zev: bugfix: zev_update_blockflag() without mutex

The function zev_update_blockflag() requires callers to
hold the zev_mutex, but zev_queue_new() called it without
holding zev_mutex.

(cherry picked

zev: bugfix: zev_update_blockflag() without mutex

The function zev_update_blockflag() requires callers to
hold the zev_mutex, but zev_queue_new() called it without
holding zev_mutex.

(cherry picked from commit 090d3ec73612995a4ea34f67051c3abb1f1cdac2)

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5914 pipe generates inodes with ino > 4G

(cherry picked from commit eb25bab59682eceaa6ddfbb5ad3fa27f3e780abf)

zev: filter events outside of HiDrive spaces

To reduce load on the beaver daemon we do not report events
that are not from a production HiDrive filesystem containing
customer data, recognized by the

zev: filter events outside of HiDrive spaces

To reduce load on the beaver daemon we do not report events
that are not from a production HiDrive filesystem containing
customer data, recognized by the string "_root" anyhere in
the dataset name.

(cherry picked from commit f13bc8390f84fee6da73e746d0d788b9fa771e3d)

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zev: dsl_dataset_is_snapshot() -> dsl_dataset->ds_is_snapshot

(cherry picked from commit 901d4aabbe67d77d9da504b6e4b93bff07e8e451)

zev fix: ds_phys was replaced by dsl_dataset_phys().

replaced by commit 8d62b2231107
commit msg: 5314 Remove "dbuf phys" db->db_data pointer
aliases in ZFS

(cherry picked from commit 0358d6fdc001dc

zev fix: ds_phys was replaced by dsl_dataset_phys().

replaced by commit 8d62b2231107
commit msg: 5314 Remove "dbuf phys" db->db_data pointer
aliases in ZFS

(cherry picked from commit 0358d6fdc001dc06b41229927fa1b0b0910edbff)

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zev: added inode info of clobbered files (rename)

When a file is renamed, another file might previously have had
the new name and will thus be clobbered. In this case, the inode
information of the

zev: added inode info of clobbered files (rename)

When a file is renamed, another file might previously have had
the new name and will thus be clobbered. In this case, the inode
information of the clobbered file will be added to the zev rename
event. Note that the file might still have other names.

(cherry picked from commit 9ed9bfe91df7eb8d10c125f9f04d3ec82010930a)

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zev: add l0 checksum to truncates at offset 4096

Since the beaverd doesn't store l0 checksums for files larger than
4k, we need a way to get that checksum if a file shrinks to 4k.
This worked if it

zev: add l0 checksum to truncates at offset 4096

Since the beaverd doesn't store l0 checksums for files larger than
4k, we need a way to get that checksum if a file shrinks to 4k.
This worked if it was shrunk to < 4k already, but now we've added
a special handling for truncates to exactly 4k file size.

(cherry picked from commit 1a8183867382c3f077234868042bb9963d638749)

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zev: fixed off-by-one error in cache invalidation

If only the first byte in a 4k block was written, the cache invalidation
function would erroneously not expire that block's checksum.

(cherry picke

zev: fixed off-by-one error in cache invalidation

If only the first byte in a 4k block was written, the cache invalidation
function would erroneously not expire that block's checksum.

(cherry picked from commit cefd41bc3095dacd89bd6a0a458d5873ff75e19a)

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zev: bugfix: used checksum cache without mutex

In some cases the checksum cache for file checksums was used without
getting the appropriate mutex first. This could crash if another thread
was chang

zev: bugfix: used checksum cache without mutex

In some cases the checksum cache for file checksums was used without
getting the appropriate mutex first. This could crash if another thread
was changing the list while it was being used.

(cherry picked from commit 33d4c3485b7025e40bfc2899cbb35cbaac7543e1)

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Force nfs4_trigger_getattr() to always trigger a mount, except in the
referrals case.

The previous behavior caused stat to return wrong information.

Redmine issue #2108.

(cherry picked from commit

Force nfs4_trigger_getattr() to always trigger a mount, except in the
referrals case.

The previous behavior caused stat to return wrong information.

Redmine issue #2108.

(cherry picked from commit e1065d0101dfed0014d732d8efaf7d63788c073d)

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zev: umount events include info of covered inode

A ZFS umount will now be reported including information of
the inode that the filesystem was mounted over. (the mountpoint
that will now become visib

zev: umount events include info of covered inode

A ZFS umount will now be reported including information of
the inode that the filesystem was mounted over. (the mountpoint
that will now become visible again)

(cherry picked from commit 808e6c04e8d170f4444fe287cf08403bdf1a757c)

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zev: off-by-one bug fixed for returning checksums

Changes to a file at only the very first byte of a level 0 block
did not return the corresponding checksum(s).

(cherry picked from commit 94c406e7e

zev: off-by-one bug fixed for returning checksums

Changes to a file at only the very first byte of a level 0 block
did not return the corresponding checksum(s).

(cherry picked from commit 94c406e7ec5a900992d4978ecf7de5c2ac48ec7b)

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zev: bugfix: blocked at global queue size limit

Even if all queues where non-blocking, reaching the global queue
size limit made the system block ZFS calls.

Now, old messages are discarded until th

zev: bugfix: blocked at global queue size limit

Even if all queues where non-blocking, reaching the global queue
size limit made the system block ZFS calls.

Now, old messages are discarded until the new one fits into all
queues. A small optimization was added so we don't have to
iterate over all queues to find out whether we have any blocking
queues.

(cherry picked from commit ff713486fb8b8b11e70a36d5225a9933482e4918)

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zev: bugfix: lowering global queue size limit

When the global queue size limit was lowered, the individual
queue size maxima where not lowered accordingly.

(cherry picked from commit d114cf321a2cce

zev: bugfix: lowering global queue size limit

When the global queue size limit was lowered, the individual
queue size maxima where not lowered accordingly.

(cherry picked from commit d114cf321a2ccebeb2e9ad7d2745ff3af2f3f7ce)

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zev: option to create empty queues

New zev queues where filled with as many events as would fit from
the global event backlog. Now a flag can be set to skip this step.
The new queue will then be em

zev: option to create empty queues

New zev queues where filled with as many events as would fit from
the global event backlog. Now a flag can be set to skip this step.
The new queue will then be empty upon creation and will only receive
events newer than the queue itself.

(cherry picked from commit 6970b7d9a5856021f673d67e8ba9f061c20eac54)

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zev: create and symlink events now inlude checksum

When a symlink or another new file is created, the resulting
zev events now include a signature for the new file.

Symlinks are treated like files

zev: create and symlink events now inlude checksum

When a symlink or another new file is created, the resulting
zev events now include a signature for the new file.

Symlinks are treated like files that contain the "link" part
as text. Block and character devices have a signature based
on the format string "%c%d,%d", with 'b'/'c', getmajor() and
getminor() as values. All other file types will result in an
all-zero signature.

Hardlinks create a new directory entry, but no new inode.
Therefore, rdlink events still do not contain a signature.

(cherry picked from commit d27baf235074c236575a6c7ec7d3fe89a7d8af6e)

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zev: bugfix: memory leak in error condition

zev gives an error when checksums beyond EOF are requested.
There was a memory leak in that case: the result buffer was
not freed.

Additionally, the erro

zev: bugfix: memory leak in error condition

zev gives an error when checksums beyond EOF are requested.
There was a memory leak in that case: the result buffer was
not freed.

Additionally, the error message is now more verbose, which
might help in finding the actual bug: why were we asked
for checksums beyond EOF, in the first place? The bug can't
be reproduced, so we're putting in better diagnostics and
see whether it'll reappear.

(cherry picked from commit c09b3f1ab4e2f1368ff689a0c91f5e9b0fa45bb2)

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zev: bugfix: trim queue after reading messages

The read() handler did not shorten the message queue after
a successfull read, relying on other places to do that.
But when the queue is full read() is

zev: bugfix: trim queue after reading messages

The read() handler did not shorten the message queue after
a successfull read, relying on other places to do that.
But when the queue is full read() is the only place that
can still perform work, every other thread blocks until the
queue is smaller. So read() also needs to trim the queue
down immediately.

(cherry picked from commit 578003757a2bbaa68f18d8d2afd161505e7e8fa2)

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zev: some zev code wrapped in _KERNEL ifdef so libzpool will compile. (forgot to add file)

(cherry picked from commit ddd572b54bd166d5c21bb46642107a95f09782b9)

zev: some zev code wrapped in _KERNEL ifdef so libzpool will compile.

(cherry picked from commit 1982bded778e89167a56b4cd673a668767f72ab4)

zev: fix include path for libzpool

(cherry picked from commit 95f8256988695affb5482cf895f73a6f443332e5)

zev: modified LRU code to use OS list functions

(cherry picked from commit 86d836510436987c39115866494430f9bb7b7ba9)

zev: add txg to applicable event type records

(cherry picked from commit be5f9b3c721e52d475c3d7009982992c01c9140e)

zev: bug fix: cache expiry crash fixed

(cherry picked from commit 6a7145cb6fa4e2c38014ea2fa98e677c6b49d090)

zev: ioctl() to get signatures for an open file

There's a new ioctl() ZEV_IOC_GET_FILE_SIGNATURES to get
beaver signatures for a data range in an open file. The
provided buffer has to be large enou

zev: ioctl() to get signatures for an open file

There's a new ioctl() ZEV_IOC_GET_FILE_SIGNATURES to get
beaver signatures for a data range in an open file. The
provided buffer has to be large enough to hold the parameters
and the signatures.

zevadm can display a file's signatures using 'zevadm -c <filename>'

(cherry picked from commit 6b4c2eb9a413da85091774d0095ad61946ae043d)

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