might help us debug this:
[ 605.636499]
[ 605.736504] Possible unsafe locking scenario:
[ 605.736504]
[ 605.801931] CPU0 CPU1
[ 605.835126] ---- ----
[ 605.867093] lock(&fs_info->cleanup_work_sem);
[ 605.898594] lock(sb_internal#2);
[ 605.931954] lock(&fs_info->cleanup_work_sem);
[ 605.965359] lock(sb_internal#2);
[ 605.994758]
[ 605.994758] *** DEADLOCK ***
[ 605.994758]
[ 606.075281] 2 locks held by btrfs-cleaner/6669:
[ 606.104528] #0: (&fs_info->cleaner_mutex){+.+...}, at: [<ffffffffa003b5d5>] cleaner_kthread+0x95/0x120 [btrfs]
[ 606.165626] #1: (&fs_info->cleanup_work_sem){.+.+..}, at: [<ffffffffa0048002>] btrfs_run_delayed_iputs+0x72/0x130 [btrfs]
[ 606.231297]
[ 606.231297] stack backtrace:
[ 606.287723] Pid: 6669, comm: btrfs-cleaner Not tainted 3.6.0-rc2-ceph-00144-g463b030 #1
[ 606.347823] Call Trace:
[ 606.376184] [<ffffffff8162a77c>] print_circular_bug+0x1fb/0x20c
[ 606.409243] [<ffffffff810b25e8>] __lock_acquire+0x1ac8/0x1b90
[ 606.441343] [<ffffffffa0042b84>] ? start_transaction+0x124/0x430 [btrfs]
[ 606.474583] [<ffffffff810b2c82>] lock_acquire+0xa2/0x140
[ 606.505934] [<ffffffffa0042b84>] ? start_transaction+0x124/0x430 [btrfs]
[ 606.539429] [<ffffffff8132babd>] ? do_raw_spin_unlock+0x5d/0xb0
[ 606.571719] [<ffffffff8117dac6>] __sb_start_write+0xc6/0x1b0
[ 606.603498] [<ffffffffa0042b84>] ? start_transaction+0x124/0x430 [btrfs]
[ 606.637405] [<ffffffffa0042b84>] ? start_transaction+0x124/0x430 [btrfs]
[ 606.670165] [<ffffffff81172e75>] ? kmem_cache_alloc+0xb5/0x160
[ 606.702144] [<ffffffffa0042b84>] start_transaction+0x124/0x430 [btrfs]
[ 606.735562] [<ffffffffa00256a6>] ? block_rsv_add_bytes+0x56/0x80 [btrfs]
[ 606.769861] [<ffffffffa00431a3>] btrfs_start_transaction+0x13/0x20 [btrfs]
[ 606.804575] [<ffffffffa004ccfa>] btrfs_evict_inode+0x19a/0x330 [btrfs]
[ 606.838756] [<ffffffff81634c6b>] ? _raw_spin_unlock+0x2b/0x40
[ 606.872010] [<ffffffff811972c8>] evict+0xb8/0x1c0
[ 606.903800] [<ffffffff811974d5>] iput+0x105/0x210
[ 606.935416] [<ffffffffa0048082>] btrfs_run_delayed_iputs+0xf2/0x130 [btrfs]
[ 606.970510] [<ffffffffa003b5d5>] ? cleaner_kthread+0x95/0x120 [btrfs]
[ 607.005648] [<ffffffffa003b5e1>] cleaner_kthread+0xa1/0x120 [btrfs]
[ 607.040724] [<ffffffffa003b540>] ? btrfs_destroy_delayed_refs.isra.102+0x220/0x220 [btrfs]
[ 607.104740] [<ffffffff810791ee>] kthread+0xae/0xc0
[ 607.137119] [<ffffffff810b379d>] ? trace_hardirqs_on+0xd/0x10
[ 607.169797] [<ffffffff8163e744>] kernel_thread_helper+0x4/0x10
[ 607.202472] [<ffffffff81635430>] ? retint_restore_args+0x13/0x13
[ 607.235884] [<ffffffff81079140>] ? flush_kthread_work+0x1a0/0x1a0
[ 607.268731] [<ffffffff8163e740>] ? gs_change+0x13/0x13
Signed-off-by: Sage Weil <sage@inktank.com>
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We expect current->journal_info to point to the trans handle we are
committing.
Signed-off-by: Sage Weil <sage@inktank.com>
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The freeze rwsem is taken by sb_start_intwrite() and dropped during the
commit_ or end_transaction(). In the async case, that happens in a worker
thread. Tell lockdep the calling thread is releasing ownership of the
rwsem and the async thread is picking it up.
XFS plays the same trick in fs/xfs/xfs_aops.c.
Signed-off-by: Sage Weil <sage@inktank.com>
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This patch adds hole punching via fallocate. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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I audited all users of btrfs_drop_extents and found that nobody actually uses
the hint_byte argument. I'm sure it was used for something at some point but
it's not used now, and the way the pinning works the disk bytenr would never be
immediately useful anyway so lets just remove it. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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This is based on Josef's "Btrfs: turbo charge fsync".
If an inode is a BTRFS_INODE_NODATASUM one, we don't need to look for csum
items any more.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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This is based on Josef's "Btrfs: turbo charge fsync".
The current btrfs checks if an inode is in log by comparing
root's last_log_commit to inode's last_sub_trans[2].
But the problem is that this root->last_log_commit is shared among
inodes.
Say we have N inodes to be logged, after the first inode,
root's last_log_commit is updated and the N-1 remained files will
be skipped.
This fixes the bug by keeping a local copy of root's last_log_commit
inside each inode and this local copy will be maintained itself.
[1]: we regard each log transaction as a subset of btrfs's transaction,
i.e. sub_trans
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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If we add a new orphan item, we should increase the atomic counter,
not decrease it. Fix it.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
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This is based on Josef's "Btrfs: turbo charge fsync".
The above Josef's patch performs very good in random sync write test,
because we won't have too much extents to merge.
However, it does not performs good on the test:
dd if=/dev/zero of=foobar bs=4k count=12500 oflag=sync
The reason is when we do sequencial sync write, we need to merge the
current extent just with the previous one, so that we can get accumulated
extents to log:
A(4k) --> AA(8k) --> AAA(12k) --> AAAA(16k) ...
So we'll have to flush more and more checksum into log tree, which is the
bottleneck according to my tests.
But we can avoid this by telling fsync the real extents that are needed
to be logged.
With this, I did the above dd sync write test (size=50m),
w/o (orig) w/ (josef's) w/ (this)
SATA 104KB/s 109KB/s 121KB/s
ramdisk 1.5MB/s 1.5MB/s 10.7MB/s (613%)
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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We will stop and restart a transaction every time we move to a different leaf
when truncating a file. This is for enospc reasons, but really we could
probably get away with doing this a little better by actually working until we
hit an ENOSPC. So add a ->failfast flag to the block_rsv and set it when we do
truncates which will fail as soon as the block rsv runs out of space, and then
at that point we can stop and restart the transaction and refill the block rsv
and carry on. This will make rm'ing of a file with lots of extents a bit
faster. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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This is based on Josef's "Btrfs: turbo charge fsync".
We should cleanup those extents after we've finished logging inode,
otherwise we may do redundant work on them.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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I hit this a couple times while working on my fsync patch (all my bugs, not
normal operation), but with my new stuff we could have new errors from cases
I have not encountered, so instead of BUG()'ing we should be WARN()'ing so
that we are notified there is a problem but the user doesn't lose their
data. We can easily commit the transaction in the case that the tree
logging fails and still be fine, so let's try and be as nice to the user as
possible. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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At least for the vm workload. Currently on fsync we will
1) Truncate all items in the log tree for the given inode if they exist
and
2) Copy all items for a given inode into the log
The problem with this is that for things like VMs you can have lots of
extents from the fragmented writing behavior, and worst yet you may have
only modified a few extents, not the entire thing. This patch fixes this
problem by tracking which transid modified our extent, and then when we do
the tree logging we find all of the extents we've modified in our current
transaction, sort them and commit them. We also only truncate up to the
xattrs of the inode and copy that stuff in normally, and then just drop any
extents in the range we have that exist in the log already. Here are some
numbers of a 50 meg fio job that does random writes and fsync()s after every
write
Original Patched
SATA drive 82KB/s 140KB/s
Fusion drive 431KB/s 2532KB/s
So around 2-6 times faster depending on your hardware. There are a few
corner cases, for example if you truncate at all we have to do it the old
way since there is no way to be sure what is in the log is ok. This
probably could be done smarter, but if you write-fsync-truncate-write-fsync
you deserve what you get. All this work is in RAM of course so if your
inode gets evicted from cache and you read it in and fsync it we'll do it
the slow way if we are still in the same transaction that we last modified
the inode in.
The biggest cool part of this is that it requires no changes to the recovery
code, so if you fsync with this patch and crash and load an old kernel, it
will run the recovery and be a-ok. I have tested this pretty thoroughly
with an fsync tester and everything comes back fine, as well as xfstests.
Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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While working on my fsync patch my fsync tester kept hitting mismatching
md5sums when I would randomly write to a prealloc'ed region, syncfs() and
then write to the prealloced region some more and then fsync() and then
immediately reboot. This is because the tree logging code will skip writing
csums for file extents who's generation is less than the current running
transaction. When we mark extents as written we haven't been updating their
generation so they were always being skipped. This wouldn't happen if you
were to preallocate and then write in the same transaction, but if you for
example prealloced a VM you could definitely run into this problem. This
patch makes my fsync tester happy again. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Swinging this pendulum back the other way. We've been allocating chunks up
to 2% of the disk no matter how much we actually have allocated. So instead
fix this calculation to only allocate chunks if we have more than 80% of the
space available allocated. Please test this as it will likely cause all
sorts of ENOSPC problems to pop up suddenly. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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There is a completely impossible situation to hit where you can preallocate
a file, fsync it, write into the preallocated region, have the transaction
commit twice and then fsync and then immediately lose power and lose all of
the contents of the write. This patch fixes this just so I feel better
about the situation and because it is lightweight, we just update the
last_trans when we finish an ordered IO and we don't update the inode
itself. This way we are completely safe and I feel better. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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The btrfs send code was assuming the offset of the file item into the
extent translated to bytes on disk. If we're compressed, this isn't
true, and so it was off into extents owned by other files.
It was also improperly handling inline extents. This solves a crash
where we may have gone past the end of the file extent item by not
testing early enough for an inline extent. It also solves problems
where we have a whole between the end of the inline item and the start
of the full extent.
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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We can't do the deleted/reused logic for top/root inodes as it would
create a stream that tries to delete and recreate the root dir.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We have to ignore inode/space cache objects in send/receive.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We need to pass the root that we determined earlier to iterate_inode_ref.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Used the wrong compare operator here.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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The previous check was working fine, but this check should be
easier to read. Also, we could theoritically have some exotic
bugs with the previous checks.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Both were leaked in case of error.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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A leftover from older code and unused now.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Doing some code cleanups as suggested by Arne.
Changes do not change any logic.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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As the subject already said, add/fix comments.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Updating send_progress in process_recorded_refs was not correct.
It got updated too early in the cur_inode_new_gen case.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Btrfs send/receive uses the aux field to store inode numbers. On
32 bit machines this may become a problem.
Also fix all users of ulist_add and ulist_add_merged.
Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We can't easily use the index of the radix tree for inums as the
radix tree uses 32bit indexes on 32bit kernels. For 32bit kernels,
we now use the lower 32bit of the inum as index and an additional
list to store multiple entries per radix tree entry.
Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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When everything is done, name_cache_free is called which however
forgot to call kfree on the cache entries.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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If we break, we may miss the clone from send_root which we prefer
over all other clones.
Commit is a result of Arne's review.
Reported-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Don't have a seperate return path for the mentioned case. Now
we do the same "take lowest inode/offset" logic for all found clones.
Commit is a result of Arne's review.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Make sure to never get in trouble due to the backref_ctx
which was on the stack before.
Commit is a result of Arne's review.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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The new name should be easier to understand/read.
Commit is a result of Arne's review.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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use_list is a leftover and unused.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We only added the parent for the new position of a moved dir.
We also need to add the old parent of the moved dir.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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fs_path_remove is not used at the moment due to a previous patch.
Remove it for now (with #if 0) to avoid compile warnings.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We missed that check which resultet in all refs with the same name
being reported as first_ref.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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When the current inodes inum is smaller then the inum of the
parent directory strange things were happending due to wrong
path resolution and other bugs. Fix this with a new approach
for the problem.
Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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We need rdev in the next commit.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
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Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree update from Greg Kroah-Hartman:
"Here is the big staging tree update for the 3.7-rc1 merge window.
There are a few patches in here that are outside of the staging area,
namely HID and IIO patches, but all of them have been acked by the
relevant subsystem maintainers. The IIO stuff is still coming in
through this tree as it hasn't entirely moved out of the staging tree,
but is almost there.
Other than that, there wa a ton of work on the comedi drivers to make
them more readable and the correct style. Doing that removed a lot of
code, but we added a new driver to the staging tree, so we didn't end
up with a net reduction this time around:
662 files changed, 51649 insertions(+), 26582 deletions(-)
All of these patches have been in the linux-next tree already.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1094 commits)
staging: comedi: jr3_pci: fix iomem dereference
staging: comedi: drivers: use comedi_fc.h cmdtest helpers
Staging: winbond: usb_free_urb(NULL) is safe
Staging: winbond: checkpatch cleanup
Staging: winbond: Removed undesired spaces, lines and tabs
Staging: winbond: Typo corrections in comments
Staging: winbond: Changed c99 comments to c89 comments
staging: r8712u: Do not queue cloned skb
staging: comedi: ni_mio_common: always lock in ni_ai_poll()
staging: comedi: s626: add FIXME comment
staging: comedi: s626: don't dereference insn->data
staging: comedi: s526: fix if() check in s526_gpct_winsn()
staging: comedi: s626: cleanup comments in s626_initialize()
staging: comedi: s626: remove clear of kzalloc'ed data
staging: comedi: s626: remove 'WDInterval' from private data
staging: comedi: s626: remove 'ChargeEnabled' from private data
staging: comedi: s626: remove 'IsBoardRevA' comment
staging: comedi: s626: #if 0 out the "SAA7146 BUG WORKAROUND"
staging: comedi: s626: remove 'allocatedBuf' from private data
staging: comedi: s626: add final attach message
...
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All those are media modules, mostly digital television drivers.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core merge from Greg Kroah-Hartman:
"Here is the big driver core update for 3.7-rc1.
A number of firmware_class.c updates (as you saw a month or so ago),
and some hyper-v updates and some printk fixes as well. All patches
that are outside of the drivers/base area have been acked by the
respective maintainers, and have all been in the linux-next tree for a
while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
memory: tegra{20,30}-mc: Fix reading incorrect register in mc_readl()
device.h: Add missing inline to #ifndef CONFIG_PRINTK dev_vprintk_emit
memory: emif: Add ifdef CONFIG_DEBUG_FS guard for emif_debugfs_[init|exit]
Documentation: Fixes some translation error in Documentation/zh_CN/gpio.txt
Documentation: Remove 3 byte redundant code at the head of the Documentation/zh_CN/arm/booting
Documentation: Chinese translation of Documentation/video4linux/omap3isp.txt
device and dynamic_debug: Use dev_vprintk_emit and dev_printk_emit
dev: Add dev_vprintk_emit and dev_printk_emit
netdev_printk/netif_printk: Remove a superfluous logging colon
netdev_printk/dynamic_netdev_dbg: Directly call printk_emit
dev_dbg/dynamic_debug: Update to use printk_emit, optimize stack
driver-core: Shut up dev_dbg_reatelimited() without DEBUG
tools/hv: Parse /etc/os-release
tools/hv: Check for read/write errors
tools/hv: Fix exit() error code
tools/hv: Fix file handle leak
Tools: hv: Implement the KVP verb - KVP_OP_GET_IP_INFO
Tools: hv: Rename the function kvp_get_ip_address()
Tools: hv: Implement the KVP verb - KVP_OP_SET_IP_INFO
Tools: hv: Add an example script to configure an interface
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver merge from Greg Kroah-Hartman:
"Here is the "big" char/misc driver tree update for the 3.7-rc1 merge
window.
Nothing major, just a number of driver updates and fixes, all of which
have been in the linux-next releases for a while now either in my
tree, or in Andrew's (the lis3l driver changes came from his tree last
week).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'char-misc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (52 commits)
drivers/misc/lis3lv02d/lis3lv02d_i2c.c: add lis3lv02d device tree init
drivers/misc/lis3lv02d/lis3lv02d_spi.c: add lis3lv02d device tree init
drivers/misc/lis3lv02d: remove lis3lv02d driver DT init
drivers/misc/lis3lv02d/lis3lv02d_spi.c: add DT matching table passthru code
drivers/misc/lis3lv02d: add generic DT matching code
lis3lv02d: fix some comments specific to lis331dlh driver
MISC: hpilo, remove pci_disable_device
pcmcia: synclink_cs: fix potential tty NULL dereference
drivers/char/mmtimer.c: Remove useless kfree
drivers/char: removes unnecessary semicolon
char/misc: remove CONFIG_EXPERIMENTAL dependencies
mei: don't print buffer as a string
mei: struct mei_message_data doesn't have to be packed
mei: add error messages for open count errors
misc: use module_spi_driver
tifm: use module_pci_driver
misc/at25, dt: Improve at25 SPI eeprom device tree bindings.
mei: add lynx point pci device ids
mei: fix max number of open handles
mei: rename struct pci_dev *mei_device to mei_pdev
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Pull clk framework update from Michael Turquette:
"The common clk framework changes for 3.7 are dominated by ARM platform
ports to the framework along with one MIPS port, one MFD port, one
minor framework enhancement and one helper function for platforms
expressing their clock data through device tree."
* tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux:
clk: add of_clk_src_onecell_get() support
clk: ux500: Define smp_twd clock for u8500
mfd: dbx500: Provide a more accurate smp_twd clock
clk: ux500: Support for prmcu_rate clock
clk: Provide option for clk_get_rate to issue hw for new rate
clock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator.
ARM: ux500: Switch to use common clock framework
clk: ux500: Clock definitions for u8500
clk: ux500: First version of clock definitions for ux500
clk: ux500: Adapt PRCMU and PRCC clocks for common clk
clk: versatile: make config option boolean
clk: add Loongson1B clock support
arm: mmp: make all SOCs use common clock by default
clk: mmp: add clock definition for mmp2
clk: mmp: add clock definition for pxa910
clk: mmp: add clock definition for pxa168
clk: mmp: add mmp specific clocks
clk: convert ARM RealView to common clk
clk: prima2: move from arch/arm/mach to drivers/clk
ARM: PRIMA2: convert to common clk and finish full clk tree
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