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* Illumos #3464Matthew Ahrens2013-09-041-2/+4
| | | | | | | | | | | | | | | | | 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
* Illumos #2882, #2883, #2900Matthew Ahrens2013-09-041-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Fix man page for the sync propertySteven Burgess2013-08-071-2/+2
| | | | | | | | | | | | | | | | | The help output of for zfs set/get says that sync can be one of standard | always | disabled but the man pages claim it can be sync=default | always | disabled the accepted value is standard, this changes the manpage to give the correct values. Signed-off-by: Steven Burgess <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1634
* Fix the default checksum algorithm in the manpageMassimo Maggi2013-08-071-1/+1
| | | | | | | | | The manpage reports fletcher2, but in zio.h ZIO_CHECKSUM_ON_VALUE is defined to ZIO_CHECKSUM_FLETCHER_4. Signed-off-by: Massimo Maggi <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1628
* Add documentation for -T and interval to "zpool list"Christer Ekholm2013-07-221-3/+15
| | | | | | | zpool list has the same options for repeating as zpool iostat has, but that is not documented. This patch adds the documentation. Signed-off-by: Brian Behlendorf <[email protected]>
* Add FreeBSD 'zpool labelclear' commandDmitry Khasanov2013-07-091-0/+27
| | | | | | | | | | | | | The FreeBSD implementation of zfs adds the 'zpool labelclear' command. Since this functionality is helpful and straight forward to add it is being included in ZoL. References: freebsd/freebsd@119a041dc9230275239a8de68c534c0754181e7e Ported-by: Dmitry Khasanov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1126
* Formating changes for zpool manpageSteven Burgess2013-06-281-0/+8
| | | | | | | Some of these entries were hidden before. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1553
* Adds zpool split to man pageSteven Burgess2013-06-181-0/+50
| | | | | | | | | | Adds zpool split documentation to the zpool man page. I only documented the options that I could get to work. While it is documented on some sun blogs that devices can be specified for split, I was not able to get that to work during my testing. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1456
* Illumos #3306, #3321George Wilson2013-05-032-10/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3306 zdb should be able to issue reads in parallel 3321 'zpool reopen' command should be documented in the man page and help Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Christopher Siden <[email protected]> Approved by: Garrett D'Amore <[email protected]> References: illumos/illumos-gate@31d7e8fa33fae995f558673adb22641b5aa8b6e1 https://www.illumos.org/issues/3306 https://www.illumos.org/issues/3321 The vdev_file.c implementation in this patch diverges significantly from the upstream version. For consistenty with the vdev_disk.c code the upstream version leverages the Illumos bio interfaces. This makes sense for Illumos but not for ZoL for two reasons. 1) The vdev_disk.c code in ZoL has been rewritten to use the Linux block device interfaces which differ significantly from those in Illumos. Therefore, updating the vdev_file.c to use the Illumos interfaces doesn't get you consistency with vdev_disk.c. 2) Using the upstream patch as is would requiring implementing compatibility code for those Solaris block device interfaces in user and kernel space. That additional complexity could lead to confusion and doesn't buy us anything. For these reasons I've opted to simply move the existing vn_rdwr() as is in to the taskq function. This has the advantage of being low risk and easy to understand. Moving the vn_rdwr() function in to its own taskq thread also neatly avoids the possibility of a stack overflow. Finally, because of the additional work which is being handled by the free taskq the number of threads has been increased. The thread count under Illumos defaults to 100 but was decreased to 2 in commit 08d08e due to contention. We increase it to 8 until the contention can be address by porting Illumos #3581. Ported-by: Brian Behlendorf <[email protected]> Closes #1354
* Man page updates for SMBTurbo Fredriksson2013-04-021-2/+14
| | | | | | | | | | | | * Update manpage with more information about the ACL, guest access and that samba needs to be able to authenticate user(s). * Add information that 'net' can be used to modify the share after ZFS sharing and that it will be undone with a 'zfs unshare'. * Give an example on how to mount a SMB filesystem shared via ZFS. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1181 Issue #1170
* Correct typos in renaming exampleNick Garvey2013-04-021-3/+3
| | | | | Signed-off-by: Brian Behlendorf <[email protected]> Closes #1373
* Create fsck.zfs and zhack man pages.Darik Horn2013-03-195-3/+178
| | | | | | | | The automake templates have been updated to install them, and the existing packaging will automatically include them. Signed-off-by: Brian Behlendorf <[email protected]> Supplements #518
* Create mount.zfs, zinject, and zpios man pages.Darik Horn2013-03-136-2/+486
| | | | | | | And update the automake templates to install them. Signed-off-by: Brian Behlendorf <[email protected]> Closes #518
* Import ztest.1 man page.Michael Gebetsroither2013-03-131-0/+153
| | | | | | | | | | | | | Create a nroff man page for ZoL from: http://grml.org/online-docs/ztest.1.html Which itself was derived from: http://opensolaris.org/os/community/zfs/ztest/ Signed-off-by: Brian Behlendorf <[email protected]> Issue #518
* Fix zdb.8 macro warningBrian Behlendorf2013-03-061-2/+2
| | | | | | | | | | | | | | Detected by rpmlint the 'rpool/export/home' section was being interpretted by troff as an undefined macro. This resulted in the 'rpool/export/home' output being omitted from 'man zdb'. This was caused by starting the line with a ' character. By moving the 'in' down to the next line we're able to fix it. zfs.x86_64: W: manual-page-warning /usr/share/man/man8/zdb.8.gz 450: warning: macro `rpool/export/home'' not defined Signed-off-by: Brian Behlendorf <[email protected]>
* Add snapdev=[hidden|visible] dataset propertyEric Dillmann2013-03-051-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new snapdev dataset property may be set to control the visibility of zvol snapshot devices. By default this value is set to 'hidden' which will prevent zvol snapshots from appearing under /dev/zvol/ and /dev/<dataset>/. When set to 'visible' all zvol snapshots for the dataset will be visible. This functionality was largely added because when automatic snapshoting is enabled large numbers of read-only zvol snapshots will be created. When creating these devices the kernel will attempt to read their partition tables, and blkid will attempt to identify any filesystems on those partitions. This leads to a variety of issues: 1) The zvol partition tables will be read in the context of the `modprobe zfs` for automatically imported pools. This is undesirable and should be done asynchronously, but for now reducing the number of visible devices helps. 2) Udev expects to be able to complete its work for a new block devices fairly quickly. When many zvol devices are added at the same time this is no longer be true. It can lead to udev timeouts and missing /dev/zvol links. 3) Simply having lots of devices in /dev/ can be aukward from a management standpoint. Hidding the devices your unlikely to ever use helps with this. Any snapshot device which is needed can be made visible by changing the snapdev property. NOTE: This patch changes the default behavior for zvols which was effectively 'snapdev=visible'. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1235 Closes #945 Issue #956 Issue #756
* -x shouldn't warn about old on-disk format or unavailable featuresTim Connors2013-02-281-1/+1
| | | | | | | | | `zpool status -x` should only flag errors or where the pool is unavailable. If it imported fine but isn't using the latest features available in the code, that's not an error. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1319
* Update the zfs.8 "ZFS Volumes as Swap" sectionBrian Behlendorf2013-02-071-1/+4
| | | | | | | | As of 0.6.0-rc11 using ZFS volumes as Linux swap devices is supported. Swapping to files in ZFS filesystems is not. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1189
* Fix 1M references in zpool-features.5Brian Behlendorf2013-02-041-5/+5
| | | | | | | | The zpool-features(5) man page should reference the Linux zfs(8) and zpool(8) man pages. The 1M convention isn't used on Linux. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1184
* Add zpool-features(5) man pageBrian Behlendorf2013-02-041-1/+1
| | | | | | | | | | The zpool-features(5) man page was accidentally omitted from the build target when feature flags was merged. As a result it doesn't get installed as part of 'make install' so none of the packages include this man page. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1262
* Illumos #3035 LZ4 compression support in ZFS and GRUBEric Dillmann2013-01-292-1/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3035 LZ4 compression support in ZFS and GRUB Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Christopher Siden <[email protected]> References: illumos/illumos-gate@a6f561b4aee75d0d028e7b36b151c8ed8a86bc76 https://www.illumos.org/issues/3035 http://wiki.illumos.org/display/illumos/LZ4+Compression+In+ZFS This patch has been slightly modified from the upstream Illumos version to be compatible with Linux. Due to the very limited stack space in the kernel a lz4 workspace kmem cache is used. Since we are using gcc we are also able to take advantage of the gcc optimized __builtin_ctz functions. Support for GRUB has been dropped from this patch. That code is available but those changes will need to made to the upstream GRUB package. Lastly, several hunks of dead code were dropped for clarity. They include the functions real_LZ4_uncompress(), LZ4_compressBound() and the Visual Studio specific hunks wrapped in _MSC_VER. Ported-by: Eric Dillmann <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #1217
* Illumos #1884, #3028, #3048, #3049, #3060, #3061, #3093Yuri Pankov2013-01-111-34/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 1884 Empty "used" field for zfs *space commands 3028 zfs {group,user}space -n prints (null) instead of numeric GID/UID 3048 zfs {user,group}space [-s|-S] is broken 3049 zfs {user,group}space -t doesn't really filter the results 3060 zfs {user,group}space -H output isn't tab-delimited 3061 zfs {user,group}space -o doesn't use specified fields order 3093 zfs {user,group}space's -i is noop Reviewed by: Garry Mills <[email protected]> Reviewed by: Eric Schrock <[email protected]> Approved by: Richard Lowe <[email protected]> References: illumos/illumos-gate@89f5d17b06fc4132c983112b24836a779a0ed736 illumos changeset: 13803:b5e49d71ff0e https://www.illumos.org/issues/1884 https://www.illumos.org/issues/3028 https://www.illumos.org/issues/3048 https://www.illumos.org/issues/3049 https://www.illumos.org/issues/3060 https://www.illumos.org/issues/3061 https://www.illumos.org/issues/3093 Ported-by: Brian Behlendorf <[email protected]> Closes #1194
* 'zfs send' man page sync'ed with IllumosSteven Burgess2013-01-101-14/+34
| | | | | | | | | | | | | | | | | * Move -R option up one position in the list to match the Illumos documentation. * Move -D option up one position and refreshed it to match the Illumos documentation. * Move -p option up one position and refreshed it to match the Illumos documentation. * Add the -n, -P documentation found in zfs receive in to zfs send where to belongs. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1187
* 'zfs receive' man page sync'ed with IllumosSteven Burgess2013-01-101-61/+0
| | | | | | | | | | The only valid options are -vnFu, these other ones seem to be misplaced zfs send options. Remove: -D -r -p -n -P Signed-off-by: Brian Behlendorf <[email protected]> Closes #1186
* Illumos #3104: eliminate empty bpobjsMatthew Ahrens2013-01-081-0/+28
| | | | | | | | | | | | | | | | 3104 eliminate empty bpobjs Reviewed by: George Wilson <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Christopher Siden <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Approved by: Eric Schrock <[email protected]> References: illumos/illumos-gate@f17457368189aa911f774c38c1f21875a568bdca illumos changeset: 13782:8f78aae28a63 https://www.illumos.org/issues/3104 Ported-by: Brian Behlendorf <[email protected]>
* Illumos #2762: zpool command should have better support for feature flagsChristopher Siden2013-01-082-9/+10
| | | | | | | | | | | | | 2762 zpool command should have better support for feature flags Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Eric Schrock <[email protected]> References: illumos/illumos-gate@57221772c3fc05faba04bf48ddff45abf2bbf2bd https://www.illumos.org/issues/2762 Ported-by: Brian Behlendorf <[email protected]>
* Illumos #2619 and #2747Christopher Siden2013-01-082-18/+254
| | | | | | | | | | | | | | | | | | | | | | 2619 asynchronous destruction of ZFS file systems 2747 SPA versioning with zfs feature flags Reviewed by: Matt Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Lowe <[email protected]> Reviewed by: Dan Kruchinin <[email protected]> Approved by: Eric Schrock <[email protected]> References: illumos/illumos-gate@53089ab7c84db6fb76c16ca50076c147cda11757 illumos/illumos-gate@ad135b5d644628e791c3188a6ecbd9c257961ef8 illumos changeset: 13700:2889e2596bd6 https://www.illumos.org/issues/2619 https://www.illumos.org/issues/2747 NOTE: The grub specific changes were not ported. This change must be made to the Linux grub packages. Ported-by: Brian Behlendorf <[email protected]>
* Fix duplicate words in zpool.8Dominik Honnef2013-01-071-1/+1
| | | | | | | Remove the duplicate words 'cannot be' from the zpool.8 man page. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1177
* vdev_id support for device link aliasesNed Bass2012-12-032-5/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a vdev_id feature to map device names based on already defined udev device links. To increase the odds that vdev_id will run after the rules it depends on, increase the vdev.rules rule number from 60 to 69. With this change, vdev_id now provides functionality analogous to zpool_id and zpool_layout, paving the way to retire those tools. A defined alias takes precedence over a topology-derived name, but the two naming methods can otherwise coexist. For example, one might name drives in a JBOD with the sas_direct topology while naming an internal L2ARC device with an alias. For example, the following lines in vdev_id.conf will result in the creation of links /dev/disk/by-vdev/{d1,d2}, each pointing to the same target as the device link specified in the third field. # by-vdev # name fully qualified or base name of device link alias d1 /dev/disk/by-id/wwn-0x5000c5002de3b9ca alias d2 wwn-0x5000c5002def789e Also perform some minor vdev_id cleanup, such as removal of the unused -s command line option. Signed-off-by: Brian Behlendorf <[email protected]> Closes #981
* Implemented sharing datasets via SMB using libshareTurbo Fredriksson2012-12-031-5/+17
| | | | | | | | | Add the initial support for the 'smbshare' option using the existing libshare infrastructure. Because this implementation relies on usershares samba version 3.0.23 is required. Signed-off-by: Brian Behlendorf <[email protected]> Closes #493
* Add "-o ashift" to zpool add and zpool attachCyril Plisko2012-11-151-4/+27
| | | | | | | | | | | | | | | | When adding devices to an existing pool "ashift" property is auto-detected. However, if this property was overridden at the pool creation time (i.e. zpool create -o ashift=12 tank ...) this may not be what the user wants. This commit lets the user specify the value of "ashift" property to be used with newly added drives. For example, zpool add -o ashift=12 tank disk1 zpool attach -o ashift=12 tank disk1 disk2 Signed-off-by: Cyril Plisko <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #566
* zfs.8: add missing info about dedup, mlslabelKORN Andras2012-10-091-1/+43
| | | | | | | These sections were missing from the `zfs.8` man page. Add them. Signed-off-by: Brian Behlendorf <[email protected]> Closes #1026
* Illumos #2399: zfs manual page does not document use of "zfs diff".Richard Lowe2012-10-031-3/+97
| | | | | | | | | | | | | | | | | illumos/illumos-gate@3b8be6bf4fd2c744dfb8b5ce2a6c85ad0a2c8f75 Illumos changeset: 13773:00c2a08cf1bb 2399 zfs manual page does not document use of "zfs diff" Reviewed by: Joshua M. Clulow <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Reviewed by: Dan McDonald <[email protected]> Approved by: Robert Mustacchi <[email protected]> Ported-by: Etienne Dechamps <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #940
* Illumos #2703: add mechanism to report ZFS send progressBill Pijewski2012-09-191-1/+3
| | | | | | | | | | | | | Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Robert Mustacchi <[email protected]> Reviewed by: Richard Lowe <[email protected]> Approved by: Eric Schrock <[email protected]> References: https://www.illumos.org/issues/2703 Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Illumos #1948: zpool list should show more detailed pool infoChris Siden2012-09-191-7/+54
| | | | | | | | | | | | | | | | | | Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Reviewed by: Eric Schrock <[email protected]> Reviewed by: Richard Lowe <[email protected]> Reviewed by: Albert Lee <[email protected]> Reviewed by: Dan McDonald <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Approved by: Eric Schrock <[email protected]> References: https://www.illumos.org/issues/1948 Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #685
* Illumos #2088 zdb could use a reasonable manual pageRichard Lowe2012-09-181-40/+459
| | | | | | | | | | | | | | | | Reviewed by: Yuri Pankov <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Steve Gonczi <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Garrett D'Amore <[email protected]> References: https://www.illumos.org/issues/2088 Ported by: Cyril Plisko <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #682
* Add zstreamdump(8) command to examine ZFS send streams.Martin Matuska2012-09-022-1/+49
| | | | | | | | Obtained from: illumos-gate revision 11935:538c866aaac6 Source: ssh://[email protected]/illumos-gate Signed-off-by: Brian Behlendorf <[email protected]> Closes #905
* Remove autotools productsBrian Behlendorf2012-08-273-1832/+0
| | | | | | | | Remove all of the generated autotools products from the repository and update the .gitignore files accordingly. Signed-off-by: Brian Behlendorf <[email protected]> Closes #718
* Illumos #2635: 'zfs rename -f' to perform force unmountEric Schrock2012-08-231-5/+15
| | | | | | | | | | | | | | | Reviewed by: Matt Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Bill Pijewski <[email protected]> Reviewed by: Richard Elling <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/2635 Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #717
* Illumos #1936: add support for "-t <datatype>" argument to zfs getAndrew Stormont2012-08-231-3/+4
| | | | | | | | | | | | | | | Reviewed by: Kartik Mistry <[email protected]> Reviewed by: Dan McDonald <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/1936 Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #681
* Illumos #1888: zfs(8) should mention zfs recv -eBrian Behlendorf2012-08-101-5/+18
| | | | | | | | | | | | | Reviewed by: Garrett D'Amore <[email protected]> Reviewed by: Eric Schrock <[email protected]> Reviewed by: Gordon Ross <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/1888 Ported by: Brian Behlendorf <[email protected]> Closes #683
* Illumos #1693: persistent 'comment' field for a zpoolDan McDonald2012-08-081-2/+13
| | | | | | | | | | | | | Reviewed by: George Wilson <[email protected]> Reviewed by: Eric Schrock <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/1693 Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #678
* Set zvol discard_granularity to the volblocksize.Etienne Dechamps2012-08-073-0/+3
| | | | | | | | | | | | | | | | | | Currently, zvols have a discard granularity set to 0, which suggests to the upper layer that discard requests of arbirarily small size and alignment can be made efficiently. In practice however, ZFS does not handle unaligned discard requests efficiently: indeed, it is unable to free a part of a block. It will write zeros to the specified range instead, which is both useless and inefficient (see dnode_free_range). With this patch, zvol block devices expose volblocksize as their discard granularity, so the upper layer is aware that it's not supposed to send discard requests smaller than volblocksize. Signed-off-by: Brian Behlendorf <[email protected]> Closes #862
* Illumos #1644, #1645, #1646, #1647, #1708Matthew Ahrens2012-07-311-15/+219
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1644 add ZFS "clones" property 1645 add ZFS "written" and "written@..." properties 1646 "zfs send" should estimate size of stream 1647 "zfs destroy" should determine space reclaimed by destroying multiple snapshots 1708 adjust size of zpool history data References: https://www.illumos.org/issues/1644 https://www.illumos.org/issues/1645 https://www.illumos.org/issues/1646 https://www.illumos.org/issues/1647 https://www.illumos.org/issues/1708 This commit modifies the user to kernel space ioctl ABI. Extra care should be taken when updating to ensure both the kernel modules and utilities are updated. This change has reordered all of the new ioctl()s to the end of the list. This should help minimize this issue in the future. Reviewed by: Richard Lowe <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Albert Lee <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #826 Closes #664
* Linux 3.5 compat, end_writeback() changed to clear_inode()Richard Yao2012-07-233-0/+3
| | | | | | | | | | | | | | | | The end_writeback() function was changed by moving the call to inode_sync_wait() earlier in to evict(). This effecitvely changes the ordering of the sync but it does not impact the details of the zfs implementation. However, as part of this change end_writeback() was renamed to clear_inode() to reflect the new semantics. This change does impact us and clear_inode() now maps to end_writeback() for kernels prior to 3.5. Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #784
* Linux 3.5 compat, iops->truncate_range() removedRichard Yao2012-07-233-0/+3
| | | | | | | | | The vmtruncate_range() support has been removed from the kernel in favor of using the fallocate method in the file_operations table. Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #784
* Linux 3.5 compat, eops->encode_fh() takes inodesRichard Yao2012-07-233-0/+3
| | | | | | | | | | | | | | The export_operations member ->encode_fh() has been updated to take both the child and parent inodes. This interface used to take the child dentry and a bool describing if the parent is needed. NOTE: While updating this code I noticed that we do not currently cleanly handle the case where we're passed a connectable parent. This code should be audited to make sure we're doing the right thing. Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #784
* Move partition scanning from userspace to module.Etienne Dechamps2012-07-173-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, zpool online -e (dynamic vdev expansion) doesn't work on whole disks because we're invoking ioctl(BLKRRPART) from userspace while ZFS still has a partition open on the disk, which results in EBUSY. This patch moves the BLKRRPART invocation from the zpool utility to the module. Specifically, this is done just before opening the device in vdev_disk_open() which is called inside vdev_reopen(). This requires jumping through some hoops to get to the disk device from the partition device, and to make sure we can still open the partition after the BLKRRPART call. Note that this new code path is triggered on dynamic vdev expansion only; other actions, like creating a new pool, are unchanged and still call BLKRRPART from userspace. This change also depends on API changes which are available in 2.6.37 and latter kernels. The build system has been updated to detect this, but there is no compatibility mode for older kernels. This means that online expansion will NOT be available in older kernels. However, it will still be possible to expand the vdev offline. Signed-off-by: Brian Behlendorf <[email protected]> Closes #808
* Illumos #1748: desire support for reguid in zfsGarrett D'Amore2012-07-111-1/+18
| | | | | | | | | | | | | | | | | | | | | | Reviewed by: George Wilson <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Reviewed by: Alexander Eremin <[email protected]> Reviewed by: Alexander Stetsenko <[email protected]> Approved by: Richard Lowe <[email protected]> References: https://www.illumos.org/issues/1748 This commit modifies the user to kernel space ioctl ABI. Extra care should be taken when updating to ensure both the kernel modules and utilities are updated. If only the user space component is updated both the 'zpool events' command and the 'zpool reguid' command will not work until the kernel modules are updated. Ported by: Martin Matuska <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #665
* Linux 3.4 compat, d_make_root() replaces d_alloc_root()Richard Yao2012-06-113-0/+3
| | | | | | | | | | | | | | | | | | | | torvalds/linux@adc0e91ab142abe93f5b0d7980ada8a7676231fe introduced introduced d_make_root() as a replacement for d_alloc_root(). Further commits appear to have removed d_alloc_root() from the Linux source tree. This causes the following failure: error: implicit declaration of function 'd_alloc_root' [-Werror=implicit-function-declaration] To correct this we update the code to use the current d_make_root() interface for readability. Then we introduce an autotools check to determine if d_make_root() is available. If it isn't then we define some compatibility logic which used the older d_alloc_root() interface. Signed-off-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #776
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