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| * Revert "fix l2arc compression buffers leak"Tim Chase2015-06-111-55/+10
| | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 037763e44e0f6d7284e9328db988a89fdc975a4e in preparation for the illumos 5497 "lock contention on arcs_mtx" patch which includes a fix for this very problem. ZoL had picked up a subset of the illumos 5497 patch to deal with the l2arc compression buffer leak. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
| * Revert "arc_evict, arc_evict_ghost: reduce stack usage using kmem_zalloc"Tim Chase2015-06-111-20/+12
|/ | | | | | | | | This reverts commit 16fcdea36340c658b4557fd34a74915fd618f7a6 in preparation for the illumos 5497 "lock contention on arcs_mtx" patch which eliminates "marker" within the ARC code. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Remove unused variable in vdev_add_child()Brian Behlendorf2015-06-111-2/+1
| | | | | | | | | | | | Commit c3520e7 restructured vdev_add_child() in such a way that the spa variable was unused during non-debug builds. This is consistent with the upstream illumos code but because ZoL, unlike illumos, is built with all compiler warnings enabled this causes a legitimate warning. Revert this hunk of the patch to keep the build clean. Signed-off-by: Brian Behlendorf <[email protected]> Issue #3432
* Illumos 5818 - zfs {ref}compressratio is incorrect with 4k sector sizeMatthew Ahrens2015-06-107-33/+45
| | | | | | | | | | | | | | | | | 5818 zfs {ref}compressratio is incorrect with 4k sector size Reviewed by: Alex Reece <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Steven Hartland <[email protected]> Approved by: Albert Lee <[email protected]> References: https://www.illumos.org/issues/5818 https://github.com/illumos/illumos-gate/commit/81cd5c5 Ported-by: Don Brady <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3432
* Illumos 5269 - zpool import slowArne Jansen2015-06-0910-60/+240
| | | | | | | | | | | | | | | | 5269 zpool import slow Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Dan McDonald <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5269 https://github.com/illumos/illumos-gate/commit/12380e1e Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3396
* Improve on the ZFS events documentationTurbo Fredriksson2015-06-093-12/+212
| | | | | | | | | | | * Add information about the 'zpool events' command in zpool(8). * More events and payloads defined in zfs-events(5). * I/O Stages and I/O Flags sections added. * Remove unused legacy "zio_deadline" payload define. Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3467
* dmu_objset_userquota_get_ids uses dn_bonus unsafelyNed Bass2015-06-051-3/+17
| | | | | | | | | | | | | | The function dmu_objset_userquota_get_ids() checks and uses dn->dn_bonus outside of dn_struct_rwlock. If the dnode is being freed then the bonus dbuf may be in the process of getting evicted. In this case there is a race that may cause dmu_objset_userquota_get_ids() to access the dbuf after it has been destroyed. To prevent this, ensure that when we are using the bonus dbuf we are either holding a reference on it or have taken dn_struct_rwlock. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3443
* dbuf_try_add_ref minor bug fixesNed Bass2015-06-051-2/+2
| | | | | | | | | | | | | - Don't check db->bb_blkid, but use the blkid argument instead. Checking db->db_blkid may be unsafe since we doesn't yet have a hold on the dbuf so its validity is unknown. - Call mutex_exit() on found_db, not db, since it's not certain that they point to the same dbuf, and the mutex was taken on found_db. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #3443
* SYSV init script fixes.Turbo Fredriksson2015-06-054-17/+35
| | | | | | | | | | | | | | | | | | | | | * Change the order of the function library check/load. Redhat based system _can_ have a /lib/lsb/init-functions file (from the redhat-lsb-core package), but it's only partially what we can use. Instead, look for that file last, giving the script a chance to catch the 'real' distribution file. * Filter out dashes and dots in dataset name in read_mtab(). * Get rid of 'awk' entirely. This is usually in /usr, which might not be availible. * Get rid of the 'find /dev/disk/by-*' (find is on /usr, which might not be availible). Instead use echo in a for loop. * Rebuild scripts if any of the *.in files changed. * Move the sed part that filters out duplicates inside the check fo valid variable. Signed-off-by: Turbo Fredriksson [email protected] Signed-off-by: Brian Behlendorf <[email protected]> Closes #3463 Closes #3457
* Base init scripts for SYSV systemsTurbo Fredriksson2015-05-2816-792/+1473
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Based on the init scripts included with Debian GNU/Linux, then take code from the already existing ones, trying to merge them into one set of scripts that will work for 'everyone' for better maintainability. * Add configurable variables to control the workings of the init scripts: * ZFS_INITRD_PRE_MOUNTROOT_SLEEP Set a sleep time before we load the module (used primarily by initrd scripts to allow for slower media (such as USB devices etc) to be availible before we load the zfs module). * ZFS_INITRD_POST_MODPROBE_SLEEP Set a timed sleep in the initrd to after the load of the zfs module. * ZFS_INITRD_ADDITIONAL_DATASETS To allow for mounting additional datasets in the initrd. Primarily used in initrd scripts to allow for when filesystem needed to boot (such as /usr, /opt, /var etc) isn't directly under the root dataset. * ZFS_POOL_EXCEPTIONS Exclude pools from being imported (in the initrd and/or init scripts). * ZFS_DKMS_ENABLE_DEBUG, ZFS_DKMS_ENABLE_DEBUG_DMU_TX, ZFS_DKMS_DISABLE_STRIP Set to control how dkms should build the dkms packages. * ZPOOL_IMPORT_PATH Set path(s) where "zpool import" should import pools from. This was previously the job of "USE_DISK_BY_ID" (which is still used for backwards compatibility) but was renamed to allow for better control of import path(s). * If old USE_DISK_BY_ID is set, but not new ZPOOL_IMPORT_PATH, then we set ZPOOL_IMPORT_PATH to sane defaults just to be on the safe side. * ZED_ARGS To allow for local options to zed without having to change the init script. * The import function, do_import(), imports pools by name instead of '-a' for better control of pools to import and from where. * If USE_DISK_BY_ID is set (for backwards compatibility), but isn't 'yes' then ignore it. * If pool(s) isn't found with a simple "zpool import" (seen it happen), try looking for them in /dev/disk/by-id (if it exists). Any duplicates (pools found with both commands) is filtered out. * IF we have found extra pool(s) this way, we must force USE_DISK_BY_ID so that the first, simple "zpool import $pool" is able to find it. * Fallback on importing the pool using the cache file (if it exists) only if 'simple' import (either with ZPOOL_IMPORT_PATH or the 'built in' defaults) didn't work. * The export function, do_export(), will export all pools imported, EXCEPT the root pool (if there is one). * ZED script from the Debian GNU/Linux packages added. * Refreshed ZED init script from behlendorf@5e7a660 to be portable so it may be used on both LSB and Redhat style systems. * If there is no pool(s) imported and zed successfully shut down, we will unload the zfs modules. * The function library file for the ZoL init script is installed as /etc/init.d/zfs-functions. * The four init scripts, the /etc/{defaults,sysconfig,conf.d}/zfs config file as well as the common function library is tagged as '%config(noreplace)' in the rpm rules file to make sure they are not replaced automatically if locally modifed. * Pitfals and workarounds: * If we're running from init, remove stale /etc/dfs/sharetab before importing pools in the zfs-import init script. * On Debian GNU/Linux, there's a 'sendsigs' script that will kill basically everything quite early in the shutdown phase and zed is/should be stopped much later than that. We don't want zed to be among the ones killed, so add the zed pid to list of pids for 'sendsigs' to ignore. * CentOS uses echo_success() and echo_failure() to print out status of command. These in turn uses "echo -n \0xx[etc]" to move cursor and choose colour etc. This doesn't work with the modified IFS variable we need to use in zfs-import for some reason, so work around that when we define zfs_log_{end,failure}_msg() for RedHat and derivative distributions. * All scripts passes ShellCheck (with one false positive in do_mount()). Signed-off-by: Turbo Fredriksson [email protected] Signed-off-by: Brian Behlendorf <[email protected]> Reviewed by: Richard Yao <[email protected]> Reviewed by: Chris Dunlap <[email protected]> Closes #2974 Closes #2107
* Use ExecStartPre to load zfs modulesBrian Behlendorf2015-05-262-2/+4
| | | | | | | | | | | | | Commit 87abfcb broke the systemd import service by treating the ExecStart line as if it were a shell command that could be executed. This isn't the way systemd works and the correct way to handle this case is with ExecStartPre. This patch updates the zfs import service files accordingly, Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Steven Noonan <[email protected]> Signed-off-by: Chris Siebenmann <[email protected]> Closes #3440
* Add libzfs_error_init() functionBrian Behlendorf2015-05-227-22/+46
| | | | | | | | | | | | | | All fprintf() error messages are moved out of the libzfs_init() library function where they never belonged in the first place. A libzfs_error_init() function is added to provide useful error messages for the most common causes of failure. Additionally, in libzfs_run_process() the 'rc' variable was renamed to 'error' for consistency with the rest of the code base. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlap <[email protected]> Signed-off-by: Richard Yao <[email protected]>
* Wait in libzfs_init() for the /dev/zfs deviceBrian Behlendorf2015-05-223-6/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While module loading itself is synchronous the creation of the /dev/zfs device is not. This is because /dev/zfs is typically created by a udev rule after the module is registered and presented to user space through sysfs. This small window between module loading and device creation can result in spurious failures of libzfs_init(). This patch closes that race by extending libzfs_init() so it can detect that the modules are loaded and only if required wait for the /dev/zfs device to be created. This allows scripts to reliably use the following shell construct without the need for additional error handling. $ /sbin/modprobe zfs && /sbin/zpool import -a To minimize the potential time waiting in libzfs_init() a strategy similar to adaptive mutexes is employed. The function will busy-wait for up to 10ms based on the expectation that the modules were just loaded and therefore the /dev/zfs will be created imminently. If it takes longer than this it will fall back to polling for up to 10 seconds. This behavior can be customized to some degree by setting the following new environment variables. This functionality is provided for backwards compatibility with existing scripts which depend on the module auto-load behavior. By default module auto-loading is now disabled. * ZFS_MODULE_LOADING="YES|yes|ON|on" - Attempt to load modules. * ZFS_MODULE_TIMEOUT="<seconds>" - Seconds to wait for /dev/zfs The zfs-import-* systemd service files have been updated to call '/sbin/modprobe zfs' so they no longer rely on the legacy auto-loading behavior. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlap <[email protected]> Signed-off-by: Richard Yao <[email protected]> Closes #2556
* Style check shell scriptsTurbo Fredriksson2015-05-201-1/+13
| | | | | | | | | | | If the command "shellcheck" exists, then find all shell scripts and run shellcheck on them. * Use 'gcc' format with shellcheck. * Exclude zfs-script-config.sh (which isn't really a script). Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3428
* Change 3-digit octal escapes to 4-digit onesHajo Möller2015-05-181-2/+2
| | | | | | | | | | Prefixing an octal value with a leading zero is the standard way to disambiguate it. This change only impacts the `zfs diff` output and is therefore very limited in scope. Signed-off-by: Hajo M<C3><B6>ller <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3417
* The mount helper mount.zfs MUST be in /sbin (not '$sbindir').Turbo Fredriksson2015-05-181-1/+1
| | | | | | | | | | | Commit 60e9f69 added the --with-mounthelperdir option for Gentoo and in the process accidentally modified the default installation location. For security reasons mount(8) expects it to only be installed under /sbin. Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3426
* Initialize dbu_tqent in dmu_buf_init_user()Tim Chase2015-05-181-0/+1
| | | | | | | | | | | | The dbu_evict_taskq added in 0c66c32d is only invoked via taskq_dispatch_ent(). In these cases, ZoL's implementation of taskqs requires the entries to be initialized first with taskq_init_ent() in order that, among other things, the embedded spinlock is initialized properly. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3419
* Illumos 5847 - libzfs_diff should check zfs_prop_get() returnAlexander Eremin2015-05-151-3/+7
| | | | | | | | | | | | | | 5847 libzfs_diff should check zfs_prop_get() return Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Albert Lee <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5847 https://github.com/illumos/illumos-gate/commit/8430278 Ported-by: Brian Behlendorf <[email protected]> Closes #3412
* Illumos 5243 - zdb -b could be much fasterMatthew Ahrens2015-05-152-21/+47
| | | | | | | | | | | | | | | | 5243 zdb -b could be much faster Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5243 https://github.com/illumos/illumos-gate/commit/f7950bf Ported-by: Don Brady <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3414
* Zdb should be able to open the root datasetTim Chase2015-05-152-1/+16
| | | | | | | | | If the pool/dataset command-line argument is specified with a trailing slash, for example, "tank/", it is interpreted as the root dataset. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3415
* Return -ESTALE to force lookup for missing NFS file handlesJan Sanislo2015-05-141-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There seems to be a annoying problem using NFSv4 to access ZFS file systems under certain circumstances. It's easily reproduced: nfs_client1: mount server:/export /mnt nfs_client1: cd /mnt nfs_client1: echo foo >junk nfs_client1: cat junk foo Now on a different NFSv4 client: nfs_client2: mount server:/export /mnt nfs_client2: cd /mnt nfs_client2: vi junk # Make some changes to /mnt/junk and save # This change the inode associated with /mnt/junk Now back to the original client: nfs_client1: cat junk cat: junk: No such file or directory Admittedly NFSv4 is not advertised as a cluster file system that maintains a completely coherent view of data across multiple nodes. But it does have some mechanisms built in that try to deal with situations like the above. Namely, it employs specialized file handle lookup routines that return ESTALE when a file handle contains a non-existant inode value. The ESTALE return triggers a return full file path lookup from the client to determine if the file has actually gone away or if the cached file handle is no longer valid. ZFS behavior can be brought into line with other file systems (e.g., ext4) by applying the following patch: Signed-off-by: Brian Behlendorf <[email protected]> Closes #3224
* Relax restriction on zfs_ioc_next_obj() iterationAntonio Russo2015-05-141-2/+1
| | | | | | | | | | | | | | | | | Per the documentation for dnode_next_offset in dnode.c, the "txg" parameter specifies a lower bound on which transaction the dnode can be found in. We are interested in all dnodes that are removed between the first and last transaction in the snapshot. It doesn't need to be created in that snapshot to correspond to a removed file. In fact, the behavior of zfs diff in the test case exactly matches this: the transaction that created the data that was deleted in snapshot "2" was produced before, in snapshot "1", definitely predating the first transaction in snapshot "2". Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Tim Chase <Tim Chase <[email protected]> Closes #2081
* Remove unused 'dsl_pool_t *dp' variableBrian Behlendorf2015-05-141-4/+2
| | | | | | | | | | | | | | | | | When ASSERTs are compiled out by using the --disable-debug configure option. Then the local variable 'dsl_pool_t *dp' will be unused and generate a compiler warning. Since this variable is only used once in the ASSERT replace it with 'ds->ds_dir->dd_pool'. This has the additional advantage of potentially saving a few bytes on the stack depending on how gcc decides to compile the function. This issue was not noticed immediately because the automated builders use --enable-debug to make the testing as rigorous as possible. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlap <[email protected]> Closes #3410
* Illumos 5765 - add support for estimating send stream size with ↵Max Grossman2015-05-135-40/+147
| | | | | | | | | | | | | | | | | | | | | | lzc_send_space when source is a bookmark 5765 add support for estimating send stream size with lzc_send_space when source is a bookmark Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: Steven Hartland <[email protected]> Reviewed by: Bayard Bell <[email protected]> Approved by: Albert Lee <[email protected]> References: https://www.illumos.org/issues/5765 https://github.com/illumos/illumos-gate/commit/643da460 Porting notes: * Unused variable 'recordsize' in dmu_send_estimate() dropped Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3397
* Illumos 5393 - spurious failures from dsl_dataset_hold_obj()Justin T. Gibbs2015-05-131-4/+5
| | | | | | | | | | | | | | | | 5393 spurious failures from dsl_dataset_hold_obj() Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Will Andrews <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Steven Hartland <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5393 https://github.com/illumos/illumos-gate/commit/e1f3c20 Ported-by: Brian Behlendorf <[email protected]> Closes #3403
* Illumos 5562 - ZFS sa_handle's violate kmem invariants, debug kernels panic ↵Justin T. Gibbs2015-05-111-14/+6
| | | | | | | | | | | | | | | | | | | on boot 5562 ZFS sa_handle's violate kmem invariants, debug kernels panic on boot Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Robert Mustacchi <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Rich Lowe <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5562 https://github.com/illumos/illumos-gate/commit/0fda3cc5 Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3388
* Illumos 5810 - zdb should print details of bpobjMatthew Ahrens2015-05-113-15/+92
| | | | | | | | | | | | | | | | | | 5810 zdb should print details of bpobj Reviewed by: Prakash Surya <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Will Andrews <[email protected]> Reviewed by: Simon Klinkert <[email protected]> Approved by: Gordon Ross <[email protected]> References: https://www.illumos.org/issues/5810 https://github.com/illumos/illumos-gate/commit/732885fc Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3387
* Illumos 5351, 5352 - scrub pausesMatthew Ahrens2015-05-111-2/+21
| | | | | | | | | | | | | | | | | | | | 5351 scrub goes for an extra second each txg 5352 scrub should pause when there is some dirty data Author: Matthew Ahrens <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5351 https://github.com/illumos/illumos-gate/commit/6f6a76a Ported-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3383
* Illumos 5350 - clean up code in dnode_sync()Matthew Ahrens2015-05-111-5/+4
| | | | | | | | | | | | | | | | | Author: Matthew Ahrens <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5350 https://github.com/illumos/illumos-gate/commit/e651831 Ported-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3382
* Illumos 5422 - preserve AVL invariants in dn_dbufsAlex Reece2015-05-111-6/+4
| | | | | | | | | | | | | | | | | Author: Alex Reece <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Josef 'Jeff' Sipek <[email protected]> Reviewed by: Albert Lee <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5422 https://github.com/illumos/illumos-gate/commit/a846f19 Ported-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3381
* Linux 2.6.36 compat, use REQ_FAILFAST_MASK and remove pre-2.6.36 supportTim Chase2015-05-113-29/+7
| | | | | | | | | | | | | | | | | Commit f4af6bb783b0b7f2a6075cb1c74c225db8a157b2 which added support for REQ_FAILFAST_MASK but the new autoconf test didn't use the same preprocessor macro name as the code did. The effect is that FAILFAST mode has not been enabled for ZoL in any post-2.6.35 kernel. Retire the HAVE_BIO_RW_FAILFAST interface used in pre-2.6.28 kernels. Raise an error condition if the FAILFAST interface can't be detected. Signed-off-by: Tim Chase <[email protected] Signed-off-by: Brian Behlendorf <[email protected]> Closes #3386
* Update ZED copyright boilerplateChris Dunlap2015-05-1116-322/+141
| | | | | | | | | | | | | | | | | | | | | | This commit updates the copyright boilerplate within the ZED subtree. The instructions for appending a contributor copyright line have been removed. Manually maintaining copyright notices in this manner is error-prone, imprecise at a file-scope granularity, and oftentimes inaccurate. These lines can become a pernicious source of merge conflicts. A commit log is better suited to maintaining this information. Consequently, a line has been added to the boilerplate to refer to the git commit log for authoritative copyright attribution. To account for the scenario where a file may become separated from the codebase and commit history (i.e., it is copied somewhere else), a line has been added to identify the file's origin. http://softwarefreedom.org/resources/2012/ManagingCopyrightInformation.html Signed-off-by: Chris Dunlap <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3384
* Safely handle security / ACL failuresDavid Lamparter2015-05-111-7/+25
| | | | | | | | | | | | The security and ACL operations should all be performed atomically. To accomplish this there would need to significant invasive changes made to the common code base. For the moment it's desirable for compatibility reasons to avoid this. Therefore the code has been updated to attempt to unwind the operation in case of failure rather than panic. Signed-off-by: Brian Behlendorf <[email protected]> Closes #2445
* ztest should randomly change recordsizeBrian Behlendorf2015-05-111-0/+3
| | | | | | | | | Improve the large block feature test coverage by extending ztest to frequently change the recordsize. This is specificially designed to catch corner cases which might otherwise go unnoticed. Signed-off-by: Brian Behlendorf <[email protected]> Issue #354
* Illumos 5027 - zfs large block supportMatthew Ahrens2015-05-1155-155/+613
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5027 zfs large block support Reviewed by: Alek Pinchuk <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Josef 'Jeff' Sipek <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <[email protected]> Closes #354
* Fix type mismatch on 32-bit systemsBrian Behlendorf2015-05-112-5/+6
| | | | | | | | | | | | | | The umem_alloc_aligned() function should not assume that a 'void *' type is 64-bit. It will not be on 32-bit platforms. Rather than complicating the ASSERT to handle this it is simply removed. Additionally, the '%lu' format specifier should not be assumed to imply a 64-bit value. Fix this by using the 'llu' format specifier which will always be atleast 64-bit and explicitly casing the variable to an u_longlong_t. This issue is handled the same way in many other parts of the code. Signed-off-by: Brian Behlendorf <[email protected]>
* Remove metaslab_min_alloc_size module optionBrian Behlendorf2015-05-111-6/+0
| | | | | | | | The metaslab_min_alloc_size option is no longer used in the code. This functionality was removed by commit f3a7f66 and the module options should have been dropped at that time. Signed-off-by: Brian Behlendorf <[email protected]>
* arc_evict, arc_evict_ghost: reduce stack usage using kmem_zallocChris Dunlop2015-05-081-12/+20
| | | | | | | | | | With debugging enabled and depending on your kernel config, the size of arc_buf_hdr_t can blow out the stack of arc_evict() and arc_evict_ghost() to greater than 1024 bytes. Let's avoid this. Signed-off-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3377
* Illumos 5349 - verify that block pointer is plausible before readingMatthew Ahrens2015-05-082-4/+91
| | | | | | | | | | | | | | | | | | | | | | | 5349 verify that block pointer is plausible before reading Reviewed by: Alex Reece <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: Dan McDonald <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Lowe <[email protected]> Reviewed by: Xin Li <[email protected]> Reviewed by: Josef 'Jeff' Sipek <[email protected]> Approved by: Gordon Ross <[email protected]> References: https://www.illumos.org/issues/5349 https://github.com/illumos/illumos-gate/commit/f63ab3d5 Porting notes: * Several variable declarations were moved due to C style needs Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3373
* Wait for all znodes to be released before tearing down the superblockChris Dunlop2015-05-061-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | By the time we're tearing down our superblock the VFS has started releasing all our inodes/znodes. Some of this work may have been handed off to our iput taskq so we need to wait for that work to complete. However the iput from the taskq can itself result in additional work being added to the taskq: dsl_pool_iput_taskq iput iput_final evict destroy_inode zpl_inode_destroy zfs_inode_destroy zfs_iput_async(ZTOI(zp->z_xattr_parent)) taskq_dispatch(dsl_pool_iput_taskq..., iput, ...) Let's wait until all our znodes have been released. Signed-off-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3281
* Illumos 5348 - zio_checksum_error() only fills in info if ECKSUMMatthew Ahrens2015-05-051-1/+2
| | | | | | | | | | | | | | | | | 5348 zio_checksum_error() only fills in info if ECKSUM Reviewed by: Alex Reece <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Steven Hartland <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5348 https://github.com/illumos/illumos-gate/commit/373dc1cf Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3372
* Illumos 5820 - verify failed in zio_done(): BP_EQUAL(bp, io_bp_orig)Matthew Ahrens2015-05-041-11/+24
| | | | | | | | | | | | | | | | 5820 verify failed in zio_done(): BP_EQUAL(bp, io_bp_orig) Reviewed by: Alex Reece <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Steven Hartland <[email protected]> Approved by: Garrett D'Amore <[email protected]> References: https://www.illumos.org/issues/5820 https://github.com/illumos/illumos-gate/commit/34e8acef00 Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3364
* Illumos 5808 - spa_check_logs is not necessary on readonly poolsMatthew Ahrens2015-05-041-1/+1
| | | | | | | | | | | | | | | | | 5808 spa_check_logs is not necessary on readonly pools Reviewed by: George Wilson <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Simon Klinkert <[email protected]> Reviewed by: Will Andrews <[email protected]> Approved by: Gordon Ross <[email protected]> References: https://www.illumos.org/issues/5808 https://github.com/illumos/illumos-gate/commit/23367a2f Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3369
* Illumos 5814 - bpobj_iterate_impl(): Close a refcount leak iterating on a ↵Will Andrews2015-05-041-1/+3
| | | | | | | | | | | | | | | | | | | sublist. 5814 bpobj_iterate_impl(): Close a refcount leak iterating on a sublist. Reviewed by: Prakash Surya <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Simon Klinkert <[email protected]> Approved by: Gordon Ross <[email protected]> References: https://www.illumos.org/issues/5814 https://github.com/illumos/illumos-gate/commit/b67dde11 Ported-by: DHE <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3368
* Add the '-a' option to 'zpool export'Turbo Fredriksson2015-05-042-34/+67
| | | | | | | | | | | | | Support exporting all imported pools in one go, using 'zpool export -a'. This is accomplished by moving the export parts from zpool_do_export() in to the new function zpool_export_one(). The for_each_pool() function is used to enumerate the list of pools to be exported. Passing an argc of 0 implies the function should be called on all pools. Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes: #3203
* Illumos 4951 - ZFS administrative commands (fix)Christopher Siden2015-05-042-6/+2
| | | | | | | | | | | 4951 ZFS administrative commands should use reserved space, not fail with ENOSPC Approved by: Christopher Siden <[email protected]> References: https://www.illumos.org/issues/4951 https://github.com/illumos/illumos-gate/commit/c39f2c8 Ported by: Brian Behlendorf <[email protected]>
* Illumos 4951 - ZFS administrative commands should use reserved spaceMatthew Ahrens2015-05-0418-67/+164
| | | | | | | | | | | | | | | 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]>
* Illumos 4373 - add block contents print to zstreamdumpMax Grossman2015-05-041-5/+120
| | | | | | | | | | | | | | 4373 add block contents print to zstreamdump Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Josef 'Jeff' Sipek <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/4373 https://github.com/illumos/illumos-gate/commit/994fb6b Ported by: Brian Behlendorf <[email protected]>
* Illumos 4901 - zfs filesystem/snapshot limit leaksJerry Jelinek2015-05-041-5/+11
| | | | | | | | | | | | 4901 zfs filesystem/snapshot limit leaks Reviewed by: Matthew Ahrens <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/4901 https://github.com/illumos/illumos-gate/commit/adf3407 Ported by: Brian Behlendorf <[email protected]>
* Illumos 3654,3656Matthew Ahrens2015-05-045-74/+39
| | | | | | | | | | | | | | | | | | | | | 3654 zdb should print number of ganged blocks 3656 remove unused function zap_cursor_move_to_key() 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/3654 https://www.illumos.org/issues/3656 https://github.com/illumos/illumos-gate/commit/d5ee8a1 Porting Notes: 3655 and 3657 were part of this commit but those hunks were dropped since they apply to mdb. Ported by: Brian Behlendorf <[email protected]>
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