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path: root/sys/cddl/compat/opensolaris/kern/opensolaris_vfs.c
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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 r296919: Fix small memory leak on attempt to access deleted snapshot.mav2016-03-181-0/+1
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* opensolaris compat: clear VI_MOUNT before returning if mount_snapshot failsavg2012-11-041-0/+3
| | | | | | | To do: investigate if it would be possible to use normal vfs_domount here. Reviewed by: kib MFC after: 19 days
* Imagine situation where a security problem is found in setuid binary.pjd2011-05-311-0/+5
| | | | | | | | | | User upgrades his system to fix the problem, but if he has any ZFS snapshots for the file system which contains problematic binary, any user can mount the snapshot and execute vulnerable binary. Prevent this from happening by always mounting snapshots with setuid turned off. MFC after: 2 weeks
* Finally... Import the latest open-source ZFS version - (SPA) 28.pjd2011-02-271-40/+32
| | | | | | | | | | | | | | | Few new things available from now on: - Data deduplication. - Triple parity RAIDZ (RAIDZ3). - zfs diff. - zpool split. - Snapshot holds. - zpool import -F. Allows to rewind corrupted pool to earlier transaction group. - Possibility to import pool in read-only mode. MFC after: 1 month
* - Mount ZFS snapshots with MNT_IGNORE flag, so they are not visible in regularpjd2009-09-141-34/+33
| | | | | | | | | | df(1) and mount(8) output. This is a bit smilar to OpenSolaris and follows ZFS route of not listing snapshots by default with 'zfs list' command. - Add UPDATING entry to note that ZFS snapshots are no longer visible in mount(8) and df(1) output by default. Reviewed by: kib MFC after: 3 days
* - Avoid holding mutex around M_WAITOK allocations.pjd2009-09-071-6/+26
| | | | | | - Add locking for mnt_opt field. MFC after: 1 week
* Remove the thread argument from the FSD (File-System Dependent) parts ofattilio2009-05-111-3/+3
| | | | | | | | | | | | | | | | | the VFS. Now all the VFS_* functions and relating parts don't want the context as long as it always refers to curthread. In some points, in particular when dealing with VOPs and functions living in the same namespace (eg. vflush) which still need to be converted, pass curthread explicitly in order to retain the old behaviour. Such loose ends will be fixed ASAP. While here fix a bug: now, UFS_EXTATTR can be compiled alone without the UFS_EXTATTR_AUTOSTART option. VFS KPI is heavilly changed by this commit so thirdy parts modules needs to be recompiled. Bump __FreeBSD_version in order to signal such situation.
* Extend the "vfsopt" mount options for more general use. Make structjamie2009-03-021-22/+3
| | | | | | | | | | | | | | | | vfsopt and the vfs_buildopts function public, and add some new fields to struct vfsopt (pos and seen), and new functions vfs_getopt_pos and vfs_opterror. Further extend the interface to allow reading options from the kernel in addition to sending them to the kernel, with vfs_setopt and related functions. While this allows the "name=value" option interface to be used for more than just FS mounts (planned use is for jails), it retains the current "vfsopt" name and <sys/mount.h> requirement. Approved by: bz (mentor)
* Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.pjd2008-11-171-57/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bring huge amount of changes, I'll enumerate only user-visible changes: - Delegated Administration Allows regular users to perform ZFS operations, like file system creation, snapshot creation, etc. - L2ARC Level 2 cache for ZFS - allows to use additional disks for cache. Huge performance improvements mostly for random read of mostly static content. - slog Allow to use additional disks for ZFS Intent Log to speed up operations like fsync(2). - vfs.zfs.super_owner Allows regular users to perform privileged operations on files stored on ZFS file systems owned by him. Very careful with this one. - chflags(2) Not all the flags are supported. This still needs work. - ZFSBoot Support to boot off of ZFS pool. Not finished, AFAIK. Submitted by: dfr - Snapshot properties - New failure modes Before if write requested failed, system paniced. Now one can select from one of three failure modes: - panic - panic on write error - wait - wait for disk to reappear - continue - serve read requests if possible, block write requests - Refquota, refreservation properties Just quota and reservation properties, but don't count space consumed by children file systems, clones and snapshots. - Sparse volumes ZVOLs that don't reserve space in the pool. - External attributes Compatible with extattr(2). - NFSv4-ACLs Not sure about the status, might not be complete yet. Submitted by: trasz - Creation-time properties - Regression tests for zpool(8) command. Obtained from: OpenSolaris
* Decontextualize vfs_busy(), vfs_unbusy() and vfs_mount_alloc() functions.attilio2008-08-311-3/+3
| | | | | | Manpages are updated accordingly. Tested by: Diego Sardina <siarodx at gmail dot com>
* We want to check new options given, not the current ones.pjd2008-07-211-1/+1
| | | | This fixes 'zpool import -o <mntopt> <name>' not working properly.
* VOP_LOCK1() (and so VOP_LOCK()) and VOP_UNLOCK() are only used inattilio2008-01-131-3/+3
| | | | | | | | | | | 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.attilio2008-01-101-2/+2
| | | | | | | | | | | | | | | | 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>
* - 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
* Reimplement traverse() helper function:pjd2007-06-041-9/+13
| | | | | | | | | | | | 1. Pass locking flags to VFS_ROOT(). 2. Check v_mountedhere while the vnode is locked. 3. Always return locked vnode on success. Change 1 fixes problem reported by Stephen M. Rumble - after zfs_vfsops.c,1.9 change, zfs_root() no longer locks the vnode unconditionally and traverse() didn't pass right lock type to VFS_ROOT(). The result was that kernel paniced when .zfs/ directory was accessed via NFS.
* Share-lock a vnode where possible.pjd2007-05-021-1/+1
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* MFp4:pjd2007-04-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | @118370 Correct typo. @118371 Integrate changes from vendor. @118491 Show backtrace on unexpected code paths. @118494 Integrate changes from vendor. @118504 Fix sendfile(2). I had two ways of fixing it: 1. Fixing sendfile(2) itself to use VOP_GETPAGES() instead of hacking around with vn_rdwr(UIO_NOCOPY), which was suggested by ups. 2. Modify ZFS behaviour to handle this special case. Although 1 is more correct, I've choosen 2, because hack from 1 have a side-effect of beeing faster - it reads ahead MAXBSIZE bytes instead of reading page by page. This is not easy to implement with VOP_GETPAGES(), at least not for me in this very moment. Reported by: Andrey V. Elsukov <bu7cher@yandex.ru> @118525 Reorganize the code to reduce diff. @118526 This code path is expected. It is simply when file is opened with O_FSYNC flag. Reported by: kris Reported by: Michal Suszko <dry@dry.pl>
* MFp4: Fix automatic snapshot mount when unprivileged user does lookuppjd2007-04-181-7/+8
| | | | | | | | | | | | on a snapshot directory: - Remove PRIV_VFS_MOUNT check - regular users can mount snapshots via lookups on snapshot directory. - Reset mount credential to kcred, so user won't be able to unmount the snapshot. - Reset owner uid. - Unlock vnode in case of a failure. Reported by: simokawa
* - Fix a leftover - vfs_mount_alloc() is now exported properly.pjd2007-04-171-4/+5
| | | | | | | | This fixes stange panics when listing .zfs/snapshot/ directory for me. Reported by: simokawa Reported by: Johan Hendriks <Johan@double-l.nl> - Hide cache_purge() under FREEBSD_NAMECACHE like in other files. - Protect mnt_flag with mount interlock.
* Please welcome ZFS - The last word in file systems.pjd2007-04-061-0/+270
ZFS file system was ported from OpenSolaris operating system. The code in under CDDL license. I'd like to thank all SUN developers that created this great piece of software. Supported by: Wheel LTD (http://www.wheel.pl/) Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/) Supported by: Sentex (http://www.sentex.net/)
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