1ba4a712dd
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
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*
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* lsvfs - list loaded VFSes
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* Garrett A. Wollman, September 1994
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* This file is in the public domain.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define FMT "%-32.32s %5d %s\n"
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#define HDRFMT "%-32.32s %5.5s %s\n"
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#define DASHES "-------------------------------- ----- ---------------\n"
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static const char *fmt_flags(int);
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int
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main(int argc, char **argv)
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{
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int cnt, rv = 0, i;
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struct xvfsconf vfc, *xvfsp;
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size_t buflen;
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argc--, argv++;
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printf(HDRFMT, "Filesystem", "Refs", "Flags");
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fputs(DASHES, stdout);
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if(argc) {
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for(; argc; argc--, argv++) {
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if (getvfsbyname(*argv, &vfc) == 0) {
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printf(FMT, vfc.vfc_name, vfc.vfc_refcount, fmt_flags(vfc.vfc_flags));
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} else {
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warnx("VFS %s unknown or not loaded", *argv);
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rv++;
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}
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}
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} else {
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if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0)
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err(1, "sysctl(vfs.conflist)");
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xvfsp = malloc(buflen);
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if (xvfsp == NULL)
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errx(1, "malloc failed");
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if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0)
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err(1, "sysctl(vfs.conflist)");
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cnt = buflen / sizeof(struct xvfsconf);
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for (i = 0; i < cnt; i++) {
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printf(FMT, xvfsp[i].vfc_name, xvfsp[i].vfc_refcount,
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fmt_flags(xvfsp[i].vfc_flags));
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}
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free(xvfsp);
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}
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return rv;
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}
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static const char *
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fmt_flags(int flags)
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{
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/*
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* NB: if you add new flags, don't forget to add them here vvvvvv too.
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*/
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static char buf[sizeof
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"static, network, read-only, synthetic, loopback, unicode, jail"];
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size_t len;
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buf[0] = '\0';
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if(flags & VFCF_STATIC)
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strlcat(buf, "static, ", sizeof(buf));
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if(flags & VFCF_NETWORK)
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strlcat(buf, "network, ", sizeof(buf));
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if(flags & VFCF_READONLY)
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strlcat(buf, "read-only, ", sizeof(buf));
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if(flags & VFCF_SYNTHETIC)
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strlcat(buf, "synthetic, ", sizeof(buf));
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if(flags & VFCF_LOOPBACK)
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strlcat(buf, "loopback, ", sizeof(buf));
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if(flags & VFCF_UNICODE)
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strlcat(buf, "unicode, ", sizeof(buf));
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if(flags & VFCF_JAIL)
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strlcat(buf, "jail, ", sizeof(buf));
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if(flags & VFCF_DELEGADMIN)
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strlcat(buf, "delegated-administration, ", sizeof(buf));
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len = strlen(buf);
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if (len > 2 && buf[len - 2] == ',')
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buf[len - 2] = '\0';
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return buf;
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}
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