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* Merge a recent change from the OpenSolaris source tree.jb2008-06-012-13/+96
| | | | | | | | | | (Don't ask for a vendor import of this yet, we're in the early days of svn) Instead of using cyclic timers to call the state clean and deadman callbacks, use a callout on FreeBSD to avoid the deadlock on FreeBSD due to trying to send interprocessor interrupts with interrupts disabled. Reported by: ps, jhb, peter, thompsa
* Fix namespace collision after src/sys/sys/file.h:1.78.pjd2008-05-253-4/+5
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* Comment out the code that breaks with invariants. This is stuff that isjb2008-05-251-0/+2
| | | | | still WIP along with the lockstat provider, so there is no harm leaving it out for now.
* Remove redundant redeclaration of 'zone_drain'.bz2008-05-241-1/+0
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* Make the zfs module depend on the opensolaris module in preparation for itjb2008-05-241-0/+1
| | | | to shared stuff with the DTrace modules.
* Messing with the endian defines breaks the use of other FreeBSD headers.jb2008-05-231-44/+0
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* Delete a couple of OpenSolaris headers which get in the way of ourjb2008-05-232-318/+0
| | | | implementation.
* OpenSolaris kernel module compatibility sources.jb2008-05-232-0/+165
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* The cyclic timer device. This is a cut down version of the one injb2008-05-234-0/+1988
| | | | | OpenSolaris. We don't have the lock levels that they do, so this is just hooked into clock interrupts.
* Custom DTrace kernel module files plus FreeBSD-specific DTrace providers.jb2008-05-2330-0/+15340
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* A 'special' compatibility header to plug OpenSolaris code.jb2008-05-221-0/+35
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* Additional compatibility headers.jb2008-05-223-0/+403
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* Compatibility stuff for DTrace.jb2008-05-226-89/+135
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* FreeBSD changes to vendor source.jb2008-05-229-240/+1290
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* This commit was generated by cvs2svn to compensate for changes in r179193,jb2008-05-2218-0/+25785
|\ | | | | | | which included commits to RCS files with non-trunk default branches.
| * Vendor import of the src/sys OpenSolaris bits for DTrace.jb2008-05-2218-0/+25785
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* LO_ENROLLPEND is no more existing so just axe it (it was left out by theattilio2008-05-161-2/+1
| | | | original commit axing it).
* Add FreeBSD IDs to files that originate in FreeBSD.jb2008-04-2214-0/+28
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* Move the head of byte-level advisory lock list from thekib2008-04-163-41/+0
| | | | | | | | | | | | | | | | | | | | | | filesystem-specific vnode data to the struct vnode. Provide the default implementation for the vop_advlock and vop_advlockasync. Purge the locks on the vnode reclaim by using the lf_purgelocks(). The default implementation is augmented for the nfs and smbfs. In the nfs_advlock, push the Giant inside the nfs_dolock. Before the change, the vop_advlock and vop_advlockasync have taken the unlocked vnode and dereferenced the fs-private inode data, racing with with the vnode reclamation due to forced unmount. Now, the vop_getattr under the shared vnode lock is used to obtain the inode size, and later, in the lf_advlockasync, after locking the vnode interlock, the VI_DOOMED flag is checked to prevent an operation on the doomed vnode. The implementation of the lf_purgelocks() is submitted by dfr. Reported by: kris Tested by: kris, pho Discussed with: jeff, dfr MFC after: 2 weeks
* Add atomic operations for ZFS/sparc64.marius2008-04-111-0/+115
| | | | | | Approved by: core, pjd Obtained from: OpenSolaris (w/ adaptations) MFC after: 2 weeks
* - Fix the path encoded in the multiple inclusion protection.marius2008-04-111-36/+13
| | | | | | | | - GCC uses 32-byte function alignment for UltraSPARC CPUs. - Remove code duplication. Approved by: core, pjd MFC after: 2 weeks
* Add the new kernel-mode NFS Lock Manager. To use it instead of thedfr2008-03-261-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | user-mode lock manager, build a kernel with the NFSLOCKD option and add '-k' to 'rpc_lockd_flags' in rc.conf. Highlights include: * Thread-safe kernel RPC client - many threads can use the same RPC client handle safely with replies being de-multiplexed at the socket upcall (typically driven directly by the NIC interrupt) and handed off to whichever thread matches the reply. For UDP sockets, many RPC clients can share the same socket. This allows the use of a single privileged UDP port number to talk to an arbitrary number of remote hosts. * Single-threaded kernel RPC server. Adding support for multi-threaded server would be relatively straightforward and would follow approximately the Solaris KPI. A single thread should be sufficient for the NLM since it should rarely block in normal operation. * Kernel mode NLM server supporting cancel requests and granted callbacks. I've tested the NLM server reasonably extensively - it passes both my own tests and the NFS Connectathon locking tests running on Solaris, Mac OS X and Ubuntu Linux. * Userland NLM client supported. While the NLM server doesn't have support for the local NFS client's locking needs, it does have to field async replies and granted callbacks from remote NLMs that the local client has contacted. We relay these replies to the userland rpc.lockd over a local domain RPC socket. * Robust deadlock detection for the local lock manager. In particular it will detect deadlocks caused by a lock request that covers more than one blocking request. As required by the NLM protocol, all deadlock detection happens synchronously - a user is guaranteed that if a lock request isn't rejected immediately, the lock will eventually be granted. The old system allowed for a 'deferred deadlock' condition where a blocked lock request could wake up and find that some other deadlock-causing lock owner had beaten them to the lock. * Since both local and remote locks are managed by the same kernel locking code, local and remote processes can safely use file locks for mutual exclusion. Local processes have no fairness advantage compared to remote processes when contending to lock a region that has just been unlocked - the local lock manager enforces a strict first-come first-served model for both local and remote lockers. Sponsored by: Isilon Systems PR: 95247 107555 115524 116679 MFC after: 2 weeks
* In keeping with style(9)'s recommendations on macros, use a ';'rwatson2008-03-162-2/+2
| | | | | | | | | after each SYSINIT() macro invocation. This makes a number of lightweight C parsers much happier with the FreeBSD kernel source, including cflow's prcc and lxr. MFC after: 1 month Discussed with: imp, rink
* Fix mmap(2) on ZFS after some changes in VM subsystem.pjd2008-03-151-0/+4
| | | | | | | Submitted by: alc Reported by: kris (originally) and many others Tested with: fsx MFC after: 1 week
* Axe the 'thread' argument from VOP_ISLOCKED() and lockstatus() as it isattilio2008-02-251-3/+3
| | | | | | | | | always curthread. As KPI gets broken by this patch, manpages and __FreeBSD_version will be updated by further commits. Tested by: Andrea Barberio <insomniac at slackware dot it>
* Introduce some functions in the vnode locks namespace and in the ffsattilio2008-02-241-4/+4
| | | | | | | | | | | | | | | namespace in order to handle lockmgr fields in a controlled way instead than spreading all around bogus stubs: - VN_LOCK_AREC() allows lock recursion for a specified vnode - VN_LOCK_ASHARE() allows lock sharing for a specified vnode In FFS land: - BUF_AREC() allows lock recursion for a specified buffer lock - BUF_NOREC() disallows recursion for a specified buffer lock Side note: union_subr.c::unionfs_node_update() is the only other function directly handling lockmgr fields. As this is not simple to fix, it has been left behind as "sole" exception.
* - Reduce how much ZFS caches by default. This is another change to mitigatepjd2008-01-241-4/+5
| | | | | | | 'kmem_map too small panics'. - Print two warnings if there is not enough memory and not enough address space. - Improve comment.
* Change type of kmem_used() and kmem_size() functions to uint64_t, so itpjd2008-01-242-6/+6
| | | | | | | | | | | | | doesn't overflow in arc.c in this check: if (kmem_used() > (kmem_size() * 4) / 5) return (1); With this bug ZFS almost doesn't cache. Only 32bit machines are affected that have vm.kmem_size set to values >=1GB. Reported by: David Taylor <davidt@yadt.co.uk>
* VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used inattilio2008-01-137-25/+24
| | | | | | | | | | | conjuction with 'thread' argument passing which is always curthread. Remove the unuseful extra-argument and pass explicitly curthread to lower layer functions, when necessary. KPI results broken by this change, which should affect several ports, so version bumping and manpage update will be further committed. Tested by: kris, pho, Diego Sardina <siarodx at gmail dot com>
* vn_lock() is currently only used with the 'curthread' passed as argument.attilio2008-01-109-26/+26
| | | | | | | | | | | | | | | | Remove this argument and pass curthread directly to underlying VOP_LOCK1() VFS method. This modify makes the code cleaner and in particular remove an annoying dependence helping next lockmgr() cleanup. KPI results, obviously, changed. Manpage and FreeBSD_version will be updated through further commits. As a side note, would be valuable to say that next commits will address a similar cleanup about VFS methods, in particular vop_lock1 and vop_unlock. Tested by: Diego Sardina <siarodx at gmail dot com>, Andrea Di Pasquale <whyx dot it at gmail dot com>
* Remove some compatibility stuff that we now get from the Solaris header.jb2007-11-291-13/+0
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* * Check endianness the FreeBSD way.jb2007-11-2812-30/+43
| | | | | * Use LBOLT rather than lbolt to avoid a clash with a FreeBSD global variable.
* Fix a prototype definition.jb2007-11-281-1/+1
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* Check endianness the FreeBSD way.jb2007-11-281-1/+1
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* Include an extra header to get this to compile cleanly.jb2007-11-281-0/+1
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* Add more OpenSolaris compatibility headers.jb2007-11-2811-0/+624
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* Remove an extern that is defined elsewhere.jb2007-11-281-2/+0
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* Add compatibility cruft moved from under _SOLARIS_C_SOURCE in sys/types.hjb2007-11-281-0/+18
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* Remove a typedef which was just a hack to avoid including vmem.h.jb2007-11-281-2/+1
| | | | That typedef breaks other Solaris code.
* Add a missing volatile so that the code compiles cleanly.jb2007-11-281-1/+1
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* Rename the definition of lbolt to LBOLT to avoid a clash with a globaljb2007-11-281-2/+19
| | | | | variable in FreeBSD. Until now lbolt in sys/proc.h has been #ifdef'ed out based on _SOLARIS_C_SOURCE, but that is going away now.
* Warn if kmem_map size is set to less than 512MB. Previous warning was a bitpjd2007-11-071-5/+5
| | | | | | | pointless, because default is set to something around 300MB and also insufficient. MFC after: 3 days
* Remove unused header.pjd2007-11-051-569/+0
| | | | MFC after: 3 days
* If setting a state to anything but open state, close access to vdev.pjd2007-11-051-0/+11
| | | | | | | This fixes replacing drive in place, eg. zpool replace tank da1 da1. Before it complained that device is already open. MFC after: 1 week
* Remove "zfs:" prefix from lock and condvar names and also skip non-letterpjd2007-11-053-3/+24
| | | | | | | | characters (mostly "&"). Because top(1) shows only first six characters of wait channel, without this change we saw only one meaningful character. Requested by: kris & others MFC after: 1 week
* - Add sysctl for sizeof(znode_t), which will be used by fstat(1).lulf2007-11-021-0/+4
| | | | Approved by: pjd (mentor)
* Call zil_commit() (if ZIL is not disabled) after every non-read requestpjd2007-11-011-11/+11
| | | | | | | | (BIO_WRITE and BIO_FLUSH) as it is done is Solaris. The difference is that Solaris calls it only for sync requests, but we can't say in GEOM is the request is sync or async, so we do it for every request. MFC after: 1 week
* - Move crfree() outside MNT_ILOCK()/MNT_IUNLOCK() to eliminate a LOR:pjd2007-11-011-2/+6
| | | | | | | | | 1st 0xc4cea568 struct mount mtx (struct mount mtx) @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:209 2nd 0xc3ee9010 sleep mtxpool (sleep mtxpool) @ /usr/src/sys/kern/kern_resource.c:1266 - Move crdup() outside MNT_ILOCK()/MNT_IUNLOCK(), as it can sleep. Reported by: Olli Hauer <ohauer@gmx.de> MFC after: 3 days
* Rename the kthread_xxx (e.g. kthread_create()) callsjulian2007-10-203-6/+6
| | | | | | | | | | | to kproc_xxx as they actually make whole processes. Thos makes way for us to add REAL kthread_create() and friends that actually make theads. it turns out that most of these calls actually end up being moved back to the thread version when it's added. but we need to make this cosmetic change first. I'd LOVE to do this rename in 7.0 so that we can eventually MFC the new kthread_xxx() calls.
* ZFS_LOG adds a newline by itself.thompsa2007-10-141-1/+1
| | | | Pointed out by: pjd
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