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* MFC r305679: Switch random_get_pseudo_bytes() shim to arc4rand().mav2016-09-131-1/+1
| | | | | | | | Our shim for Solaris random_get_bytes() uses read_random(), that looks reasonable, since it guaranties reliably seeded random data. On the other side Solaris random_get_pseudo_bytes() does not provide this guarantie, and its original Solaris implementation is equivalent to our arc4rand(), using software crypto without stressing slower hardware RNG.
* MFC r303763,303791,303869: zfs: honour and make use of vfs vnode locking ↵avg2016-08-231-2/+0
| | | | | | protocol PR: 209158
* MFC r299940: fix a vnode reference leak caused by illumos compat traverse()avg2016-07-131-2/+3
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* MFC r299902,299938: mount_snapshot: consolidate all error handlingavg2016-07-131-17/+21
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* MFC r299900: zfsctl: fix several problems with reference countsavg2016-07-131-1/+1
| | | | PR: 207464
* MFC r297513: remove emulation of VFS_HOLD and VFS_RELE from opensolaris compatavg2016-04-241-11/+0
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* MFC r296530: MFV r296529:mav2016-03-211-0/+3
| | | | | | | | | | | | | | 6672 arc_reclaim_thread() should use gethrtime() instead of ddi_get_lbolt() 6673 want a macro to convert seconds to nanoseconds and vice-versa Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> Reviewed by: Robert Mustacchi <rm@joyent.com> Approved by: Dan McDonald <danmcd@omniti.com> Author: Eli Rosenthal <eli.rosenthal@delphix.com> illumos/illumos-gate@a8f6344fa0921599e1f4511e41b5f9a25c38c0f9
* MFC r296510, r296563, r296567: MFV r296505:mav2016-03-212-0/+40
| | | | | | | | | | | | 6531 Provide mechanism to artificially limit disk performance Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com> Author: Prakash Surya <prakash.surya@delphix.com> illumos/illumos-gate@97e81309571898df9fdd94aab1216dfcf23e060b
* MFC r296919: Fix small memory leak on attempt to access deleted snapshot.mav2016-03-181-0/+1
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* MFC r279437,r284107:ngie2016-01-031-0/+263
| | | | | | | | | | | | | | | | | r279437 (by rstone): Allow Illumos code to co-exist with nv(9) r284107 (by avg): compat nvpair.h: make sure that the names are mangled only for kernel Currently there is no good reason to mangle the userland API. The change was introduced in eac1d566b46edef765754203bef22c75c1699966, r279437. Also see https://reviews.freebsd.org/D1881. I am still convinced that nv should not have introduced intentionally conflicting API.
* MFC r289195:ngie2015-11-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | Integrate the tests from lib/libarchive, usr.bin/cpio, and usr.bin/tar in to the FreeBSD test suite functional_test.sh was ported from bin/sh/tests/functional_test.sh, as a small wrapper around libarchive_test, bsdcpio_test, and bsdtar_test provided by upstream. A handful of testcases in lib/libarchive/tests have been disabled as they were failing when run with kyua test (see BROKEN_TESTS in lib/libarchive/tests/Makefile) As a sidenote: this removes the check/test targets from the Makefiles as they don't match the pattern used in the rest of the FreeBSD test suite. Sponsored by: EMC / Isilon Storage Division Conflicts: lib/libarchive/test usr.bin/cpio/test
* MFC r286578: Fix r286574 build in user-space.mav2015-10-031-1/+1
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* MFC r286574: 5445 Add more visibility via arcstats; specificallymav2015-10-031-0/+5
| | | | | | | | | | | | | arc_state_t stats and differentiate between "data" and "metadata" Reviewed by: Basil Crow <basil.crow@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Bayard Bell <bayard.bell@nexenta.com> Approved by: Robert Mustacchi <rm@joyent.com> Author: Prakash Surya <prakash.surya@delphix.com> illumos/illumos-gate@4076b1bf41cfd9f968a33ed54a7ae76d9e996fe8
* MFC r285715:ed2015-08-171-1/+3
| | | | | | | | | | | | | | | | | | Add an API for easily creating userspace threads in kernelspace. This change refactors the existing create_thread() function to be more generic. It replaces almost all of its arguments by a callback that can be used to extract the thread ID and copy it out to the right place, but also to perform additional initialization steps, such as setting the trapframe. This also makes the difference between thr_new() and thr_create() more clear in my opinion. This function is going to be used by the CloudABI compatibility layer. It looks like the OpenSolaris compatibility framework already provides a function called thread_create(). Rename this function to do_thread_create() and use a macro to deal with the namespacing conflict. A similar approach is already used for thread_exit().
* MFC r275576: remove opensolaris cyclic code, replace with high-precision ↵avg2015-05-113-393/+0
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* Merge r263233 from HEAD to stable/10:rwatson2015-03-191-1/+1
| | | | | | | | | Update kernel inclusions of capability.h to use capsicum.h instead; some further refinement is required as some device drivers intended to be portable over FreeBSD versions rely on __FreeBSD_version to decide whether to include capability.h. Sponsored by: Google, Inc.
* MFC r272701: make userland __assfail from opensolaris compat honor 'aok' ↵avg2014-11-171-4/+8
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* MFC: 273641jpaetzel2014-11-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change addresses 4 bugs in ZFS exposed by Richard Kojedzinszky's crash.sh script attached to FreeNAS bug 4109: https://bugs.freenas.org/issues/4109 Three are in the snapshot layer: a) AVG explains in his notes: https://wiki.freebsd.org/AvgVfsSolarisVsFreeBSD "VOP_INACTIVE must not do any destructive actions to a vnode and its filesystem node, nor invalidate them in any way." gfs_vop_inactive and zfsctl_snapshot_inactive did just that. In OpenSolaris VOP_INACTIVE is much closer to FreeBSD's VOP_RECLAIM. Rename & move them to gfs_vop_reclaim and zfsctl_snapshot_reclaim and merge in the requisite vnode_destroy from zfsctl_common_reclaim. b) gfs_lookup_dot and various zfsctl functions do not honor the FreeBSD VFS convention of only locking from the root downward. When looking up ".." the convention is to drop the current leaf vnode lock before acquiring the directory vnode and then subsequently re-acquiring the lock on the leaf vnode. This fixes that in all the places that our exercised by crash.sh. c) The snapshot may already be unmounted when the directory vnode is reclaimed. Check for this case and return. One in the common layer: d) Callers of traverse expect the reference to the vnode passed in to be maintained. Don't release it. This last one may be an unclear contract. There may in fact be some callers that do expect the reference to be dropped on success in addition to callers that expect it to be released. In this case a further audit of the callers is needed and a consensus on the correct behavior. PR: 184677 Submitted by: kmacy Reviewed by: delphij, will, avg Sponsored by: iXsystems
* MFC r271802:smh2014-10-102-1/+46
| | | | | | | | | | | | Add dtrace probe support for zfs SET_ERROR(..) MFC r271873: Fix static kernel build with options ZFS MFC r271819: Remove sys/types.h include as per style (9) Sponsored by: Multiplay
* MFC r270759:smh2014-10-102-8/+3
| | | | | | | | | | | | Refactor ZFS ARC reclaim logic to be more VM cooperative MFC r270861: Ensure that ZFS ARC free memory checks include cached pages MFC r272483: Refactor ZFS ARC reclaim checks and limits Sponsored by: Multiplay
* MFC r270260:delphij2014-09-031-0/+6
| | | | Provide compatibility shim for atomic_dec_64_nv.
* MFC r265152 - Reintroduce priority for the TRIM ZIOs instead of using the ↵smh2014-08-211-2/+0
| | | | | | | | | "NOW" priority MFC r265321 - Fix double fault panic when returning EOPNOTSUPP MFC r269407 - Don't return ZIO_PIPELINE_CONTINUE from vdev_op_io_start methods Sponsored by: Multiplay
* MFC r269403, r269405, r269410, r269414:ian2014-08-112-3/+3
| | | | | | Add 64-bit atomic ops for armv6, and also for armv4 only in kernel code. Use the new ops in the cddl code (and avoid defining functions with the same names locally).
* MFC r262329:markj2014-05-251-0/+1
| | | | | | | | | | Define the KM_NORMALPRI flag for kmem_alloc(), as it is used in some upstream DTrace code. MFC r262330: 1452 DTrace buffer autoscaling should be less violent illumos/illumos-gate@6fb4854bed54ce82bd8610896b64ddebcd4af706
* MFC r260234, r260328:mav2014-05-081-13/+3
| | | | | | | Remove extra conversion to nanoseconds from ddi_get_lbolt64(). As result this uses one multiplication and shifts instead of one division and two multiplications.
* MFC r258715: opensolaris compat: add taskq_wait emulationavg2014-02-171-0/+6
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* MFC r258625: sdt: add support for solaris/illumos style DTRACE_PROBE macrosavg2014-02-171-12/+3
| | | | | | | | | Note: in head KDTRACE_HOOKS is defined in opt_global.h and thus there is no need to explicitly include any header to check that option. In this branch we have to include opt_kdtrace.h and, so, this commit carries additional changes to accomodate for that difference. Sponsored by: HybridCluster
* MFC r258744-258746: zfs: add zfs_freebsd_putpagesavg2014-01-162-0/+19
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* MFC r258632,258704: MFV r255255: 4045 zfs write throttle & i/o scheduleravg2014-01-161-0/+40
| | | | | | performance work Sponsored by: HybridCluster [merge]
* MFC r258630: 734 taskq_dispatch_prealloc() desiredavg2014-01-162-63/+18
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* MFC r258628: opensolaris taskq: some cosmetic changesavg2014-01-161-4/+2
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* MFV r247844 (illumos-gate 13975:ef6409bc370f)delphij2013-09-102-0/+18
| | | | | | | | | | | Illumos ZFS issues: 3582 zfs_delay() should support a variable resolution 3584 DTrace sdt probes for ZFS txg states Provide a compatibility shim for Solaris's cv_timedwait_hires to help aid future porting. Approved by: re (ZFS blanket)
* Handle cases where capability rights are not provided.pjd2013-09-051-1/+1
| | | | Reported by: kib
* Change the cap_rights_t type from uint64_t to a structure that we can extendpjd2013-09-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in the future in a backward compatible (API and ABI) way. The cap_rights_t represents capability rights. We used to use one bit to represent one right, but we are running out of spare bits. Currently the new structure provides place for 114 rights (so 50 more than the previous cap_rights_t), but it is possible to grow the structure to hold at least 285 rights, although we can make it even larger if 285 rights won't be enough. The structure definition looks like this: struct cap_rights { uint64_t cr_rights[CAP_RIGHTS_VERSION + 2]; }; The initial CAP_RIGHTS_VERSION is 0. The top two bits in the first element of the cr_rights[] array contain total number of elements in the array - 2. This means if those two bits are equal to 0, we have 2 array elements. The top two bits in all remaining array elements should be 0. The next five bits in all array elements contain array index. Only one bit is used and bit position in this five-bits range defines array index. This means there can be at most five array elements in the future. To define new right the CAPRIGHT() macro must be used. The macro takes two arguments - an array index and a bit to set, eg. #define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL) We still support aliases that combine few rights, but the rights have to belong to the same array element, eg: #define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL) #define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL) #define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP) There is new API to manage the new cap_rights_t structure: cap_rights_t *cap_rights_init(cap_rights_t *rights, ...); void cap_rights_set(cap_rights_t *rights, ...); void cap_rights_clear(cap_rights_t *rights, ...); bool cap_rights_is_set(const cap_rights_t *rights, ...); bool cap_rights_is_valid(const cap_rights_t *rights); void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src); void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src); bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little); Capability rights to the cap_rights_init(), cap_rights_set(), cap_rights_clear() and cap_rights_is_set() functions are provided by separating them with commas, eg: cap_rights_t rights; cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT); There is no need to terminate the list of rights, as those functions are actually macros that take care of the termination, eg: #define cap_rights_set(rights, ...) \ __cap_rights_set((rights), __VA_ARGS__, 0ULL) void __cap_rights_set(cap_rights_t *rights, ...); Thanks to using one bit as an array index we can assert in those functions that there are no two rights belonging to different array elements provided together. For example this is illegal and will be detected, because CAP_LOOKUP belongs to element 0 and CAP_PDKILL to element 1: cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL); Providing several rights that belongs to the same array's element this way is correct, but is not advised. It should only be used for aliases definition. This commit also breaks compatibility with some existing Capsicum system calls, but I see no other way to do that. This should be fine as Capsicum is still experimental and this change is not going to 9.x. Sponsored by: The FreeBSD Foundation
* Replace kernel virtual address space allocation with vmem. This providesjeff2013-08-072-3/+4
| | | | | | | | | | | | | transparent layering and better fragmentation. - Normalize functions that allocate memory to use kmem_* - Those that allocate address space are named kva_* - Those that operate on maps are named kmap_* - Implement recursive allocation handling for kmem_arena in vmem. Reviewed by: alc Tested by: pho Sponsored by: EMC / Isilon Storage Division
* opensolaris code: translate INVARIANTS to DEBUG and ZFS_DEBUGavg2013-08-063-2/+39
| | | | | | | | | | | | | | | | Do this by forcing inclusion of sys/cddl/compat/opensolaris/sys/debug_compat.h via -include option into all source files from OpenSolaris. Note that this -include option must always be after -include opt_global.h. Additionally, remove forced definition of DEBUG for some modules and fix their build without DEBUG. Also, meaning of DEBUG was overloaded to enable WITNESS support for some OpenSolaris (primarily ZFS) locks. Now this overloading is removed and that use of DEBUG is replaced with a new option OPENSOLARIS_WITNESS. MFC after: 17 days
* style(9) fixessmh2013-06-291-2/+4
| | | | MFC after: 2 days
* Switch ZFS mutex_owner macro to use sx_xholder as its now exported via sx.hsmh2013-06-211-2/+1
| | | | MFC after: 1 week
* MFV r248217:mm2013-04-061-1/+3
| | | | | | | | | | Merge change from vendor to reduce diff only. ZFS dtrace probes are not supported on FreeBSD yet. Illumos ZFS issues: 3598 want to dtrace when errors are generated in zfs MFC after: 3 weeks
* TRIM cache devices based on time instead of TXGs.smh2013-03-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | Currently, the trim module uses the same algorithm for data and cache devices when deciding to issue TRIM requests, based on how far in the past the TXG is. Unfortunately, this is not ideal for cache devices, because the L2ARC doesn't use the concept of TXGs at all. In fact, when using a pool for reading only, the L2ARC is written but the TXG counter doesn't increase, and so no new TRIM requests are issued to the cache device. This patch fixes the issue by using time instead of the TXG number as the criteria for trimming on cache devices. The basic delay principle stays the same, but parameters are expressed in seconds instead of TXGs. The new parameters are named trim_l2arc_limit and trim_l2arc_batch, and both default to 30 second. Reviewed by: pjd (mentor) Approved by: pjd (mentor) Obtained from: https://github.com/dechamps/zfs/commit/17122c31ac7f82875e837019205c21651c05f8cd MFC after: 2 weeks
* MFC @248493mm2013-03-191-1/+1
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| * Partially revert r195702. Deferring stops is now implemented via a set ofjhb2013-03-181-1/+1
| | | | | | | | | | | | | | | | calls to toggle TDF_SBDRY rather than passing PBDRY to individual sleep calls. - Remove the stop_allowed parameters from cursig() and issignal(). issignal() checks TDF_SBDRY directly. - Remove the PBDRY and SLEEPQ_STOP_ON_BDRY flags.
* | MFC @248093mm2013-03-094-1/+147
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| * Switch the vm_object mutex to be a rwlock. This will enable in theattilio2013-03-093-0/+146
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | future further optimizations where the vm_object lock will be held in read mode most of the time the page cache resident pool of pages are accessed for reading purposes. The change is mostly mechanical but few notes are reported: * The KPI changes as follow: - VM_OBJECT_LOCK() -> VM_OBJECT_WLOCK() - VM_OBJECT_TRYLOCK() -> VM_OBJECT_TRYWLOCK() - VM_OBJECT_UNLOCK() -> VM_OBJECT_WUNLOCK() - VM_OBJECT_LOCK_ASSERT(MA_OWNED) -> VM_OBJECT_ASSERT_WLOCKED() (in order to avoid visibility of implementation details) - The read-mode operations are added: VM_OBJECT_RLOCK(), VM_OBJECT_TRYRLOCK(), VM_OBJECT_RUNLOCK(), VM_OBJECT_ASSERT_RLOCKED(), VM_OBJECT_ASSERT_LOCKED() * The vm/vm_pager.h namespace pollution avoidance (forcing requiring sys/mutex.h in consumers directly to cater its inlining functions using VM_OBJECT_LOCK()) imposes that all the vm/vm_pager.h consumers now must include also sys/rwlock.h. * zfs requires a quite convoluted fix to include FreeBSD rwlocks into the compat layer because the name clash between FreeBSD and solaris versions must be avoided. At this purpose zfs redefines the vm_object locking functions directly, isolating the FreeBSD components in specific compat stubs. The KPI results heavilly broken by this commit. Thirdy part ports must be updated accordingly (I can think off-hand of VirtualBox, for example). Sponsored by: EMC / Isilon storage division Reviewed by: jeff Reviewed by: pjd (ZFS specific review) Discussed with: alc Tested by: pho
| | * Add missing FBSDID() tag for new file.attilio2013-03-091-0/+1
| | | | | | | | | | | | Sponsored by: EMC / Isilon storage division
| | * MFCattilio2013-03-081-1/+1
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| | * \ MFCattilio2013-03-021-6/+2
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| | * \ \ MFCattilio2013-02-261-0/+3
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| | * | | | Change the use of hard functions for vm_pager_ok and switch toattilio2013-02-232-23/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | const variables. Sponsored by: EMC / Isilon storage division Reported by: pjd
| | * | | | Hide the details for the assertion for VM_OBJECT_LOCK operations.attilio2013-02-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename current VM_OBJECT_LOCK_ASSERT(foo, RA_WLOCKED) into VM_OBJECT_ASSERT_WLOCKED(foo) Sponsored by: EMC / Isilon storage division Requested by: alc
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