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author | Pawel Jakub Dawidek <pjd@FreeBSD.org> | 2008-11-17 20:49:29 +0000 |
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committer | Pawel Jakub Dawidek <pjd@FreeBSD.org> | 2008-11-17 20:49:29 +0000 |
commit | 1ba4a712dde6e6c613fc411a96958b4ade67de4c (patch) | |
tree | 81b89fa4ac6467771d5aa291a97f4665981a6108 /sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h | |
parent | 8fc061164d74a4c9775f39da3c0b5d02112866c8 (diff) | |
download | src-1ba4a712dde6e6c613fc411a96958b4ade67de4c.tar.gz src-1ba4a712dde6e6c613fc411a96958b4ade67de4c.zip |
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
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
Notes
Notes:
svn path=/head/; revision=185029
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h b/sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h new file mode 100644 index 000000000000..3f9a665f0076 --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/sys/extdirent.h @@ -0,0 +1,77 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_EXTDIRENT_H +#define _SYS_EXTDIRENT_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#ifdef __cplusplus +extern "C" { +#endif + +#include <sys/types.h> + +#if defined(_KERNEL) + +/* + * Extended file-system independent directory entry. This style of + * dirent provides additional informational flag bits for each + * directory entry. This dirent will be returned instead of the + * standard dirent if a VOP_READDIR() requests dirent flags via + * V_RDDIR_ENTFLAGS, and if the file system supports the flags. + */ +typedef struct edirent { + ino64_t ed_ino; /* "inode number" of entry */ + off64_t ed_off; /* offset of disk directory entry */ + uint32_t ed_eflags; /* per-entry flags */ + unsigned short ed_reclen; /* length of this record */ + char ed_name[1]; /* name of file */ +} edirent_t; + +#define EDIRENT_RECLEN(namelen) \ + ((offsetof(edirent_t, ed_name[0]) + 1 + (namelen) + 7) & ~ 7) +#define EDIRENT_NAMELEN(reclen) \ + ((reclen) - (offsetof(edirent_t, ed_name[0]))) + +/* + * Extended entry flags + * Extended entries include a bitfield of extra information + * regarding that entry. + */ +#define ED_CASE_CONFLICT 0x10 /* Disconsidering case, entry is not unique */ + +/* + * Extended flags accessor function + */ +#define ED_CASE_CONFLICTS(x) ((x)->ed_eflags & ED_CASE_CONFLICT) + +#endif /* defined(_KERNEL) */ + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_EXTDIRENT_H */ |