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Update many return and assignment statements to follow the convention
of using the SET_ERROR macro when returning a hard-coded non-zero
value from a function. This aids debugging by recording the error
codes in the debug log.
Reviewed-by: George Melikov <[email protected]>
Reviewed-by: Giuseppe Di Natale <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Signed-off-by: Ned Bass <[email protected]>
Closes #6441
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When iterating over the input nvlist in dsl_props_set_sync_impl() when we don't
preserve the nvpair name before looking up ZPROP_VALUE, so when we later go to
process it nvpair_name() is always "value" and not the actual property name.
This fixes a couple of bugs in zfs_ioc_recv():
* Received properties were not restored correctly when failing to receive an
incremental send stream
* Received properties were not completely replaced by the new ones when
successfully receiving an incremental send stream
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: loli10K <[email protected]>
Closes #5497
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On error dsl_prop_get_all_ds() does not free the nvlist it allocates.
This behavior may have been intentional when originally written
but is atypical and often confusing. Since no callers rely on this
behavior the function has been updated to always free the nvlist
on error.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: BearBabyLiu <[email protected]>
Closes #5320
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Since they're allocated with spa_strdup(), they should be freed with
spa_strfree() so the proper length buffer is freed.
Reviewed-by: Richard Yao <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Tim Chase <[email protected]>
Closes #5082
Closes #5086
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Reviewed by: George Wilson <[email protected]>
Reviewed by: Prakash Surya <[email protected]>
Reviewed by: Igor Kozhukhov <[email protected]>
Approved by: Dan McDonald <[email protected]>
Ported-by: Brian Behlendorf <[email protected]>
OpenZFS-issue: https://www.illumos.org/issues/6314
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d6160ee
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6681 zfs list burning lots of time in dodefault() via dsl_prop_*
Reviewed by: Patrick Mooney <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Dan McDonald <[email protected]>
Approved by: Matthew Ahrens <[email protected]>
References:
https://www.illumos.org/issues/6681
https://github.com/illumos/illumos-gate/commit/d09e447
Ported-by: kernelOfTruth [email protected]
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #4406
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6171 dsl_prop_unregister() slows down dataset eviction.
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Prakash Surya <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
https://www.illumos.org/issues/6171
https://github.com/illumos/illumos-gate/commit/03bad06
Porting notes:
- Conflicts
- 3558fd7 Prototype/structure update for Linux
- 2cf7f52 Linux compat 2.6.39: mount_nodev()
- 13fe019 Illumos #3464
- 241b541 Illumos 5959 - clean up per-dataset feature count code
- dsl_prop_unregister() preserved until out of tree consumers
like Lustre can transition to dsl_prop_unregister_all().
- Fixing 'space or tab at end of line' in include/sys/dsl_dataset.h
Ported-by: kernelOfTruth [email protected]
Signed-off-by: Brian Behlendorf <[email protected]>
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4951 ZFS administrative commands should use reserved space, not with ENOSPC
Reviewed by: John Kennedy <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Christopher Siden <[email protected]>
Reviewed by: Dan McDonald <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References:
https://www.illumos.org/issues/4373
https://github.com/illumos/illumos-gate/commit/7d46dc6
Ported by: Brian Behlendorf <[email protected]>
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5531 NULL pointer dereference in dsl_prop_get_ds()
Author: Justin T. Gibbs <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Dan McDonald <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Bayard Bell <[email protected]>
Approved by: Robert Mustacchi <[email protected]>
References:
https://www.illumos.org/issues/5531
https://github.com/illumos/illumos-gate/commit/e57a022
Ported-by: Chris Dunlop <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
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5056 ZFS deadlock on db_mtx and dn_holds
Author: Justin Gibbs <[email protected]>
Reviewed by: Will Andrews <[email protected]>
Reviewed by: Matt Ahrens <[email protected]>
Reviewed by: George Wilson <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
https://www.illumos.org/issues/5056
https://github.com/illumos/illumos-gate/commit/bc9014e
Porting Notes:
sa_handle_get_from_db():
- the original patch includes an otherwise unmentioned fix for a
possible usage of an uninitialised variable
dmu_objset_open_impl():
- Under Illumos list_link_init() is the same as filling a list_node_t
with NULLs, so they don't notice if they miss doing list_link_init()
on a zero'd containing structure (e.g. allocated with kmem_zalloc as
here). Under Linux, not so much: an uninitialised list_node_t goes
"Boom!" some time later when it's used or destroyed.
dmu_objset_evict_dbufs():
- reduce stack usage using kmem_alloc()
Ported-by: Chris Dunlop <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
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5314 Remove "dbuf phys" db->db_data pointer aliases in ZFS
Author: Justin T. Gibbs <[email protected]>
Reviewed by: Andriy Gapon <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Will Andrews <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
https://www.illumos.org/issues/5314
https://github.com/illumos/illumos-gate/commit/c137962
Ported-by: Chris Dunlop <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
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5310 Remove always true tests for non-NULL ds->ds_phys
Author: Justin T. Gibbs <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Will Andrews <[email protected]>
Reviewed by: Andriy Gapon <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
https://www.illumos.org/issues/5310
https://github.com/illumos/illumos-gate/commit/d808a4f
Ported-by: Chris Dunlop <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
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By marking DMU transaction processing contexts with PF_FSTRANS
we can revert the KM_PUSHPAGE -> KM_SLEEP changes. This brings
us back in line with upstream. In some cases this means simply
swapping the flags back. For others fnvlist_alloc() was replaced
by nvlist_alloc(..., KM_PUSHPAGE) and must be reverted back to
fnvlist_alloc() which assumes KM_SLEEP.
The one place KM_PUSHPAGE is kept is when allocating ARC buffers
which allows us to dip in to reserved memory. This is again the
same as upstream.
Signed-off-by: Brian Behlendorf <[email protected]>
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When fetching property values of snapshots, a check against the head
dataset type must be performed. Previously, this additional check was
performed only when fetching "version", "normalize", "utf8only" or "case".
This caused the ZPL properties "acltype", "exec", "devices", "nbmand",
"setuid" and "xattr" to be erroneously displayed with meaningless values
for snapshots of volumes. It also did not allow for the display of
"volsize" of a snapshot of a volume.
This patch adds the headcheck flag paramater to zfs_prop_valid_for_type()
and zprop_valid_for_type() to indicate the check is being done
against a head dataset's type in order that properties valid only for
snapshots are handled correctly. This allows the the head check in
get_numeric_property() to be performed when fetching a property for
a snapshot.
Signed-off-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2265
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3742 zfs comments need cleaner, more consistent style
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Eric Schrock <[email protected]>
Approved by: Christopher Siden <[email protected]>
References:
https://www.illumos.org/issues/3742
illumos/illumos-gate@f7170741490edba9d1d9c697c177c887172bc741
Ported-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #1775
Porting notes:
1. The change to zfs_vfsops.c was dropped because it involves
zfs_mount_label_policy, which does not exist in the Linux port.
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3699 zfs hold or release of a non-existent snapshot does not output error
3739 cannot set zfs quota or reservation on pool version < 22
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: Eric Shrock <[email protected]>
Approved by: Dan McDonald <[email protected]>
References:
https://www.illumos.org/issues/3699
https://www.illumos.org/issues/3739
illumos/illumos-gate@013023d4ed2f6d0cf75380ec686a4aac392b4e43
Ported-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #1775
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3598 want to dtrace when errors are generated in zfs
Reviewed by: Dan Kimmel <[email protected]>
Reviewed by: Adam Leventhal <[email protected]>
Reviewed by: Christopher Siden <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References:
https://www.illumos.org/issues/3598
illumos/illumos-gate@be6fd75a69ae679453d9cda5bff3326111e6d1ca
Ported-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #1775
Porting notes:
1. include/sys/zfs_context.h has been modified to render some new
macros inert until dtrace is available on Linux.
2. Linux-specific changes have been adapted to use SET_ERROR().
3. I'm NOT happy about this change. It does nothing but ugly
up the code under Linux. Unfortunately we need to take it to
avoid more merge conflicts in the future. -Brian
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The recent sync task restructuring in 13fe019 introduced several
new symbols which should be exported for use by consumers such
as Lustre.
Signed-off-by: Brian Behlendorf <[email protected]>
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3464 zfs synctask code needs restructuring
Reviewed by: Dan Kimmel <[email protected]>
Reviewed by: Adam Leventhal <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: Christopher Siden <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
References:
https://www.illumos.org/issues/3464
illumos/illumos-gate@3b2aab18808792cbd248a12f1edf139b89833c13
Ported-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1495
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2882 implement libzfs_core
2883 changing "canmount" property to "on" should not always remount dataset
2900 "zfs snapshot" should be able to create multiple, arbitrary snapshots at once
Reviewed by: George Wilson <[email protected]>
Reviewed by: Chris Siden <[email protected]>
Reviewed by: Garrett D'Amore <[email protected]>
Reviewed by: Bill Pijewski <[email protected]>
Reviewed by: Dan Kruchinin <[email protected]>
Approved by: Eric Schrock <[email protected]>
References:
https://www.illumos.org/issues/2882
https://www.illumos.org/issues/2883
https://www.illumos.org/issues/2900
illumos/illumos-gate@4445fffbbb1ea25fd0e9ea68b9380dd7a6709025
Ported-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1293
Porting notes:
WARNING: This patch changes the user/kernel ABI. That means that
the zfs/zpool utilities built from master are NOT compatible with
the 0.6.2 kernel modules. Ensure you load the matching kernel
modules from master after updating the utilities. Otherwise the
zfs/zpool commands will be unable to interact with your pool and
you will see errors similar to the following:
$ zpool list
failed to read pool configuration: bad address
no pools available
$ zfs list
no datasets available
Add zvol minor device creation to the new zfs_snapshot_nvl function.
Remove the logging of the "release" operation in
dsl_dataset_user_release_sync(). The logging caused a null dereference
because ds->ds_dir is zeroed in dsl_dataset_destroy_sync() and the
logging functions try to get the ds name via the dsl_dataset_name()
function. I've got no idea why this particular code would have worked
in Illumos. This code has subsequently been completely reworked in
Illumos commit 3b2aab1 (3464 zfs synctask code needs restructuring).
Squash some "may be used uninitialized" warning/erorrs.
Fix some printf format warnings for %lld and %llu.
Apply a few spa_writeable() changes that were made to Illumos in
illumos/illumos-gate.git@cd1c8b8 as part of the 3112, 3113, 3114 and
3115 fixes.
Add a missing call to fnvlist_free(nvl) in log_internal() that was added
in Illumos to fix issue 3085 but couldn't be ported to ZoL at the time
(zfsonlinux/zfs@9e11c73) because it depended on future work.
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This warning indicates the incorrect use of KM_SLEEP in a call
path which must use KM_PUSHPAGE to avoid deadlocking in direct
reclaim. See commit b8d06fca089fae4680c3a552fc55c512bfb02202
for additional details.
SPL: Fixing allocation for task txg_sync (6093) which
used GFP flags 0x297bda7c with PF_NOFS set
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #917
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Differences between how paging is done on Solaris and Linux can cause
deadlocks if KM_SLEEP is used in any the following contexts.
* The txg_sync thread
* The zvol write/discard threads
* The zpl_putpage() VFS callback
This is because KM_SLEEP will allow for direct reclaim which may result
in the VM calling back in to the filesystem or block layer to write out
pages. If a lock is held over this operation the potential exists to
deadlock the system. To ensure forward progress all memory allocations
in these contexts must us KM_PUSHPAGE which disables performing any I/O
to accomplish the memory allocation.
Previously, this behavior was acheived by setting PF_MEMALLOC on the
thread. However, that resulted in unexpected side effects such as the
exhaustion of pages in ZONE_DMA. This approach touchs more of the zfs
code, but it is more consistent with the right way to handle these cases
under Linux.
This is patch lays the ground work for being able to safely revert the
following commits which used PF_MEMALLOC:
21ade34 Disable direct reclaim for z_wr_* threads
cfc9a5c Fix zpl_writepage() deadlock
eec8164 Fix ASSERTION(!dsl_pool_sync_context(tx->tx_pool))
Signed-off-by: Richard Yao <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #726
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Principly these symbols were exported to get access to the
dsl_prop_register/dsl_prop_unregister functions. They allow
us to cleanly register a callback which is called when a
dataset property is modified.
Signed-off-by: Brian Behlendorf <[email protected]>
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Generally it's a good idea to use enums for switch statements,
but in this case it causes warning because the enum is really a
set of flags. These flags are OR'ed together in some cases
resulting in values which are not part of the original enum.
This causes compiler warning such as this about invalid cases.
error: case value ‘33’ not in enumerated type ‘zprop_source_t’
To handle this we simply case the enum to an int for the switch
statement. This leaves all other enum type checking in place
and effectively disabled these warnings.
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Setup linux kernel module support, this includes:
- zfs context for kernel/user
- kernel module build system integration
- kernel module macros
- kernel module symbol export
- kernel module options
Signed-off-by: Brian Behlendorf <[email protected]>
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Gcc -Wall warn: 'missing parenthesis'
Signed-off-by: Brian Behlendorf <[email protected]>
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Gcc ASSERT() missing cases are impossible
Signed-off-by: Brian Behlendorf <[email protected]>
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