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* Multi-modifier protection (MMP)Olaf Faaland2017-07-1356-250/+2646
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add multihost=on|off pool property to control MMP. When enabled a new thread writes uberblocks to the last slot in each label, at a set frequency, to indicate to other hosts the pool is actively imported. These uberblocks are the last synced uberblock with an updated timestamp. Property defaults to off. During tryimport, find the "best" uberblock (newest txg and timestamp) repeatedly, checking for change in the found uberblock. Include the results of the activity test in the config returned by tryimport. These results are reported to user in "zpool import". Allow the user to control the period between MMP writes, and the duration of the activity test on import, via a new module parameter zfs_multihost_interval. The period is specified in milliseconds. The activity test duration is calculated from this value, and from the mmp_delay in the "best" uberblock found initially. Add a kstat interface to export statistics about Multiple Modifier Protection (MMP) updates. Include the last synced txg number, the timestamp, the delay since the last MMP update, the VDEV GUID, the VDEV label that received the last MMP update, and the VDEV path. Abbreviated output below. $ cat /proc/spl/kstat/zfs/mypool/multihost 31 0 0x01 10 880 105092382393521 105144180101111 txg timestamp mmp_delay vdev_guid vdev_label vdev_path 20468 261337 250274925 68396651780 3 /dev/sda 20468 261339 252023374 6267402363293 1 /dev/sdc 20468 261340 252000858 6698080955233 1 /dev/sdx 20468 261341 251980635 783892869810 2 /dev/sdy 20468 261342 253385953 8923255792467 3 /dev/sdd 20468 261344 253336622 042125143176 0 /dev/sdab 20468 261345 253310522 1200778101278 2 /dev/sde 20468 261346 253286429 0950576198362 2 /dev/sdt 20468 261347 253261545 96209817917 3 /dev/sds 20468 261349 253238188 8555725937673 3 /dev/sdb Add a new tunable zfs_multihost_history to specify the number of MMP updates to store history for. By default it is set to zero meaning that no MMP statistics are stored. When using ztest to generate activity, for automated tests of the MMP function, some test functions interfere with the test. For example, the pool is exported to run zdb and then imported again. Add a new ztest function, "-M", to alter ztest behavior to prevent this. Add new tests to verify the new functionality. Tests provided by Giuseppe Di Natale. Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Ned Bass <[email protected]> Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #745 Closes #6279
* Make hostid consistent in user and kernel spaceOlaf Faaland2017-07-131-3/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If no spl_hostid was set, and no /etc/hostid file existed, the user and kernel would have different values for the hostid. The kernel's would be 0. User space's would depend on the libc implementation. On systems with glibc, it would be a generated value, probably the first 4 bytes of an IP address (see man 3 gethostid and comments above hostid_read in SPL for details). This then causes the hostid stored in the labels and in the pool config not to match the hostid userspace obtains from get_system_hostid(). Since the kernel has no way to know the libc's generated hostid value, it serves no purpose for ZFS to use the value. This patch changes user space's get_system_hostid() to conform to the kernel's method, first checking for the spl_hostid via sysfs, and then reading from /etc/hostid directly. It does not look up spl_hostid_path, because if that is set and the file it pointed to exists, spl_hostid will reflect its contents. It eliminates the call to libc's gethostid(). Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Ned Bass <[email protected]> Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Olaf Faaland <[email protected]> Closes #745 Closes #6279
* OpenZFS 6939 - add sysevents to zfs core for commandsDave Eddy2017-07-1211-52/+233
| | | | | | | | | | | | | | | | | | | | Authored by: Dave Eddy <[email protected]> Reviewed by: Patrick Mooney <[email protected]> Reviewed by: Joshua M. Clulow <[email protected]> Reviewed by: Josh Wilsdon <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Alan Somers <[email protected]> Reviewed by: Andrew Stormont <[email protected]> Approved by: Matthew Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/6939 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ce1577b Closes #6328
* Fixed VERIFY3_IMPL() bug from 682ce104Tom Caputi2017-07-121-1/+2
| | | | | | | | | | | When VERIFY3_IMPL() was adjusted in 682ce104, the values of the operands were omitted from the variadic arguments list. This patch simply corrects this. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #6343
* Add port of FreeBSD 'volmode' propertyLOLi2017-07-1214-83/+634
| | | | | | | | | | | | | | | | | | | | | | | | | The volmode property may be set to control the visibility of ZVOL block devices. This allow switching ZVOL between three modes: full - existing fully functional behaviour (default) dev - hide partitions on ZVOL block devices none - not exposing volumes outside ZFS Additionally the new zvol_volmode module parameter can be used to control the default behaviour. This functionality can be used, for instance, on "backup" pools to avoid cluttering /dev with unneeded zd* devices. Original-patch-by: mav <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: loli10K <[email protected]> Signed-off-by: loli10K <[email protected]> FreeBSD-commit: https://github.com/freebsd/freebsd/commit/dd28e6bb Closes #1796 Closes #3438 Closes #6233
* OpenZFS 5428 - provide fts(), reallocarray(), and strtonum()Yuri Pankov2017-07-087-14/+12
| | | | | | | | | | | | | | | | Authored by: Yuri Pankov <[email protected]> Reviewed by: Robert Mustacchi <[email protected]> Approved by: Joshua M. Clulow <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Brian Behlendorf <[email protected]> Porting Notes: * All hunks unrelated to ZFS were dropped. OpenZFS-issue: https://www.illumos.org/issues/5428 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4585130 Closes #6326
* Exit test-runner with non-zero if tests are KILLEDGiuseppe Di Natale2017-07-071-0/+4
| | | | | | | | | | fe46eeb introduced non-zero exit codes to test-runner. A non-zero exit code should be returned when test-runner decided to kill a test and mark it as KILLED. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Giuseppe Di Natale <[email protected]> Closes #6325
* Fix chattr_001_posLOLi2017-07-071-6/+6
| | | | | | | | | | | Commands should be eval()ed if they involve a shell redirection, otherwise we end up writing log_* functions messages to the output. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #6300 Closes #6323
* OpenZFS 8126 - ztest assertion failed in dbuf_dirty due to dn_nlevels changingMatthew Ahrens2017-07-071-5/+10
| | | | | | | | | | | | | | | | | | | The sync thread is concurrently modifying dn_phys->dn_nlevels while dbuf_dirty() is trying to assert something about it, without holding the necessary lock. We need to move this assertion further down in the function, after we have acquired the dn_struct_rwlock. Authored by: Matthew Ahrens <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed by: Serapheim Dimitropoulos <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8126 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/0ef125d Closes #6314
* OpenZFS 8067 - zdb should be able to dump literal embedded block pointerMatthew Ahrens2017-07-074-5/+95
| | | | | | | | | | | | | | Authored by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Alex Reece <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8067 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/8173085 Closes #6319
* Prevent dependencies on Debianized packagesAntonio Russo2017-07-071-1/+16
| | | | | | | | | | | | | | Call dpkg-shlibdeps with arguments excluding the Debianized packages lib{uutil1,nvpair1,zfs2,zpool2}linux from the auto-generated dependencies of generated .debs. A shim dh_shlibdeps that calls the real dh_shlibdeps with corresponding arguments is installed into a temporary directory, which is in turn pre-pended to the PATH for the alien call, working around alien's inability to directly alter the dependencies of its output debs. Resolves #6106. Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Antonio Russo <[email protected]> Closes #6309 Closes #6106
* Fix 'zpool clear' on readonly poolsLOLi2017-07-074-3/+76
| | | | | | | | | | Illumos 4080 inadvertently allows 'zpool clear' on readonly pools: fix this by reintroducing a check (POOL_CHECK_READONLY) in zfs_ioc_clear registration code. Signed-off-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #6306
* Implemented zpool scrub pause/resumeAlek P2017-07-0617-124/+362
| | | | | | | | | | | | | | | | | | Currently, there is no way to pause a scrub. Pausing may be useful when the pool is busy with other I/O to preserve bandwidth. This patch adds the ability to pause and resume scrubbing. This is achieved by maintaining a persistent on-disk scrub state. While the state is 'paused' we do not scrub any more blocks. We do however perform regular scan housekeeping such as freeing async destroyed and deadlist blocks while paused. Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Thomas Caputi <[email protected]> Reviewed-by: Serapheim Dimitropoulos <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Alek Pinchuk <[email protected]> Closes #6167
* Reschedule processes on -ERESTARTSYSArkadiusz Bubała2017-07-061-0/+2
| | | | | | | | | | | | On the single core machine the system may hang when the spa_namespare_lock acquisition fails in the zvol_first_open function. It returns -ERESTARTSYS error what causes the endless loop in __blkdev_get function. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Arkadiusz Bubała <[email protected]> Closes #6283 Closes #6312
* ZTS: replace su commands by run_user functionGeorge Melikov2017-07-056-38/+38
| | | | | | | | | | Needed for PATH variable to be passed into su. The posix* tests were fixed, but they need further investigation before they can be enabled. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: George Melikov <[email protected]> Closes #6303
* Musl libc fixesalaviss2017-07-051-0/+1
| | | | | | | | | Musl libc's <stdio.h> doesn't include <stdarg.h>, which cause `va_start` and `va_end` end up being undefined symbols. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Leorize <[email protected]> Closes #6310
* Clang fixesalaviss2017-07-052-10/+10
| | | | | | | | | Clang doesn't support `/` as comment in assembly, this patch replaces them with `#`. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Leorize <[email protected]> Closes #6311
* OpenZFS 8378 - crash due to bp in-memory modification of nopwrite blockMatthew Ahrens2017-07-044-38/+54
| | | | | | | | | | | | | | | | | | | | | | | | | Authored by: Matthew Ahrens <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> The problem is that zfs_get_data() supplies a stale zgd_bp to dmu_sync(), which we then nopwrite against. zfs_get_data() doesn't hold any DMU-related locks, so after it copies db_blkptr to zgd_bp, dbuf_write_ready() could change db_blkptr, and dbuf_write_done() could remove the dirty record. dmu_sync() then sees the stale BP and that the dbuf it not dirty, so it is eligible for nop-writing. The fix is for dmu_sync() to copy db_blkptr to zgd_bp after acquiring the db_mtx. We could still see a stale db_blkptr, but if it is stale then the dirty record will still exist and thus we won't attempt to nopwrite. OpenZFS-issue: https://www.illumos.org/issues/8378 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/3127742 Closes #6293
* OpenZFS 7600 - zfs rollback should pass target snapshot to kernelAndriy Gapon2017-07-046-14/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Authored by: Andriy Gapon <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> The existing kernel-side code only provides a method to rollback to a latest snapshot, whatever it happens to be at the time when the rollback is actually done. That could be unsafe or confusing in environments where concurrent DSL changes are possible as the resulting state could correspond to a newer or older snapshot than the originally requested one. This change allows to amend that method such that the rollback is performed only when the latest snapshot has a specific name. That is, if a new snapshot is concurrently created or the target snapshot is destroyed, then no rollback is done and EXDEV error is returned. New libzfs_core function lzc_rollback_to() is provided for the new functionality. libzfs is changed to use lzc_rollback_to() to implement zfs rollback command. Perhaps we should return different errors to distinguish the case where the desired snapshot exists but it's not the latest snapshot and the case where the desired snapshot does not exist. OpenZFS-issue: https://www.illumos.org/issues/7600 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/3d645eb Closes #6292
* OpenZFS 7910 - l2arc_write_buffers() may write beyond target_szAndriy Gapon2017-07-041-44/+44
| | | | | | | | | | | | | Authored by: Andriy Gapon <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7910 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/cb6af4b Closes #6291
* OpenZFS 8418 - zfs_prop_get_table() call in zfs_validate_name() is a no-opMarcel Telka2017-07-041-1/+0
| | | | | | | | | | | | | Authored by: Marcel Telka <[email protected]> Reviewed by: Vitaliy Gusev <[email protected]> Approved by: Matthew Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8418 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/e09ba01 Closes #6305
* ZTS: minor typo and old default valuesGeorge Melikov2017-07-032-3/+3
| | | | | | Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: George Melikov <[email protected]> Closes #6298
* On failure tests-runner should do non-zero exitAlek P2017-06-301-3/+7
| | | | | | | | | | | | Right now test runner will always exit(0). It's helpful to have zfs-tests.sh provide different exit values depending on if everything passed or not. We can then use common shell cmds to run tests until failure. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Alek Pinchuk <[email protected]> Closes #6285
* Print fail messages before callbacks in test suiteGiuseppe Di Natale2017-06-301-4/+6
| | | | | | | | | | | Reorder operations in _endlog so failure messages get printed prior to performing callbacks and cleanup. This helps clarify why a test failed and places the message closer to the point of incident in the resulting logs. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Giuseppe Di Natale <[email protected]> Closes #6281
* OpenZFS 8430 - dir_is_empty_readdir() doesn't properly handle error from ↵Sowrabha Gopal2017-06-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | fdopendir() Authored by: Sowrabha Gopal <[email protected]> Reviewed by: Serapheim Dimitropoulos <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Yuri Pankov <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> dir_is_empty_readdir() immediately returns if fdopendir() fails. We should close dirfd when that happens. OpenZFS-issue: https://www.illumos.org/issues/8430 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/e165e20 Closes #6289
* OpenZFS 8416 - abd.h is not C++ friendlyAndriy Gapon2017-06-301-1/+1
| | | | | | | | | | | | | | | Authored by: Andriy Gapon <[email protected]> Reviewed by: Igor Kozhukhov <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Alek Pinchuk <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8416 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/589c189 Closes #6288
* OpenZFS 8426 - mark immutable buffer arguments as such in abd.hAndriy Gapon2017-06-301-2/+2
| | | | | | | | | | | | | Authored by: Andriy Gapon <[email protected]> Reviewed by: Matt Ahrens <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8426 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/37359a6 Closes #6287
* OpenZFS 8377 - Panic in bookmark deletionMatthew Ahrens2017-06-301-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Authored by: Matthew Ahrens <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Robert Mustacchi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> The problem is that when dsl_bookmark_destroy_check() is executed from open context (the pre-check), it fills in dbda_success based on the existence of the bookmark. But the bookmark (or containing filesystem as in this case) can be destroyed before we get to syncing context. When we re-run dsl_bookmark_destroy_check() in syncing context, it will not add the deleted bookmark to dbda_success, intending for dsl_bookmark_destroy_sync() to not process it. But because the bookmark is still in dbda_success from the open-context call, we do try to destroy it. The fix is that dsl_bookmark_destroy_check() should not modify dbda_success when called from open context. OpenZFS-issue: https://www.illumos.org/issues/8377 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/b0b6fe3 Closes #6286
* Clean up large dnode codeMatthew Ahrens2017-06-293-2/+5
| | | | | | | | | | | | Resolves issues discovered when porting to OpenZFS. * Lint warnings. * Made dnode_move_impl() large dnode aware. This functionality is currently unused on Linux. Reviewed-by: Ned Bass <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matthew Ahrens <[email protected]> Closes #6262
* Set arc_meta_limit, arc_dnode_limit on changechrisrd2017-06-291-18/+24
| | | | | | | | | | | | | | | Make zfs_arc_meta_limit_percent and zfs_arc_dnode_limit_percent behave as you would expect from zfs-module-parameters.5. - recalculate arc_meta_limit if zfs_arc_meta_limit_percent changes - recalculate arc_dnode_limit if zfs_arc_dnode_limit_percent changes - correctly set arc_meta_limit and arc_dnode_limit if zfs_arc_max or zfs_arc_meta_min changes Reviewed-by: Tim Chase <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlop <[email protected]> Closes #6269
* Convert man zfs.8 to mdoc (OpenZFS sync)Brian Behlendorf2017-06-291-3800/+3923
| | | | | | | | | | * Fixed some typos * Additional description for some commands arguments * Text reworked to be in sync with OpenZFS * Added Linux as .Os type Reviewed-by: George Melikov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #6282
* GCC 7.1 fixesTony Hutter2017-06-289-27/+74
| | | | | | | | | | | GCC 7.1 with will warn when we're not checking the snprintf() return code in cases where the buffer could be truncated. This patch either checks the snprintf return code (where applicable), or simply disables the warnings (ztest.c). Reviewed-by: Chunwei Chen <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #6253
* Convert man zpool.8 to mdoc (OpenZFS sync)George Melikov2017-06-281-2653/+2242
| | | | | | | | | | | | | | | * Fixed some typos * Additional description for some commands arguments * `listsnapshots` remained * Text reworked to be in sync with OpenZFS * Added Linux as .Os type * Updated `zpool events` section. * Updated `zpool iostat|status -c` sections * Added zed(8) reference to SEE ALSO Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: George Melikov <[email protected]> Closes #6245
* Fix RHEL 7.4 bio_set_op_attrs build errorTony Hutter2017-06-271-1/+1
| | | | | | | | | | | | On RHEL 7.4, include/linux/bio.h now includes a macro for bio_set_op_attrs that conflicts with the ifndef in ZFS include/linux/blkdev_compat.h. This patch fixes the build. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #6234 Closes #6271
* Cap maximum aggregate IO sizeBrian Behlendorf2017-06-271-2/+5
| | | | | | | | | | | | | | Commit 8542ef8 allowed optional IOs to be aggregated beyond the specified aggregation limit. Since the aggregation limit was also used to enforce the maximum block size, setting `zfs_vdev_aggregation_limit=16777216` could result in an attempt to allocate an ABD larger than 16M. Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #6259 Closes #6270
* Fix zpool_add_005_posbunder20152017-06-271-1/+5
| | | | | | | | | | | | | | | | Under Linux the existence of a block device in /etc/fstab is not sufficient to prevent the use of the force flag. Without the force flag a warning will be printed that the device has a filesystem of a given type. Providing the force option will overwrite that filesystem as long as it is not actively mounted. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Tested-by: bunder2015 <[email protected]> Signed-off-by: bunder2015 <[email protected]> Closes #6267 Closes #6272
* Refine use of zv_state_lock.Boris Protopopov2017-06-271-68/+165
| | | | | | | | | | Use zv_state_lock to protect all members of zvol_state structure, add relevant ASSERT()s. Take zv_suspend_lock before zv_state_lock, do not hold zv_state_lock across suspend/resume. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Boris Protopopov <[email protected]> Closes #6226
* OpenZFS 5220 - L2ARC does not support devices that do not provide 512B accessGiuseppe Di Natale2017-06-261-11/+56
| | | | | | | | | | | | | Authored by: Andriy Gapon <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/5220 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/403a8da Closes #6260
* OpenZFS 8264 - want support for promoting datasets in libzfs_coreGiuseppe Di Natale2017-06-264-17/+69
| | | | | | | | | | | | | Authored by: Andrew Stormont <[email protected]> Reviewed by: Andriy Gapon <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Dan McDonald <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8264 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/a4b8c9a Closes #6254
* Fix arithmetic error message in zfs_clone_010_posbunder20152017-06-261-1/+1
| | | | | | | | | | zfs_clone_010_pos.ksh: line 234: ZFS_MAXPROPLEN: arithmetic syntax error Reviewed-by: Kash Pande <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: bunder2015 <[email protected]> Closes #6268
* Call cv_signal() with mutex heldBoris Protopopov2017-06-262-3/+2
| | | | | | | | In bqueue_dequeue(), call cv_signal() with bq_lock held. Re-enable rsend_009_pos to test the fix. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Boris Protopopov <[email protected]> Closes #5887
* OpenZFS 8331 - zfs_unshare returns wrong error code for smb unshare failureAndrew Stormont2017-06-221-4/+6
| | | | | | | | | | | | | | Authored by: Andrew Stormont <[email protected]> Reviewed by: Marcel Telka <[email protected]> Reviewed by: Toomas Soome <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Ported-by: Giuseppe Di Natale <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/8331 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4f4378c Closes #6255
* Dashes for zero latency values in zpool iostat -pTony Hutter2017-06-223-4/+19
| | | | | | | | | | | | This prints dashes instead of zeros for zero latency values in 'zpool iostat -p'. You'll get zero latencies reported when the disk is idle, but technically a zero latency is invalid, since you can't measure the latency of doing nothing. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Tony Hutter <[email protected]> Closes #6210
* Add kpreempt_disable/enable around CPU_SEQID usesMorgan Jones2017-06-192-4/+11
| | | | | | | | | | | In zfs/dmu_object and icp/core/kcf_sched, the CPU_SEQID macro should be surrounded by `kpreempt_disable` and `kpreempt_enable` calls to avoid a Linux kernel BUG warning. These code paths use the cpuid to minimize lock contention and is is safe to reschedule the process to a different processor at any time. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Morgan Jones <[email protected]> Closes #6239
* Inject zinject(8) a percentage amount of dev errsDon Brady2017-06-164-20/+76
| | | | | | | | | | | In the original form of device error injection, it was an all or nothing situation. To help simulate intermittent error conditions, you can now specify a real number percentage value. This is also very useful for our ZFS fault diagnosis testing and for injecting intermittent errors during load testing. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Don Brady <[email protected]> Closes #6227
* Provide links to info about ZFS Buildbot optionsGiuseppe Di Natale2017-06-152-0/+8
| | | | | | | | Add links for information about the ZFS buildbot options to the contributing guidelines and PR template. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Giuseppe Di Natale <[email protected]> Closes #6235
* Avoid 'queue not locked' warning at pool import.Boris Protopopov2017-06-151-1/+1
| | | | | | | | Use queue_flag_set_unlocked() in zvol_alloc(). Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Boris Protopopov <[email protected]> Issue #6226
* Fix zvol_state_t->zv_open_count raceLOLi2017-06-151-11/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5559ba0 added zv_state_lock to protect zvol_state_t internal data: this, however, doesn't guard zv->zv_open_count and zv->zv_disk->private_data in zvol_remove_minors_impl(). Fix this by taking zv->zv_state_lock before we check its zv_open_count. P1 (z_zvol) P2 (systemd-udevd) --- --- zvol_remove_minors_impl() : zv->zv_open_count==0 zvol_open() ->mutex_enter(zv_state_lock) : zv->zv_open_count++ ->mutex_exit(zv_state_lock) ->mutex_enter(zv->zv_state_lock) ->zvol_remove(zv) ->mutex_exit(zv->zv_state_lock) : zv->zv_disk->private_data = NULL ->zvol_free() -->ASSERT(zv->zv_open_count==0) * zvol_release() : zv = disk->private_data ->ASSERT(zv && zv->zv_open_count>0) * --- --- * ASSERT() fails Reviewed by: Boris Protopopov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected] Signed-off-by: loli10K <[email protected]> Closes #6213
* Fix manual description of zfs_arc_dnode_limitchrisrd2017-06-141-1/+1
| | | | | | | | | In arc_evict_state() we start pruning when arc_dnode_size > arc_dnode_limit, i.e. arc_dnode_limit is a ceiling rather than a floor. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chris Dunlop <[email protected]> Closes #6228
* Fix zvol_init error handlingRichard Yao2017-06-131-0/+1
| | | | | Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Richard Yao <[email protected]>
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