int
zfsslash2_init(void)
{
struct pscfs_args args = PSCFS_ARGS_INIT(0, NULL);
extern struct fuse_lowlevel_ops pscfs_fuse_ops;
extern struct fuse_session *fuse_session;
extern struct pollfd pflfs_fds[];
extern int newfs_fd[2], pflfs_nfds;
extern char *fuse_mount_options;
int rc;
if (pfl_systemf("umount %s", _PATH_KSTAT) == -1)
psclog_warn("umount %s", _PATH_KSTAT);
if (pipe(newfs_fd) == -1)
psc_fatal("pipe");
pflfs_fds[0].fd = newfs_fd[0];
pflfs_fds[0].events = POLLIN;
pflfs_nfds = 1;
fuse_session = fuse_lowlevel_new(&args.pfa_av, &pscfs_fuse_ops,
sizeof(pscfs_fuse_ops), NULL);
pscthr_init(SLMTHRT_ZFS_KSTAT, slmzfskstatmthr_main, 0,
"slmzfskstatmthr");
fuse_mount_options = "";
rc = libzfs_init_fusesocket();
if (rc == 0)
rc = libzfs_init();
atexit(slm_unmount_kstat);
return (rc);
}
int
pfl_odt_new(struct pfl_odt *t, const char *fn, int overwrite)
{
struct pfl_odt_hdr *h;
h = t->odt_hdr;
t->odt_fd = open(fn, O_CREAT | O_RDWR |
(overwrite ? O_TRUNC : O_EXCL), 0600);
if (t->odt_fd == -1) {
psclog_warn("open %s", fn);
return (-1);
}
if (pwrite(t->odt_fd, h, sizeof(*h), 0) != sizeof(*h)) {
psclog_warn("write %s", fn);
return (-1);
}
return (0);
}
void
slm_unmount_kstat(void)
{
char buf[BUFSIZ];
int rc;
rc = snprintf(buf, sizeof(buf), "umount %s", _PATH_KSTAT);
if (rc == -1)
psc_fatal("snprintf: umount %s", _PATH_KSTAT);
if (rc >= (int)sizeof(buf))
psc_fatalx("snprintf: umount %s: too long", _PATH_KSTAT);
if (system(buf) == -1)
psclog_warn("system(%s)", buf);
}
void
unmount(const char *mp)
{
char buf[BUFSIZ];
int rc;
/* XXX do not let this hang */
rc = snprintf(buf, sizeof(buf),
"umount '%s' || umount -f '%s' || umount -l '%s'",
mp, mp, mp);
if (rc == -1)
psc_fatal("snprintf: umount %s", mp);
if ((size_t)rc >= sizeof(buf))
psc_fatalx("snprintf: umount %s: too long", mp);
if (system(buf) == -1)
psclog_warn("system(%s)", buf);
}
/* when copying local-to-local, make sure to cut estimate by half */
int
pfl_getnfreecores(int want)
{
int nstr = want;
#ifdef HAVE_GETLOADAVG
{
double avg;
if (getloadavg(&avg, 1) == -1)
psclog_warn("getloadavg");
// XXX round up
nstr = MAX(1, nstr - avg);
}
#endif
return (nstr);
}
int
zfsslash2_init(void)
{
struct pscfs_args args = PSCFS_ARGS_INIT(0, NULL);
extern struct fuse_lowlevel_ops pscfs_fuse_ops;
extern struct fuse_session *fuse_session;
extern struct pollfd pscfs_fds[];
extern int newfs_fd[2], pscfs_nfds;
extern char *fuse_mount_options;
char buf[BUFSIZ];
int rc;
rc = snprintf(buf, sizeof(buf), "umount %s", _PATH_KSTAT);
if (rc == -1)
psc_fatal("snprintf: umount %s", _PATH_KSTAT);
if (rc >= (int)sizeof(buf))
psc_fatalx("snprintf: umount %s: too long", _PATH_KSTAT);
if (system(buf) == -1)
psclog_warn("system(%s)", buf);
if (pipe(newfs_fd) == -1)
psc_fatal("pipe");
pscfs_fds[0].fd = newfs_fd[0];
pscfs_fds[0].events = POLLIN;
pscfs_nfds = 1;
fuse_session = fuse_lowlevel_new(&args.pfa_av, &pscfs_fuse_ops,
sizeof(pscfs_fuse_ops), NULL);
pscthr_init(SLMTHRT_ZFS_KSTAT, slmzfskstatmthr_main, NULL, 0,
"slmzfskstatmthr");
fuse_mount_options = "";
rc = libzfs_init_fusesocket();
if (rc == 0)
rc = libzfs_init();
atexit(slm_unmount_kstat);
return (rc);
}
int
pfl_getnprocessors(void)
{
int np = 1;
#ifdef SYS_sched_getaffinity /* Linux */
cpu_set_t mask;
if (sched_getaffinity(0, sizeof(mask), &mask) == -1)
psclog_warn("sched_getaffinity");
else
np = CPU_COUNT(&mask);
#elif defined(HW_LOGICALCPU) /* MacOS X */
int mib[2];
size_t size;
size = sizeof(np);
mib[0] = CTL_HW;
mib[1] = HW_LOGICALCPU;
if (sysctl(mib, 2, &np, &size, NULL, 0) == 0)
np = size;
#elif defined(HW_NCPU) /* BSD */
int mib[2];
size_t size;
size = sizeof(np);
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
if (sysctl(mib, 2, &np, &size, NULL, 0) == 0)
np = size;
#endif
return (np);
}
void
slm_unmount_kstat(void)
{
if (pfl_systemf("umount %s", _PATH_KSTAT) == -1)
psclog_warn("umount %s", _PATH_KSTAT);
}