Esempio n. 1
0
STATIC int
xfs_ioc_bulkstat(
	xfs_mount_t		*mp,
	unsigned int		cmd,
	void			__user *arg)
{
	xfs_fsop_bulkreq_t	bulkreq;
	int			count;	/* # of records returned */
	xfs_ino_t		inlast;	/* last inode number */
	int			done;
	int			error;

	/* done = 1 if there are more stats to get and if bulkstat */
	/* should be called again (unused here, but used in dmapi) */

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;

	if (XFS_FORCED_SHUTDOWN(mp))
		return -XFS_ERROR(EIO);

	if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t)))
		return -XFS_ERROR(EFAULT);

	if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
		return -XFS_ERROR(EFAULT);

	if ((count = bulkreq.icount) <= 0)
		return -XFS_ERROR(EINVAL);

	if (bulkreq.ubuffer == NULL)
		return -XFS_ERROR(EINVAL);

	if (cmd == XFS_IOC_FSINUMBERS)
		error = xfs_inumbers(mp, &inlast, &count,
					bulkreq.ubuffer, xfs_inumbers_fmt);
	else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE)
		error = xfs_bulkstat_single(mp, &inlast,
						bulkreq.ubuffer, &done);
	else	/* XFS_IOC_FSBULKSTAT */
		error = xfs_bulkstat(mp, &inlast, &count,
			(bulkstat_one_pf)xfs_bulkstat_one, NULL,
			sizeof(xfs_bstat_t), bulkreq.ubuffer,
			BULKSTAT_FG_QUICK, &done);

	if (error)
		return -error;

	if (bulkreq.ocount != NULL) {
		if (copy_to_user(bulkreq.lastip, &inlast,
						sizeof(xfs_ino_t)))
			return -XFS_ERROR(EFAULT);

		if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
			return -XFS_ERROR(EFAULT);
	}

	return 0;
}
Esempio n. 2
0
/* PRIVATE, debugging */
int
xfs_qm_internalqcheck(
	xfs_mount_t	*mp)
{
	xfs_ino_t	lastino;
	int		done, count;
	int		i;
	xfs_dqtest_t	*d, *e;
	xfs_dqhash_t	*h1;
	int		error;

	lastino = 0;
	qmtest_hashmask = 32;
	count = 5;
	done = 0;
	qmtest_nfails = 0;

	if (! XFS_IS_QUOTA_ON(mp))
		return XFS_ERROR(ESRCH);

	xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
	XFS_bflush(mp->m_ddev_targp);
	xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
	XFS_bflush(mp->m_ddev_targp);

	mutex_lock(&qcheck_lock);
	/* There should be absolutely no quota activity while this
	   is going on. */
	qmtest_udqtab = kmem_zalloc(qmtest_hashmask *
				    sizeof(xfs_dqhash_t), KM_SLEEP);
	qmtest_gdqtab = kmem_zalloc(qmtest_hashmask *
				    sizeof(xfs_dqhash_t), KM_SLEEP);
	do {
		/*
		 * Iterate thru all the inodes in the file system,
		 * adjusting the corresponding dquot counters
		 */
		if ((error = xfs_bulkstat(mp, &lastino, &count,
				 xfs_qm_internalqcheck_adjust, NULL,
				 0, NULL, BULKSTAT_FG_IGET, &done))) {
			break;
		}
	} while (! done);
	if (error) {
		cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error);
	}
	cmn_err(CE_DEBUG, "Checking results against system dquots");
	for (i = 0; i < qmtest_hashmask; i++) {
		h1 = &qmtest_udqtab[i];
		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
			xfs_dqtest_cmp(d);
			e = (xfs_dqtest_t *) d->HL_NEXT;
			kmem_free(d, sizeof(xfs_dqtest_t));
			d = e;
		}
		h1 = &qmtest_gdqtab[i];
		for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
			xfs_dqtest_cmp(d);
			e = (xfs_dqtest_t *) d->HL_NEXT;
			kmem_free(d, sizeof(xfs_dqtest_t));
			d = e;
		}
	}

	if (qmtest_nfails) {
		cmn_err(CE_DEBUG, "******** quotacheck failed  ********");
		cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails);
	} else {
		cmn_err(CE_DEBUG, "******** quotacheck successful! ********");
	}
	kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
	kmem_free(qmtest_gdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
	mutex_unlock(&qcheck_lock);
	return (qmtest_nfails);
}
Esempio n. 3
0
/*
 * Walk thru all the filesystem inodes and construct a consistent view
 * of the disk quota world. If the quotacheck fails, disable quotas.
 */
int
xfs_qm_quotacheck(
	xfs_mount_t	*mp)
{
	int		done, count, error, error2;
	xfs_ino_t	lastino;
	size_t		structsz;
	xfs_inode_t	*uip, *gip;
	uint		flags;
	LIST_HEAD	(buffer_list);

	count = INT_MAX;
	structsz = 1;
	lastino = 0;
	flags = 0;

	ASSERT(mp->m_quotainfo->qi_uquotaip || mp->m_quotainfo->qi_gquotaip);
	ASSERT(XFS_IS_QUOTA_RUNNING(mp));

	xfs_notice(mp, "Quotacheck needed: Please wait.");

	/*
	 * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset
	 * their counters to zero. We need a clean slate.
	 * We don't log our changes till later.
	 */
	uip = mp->m_quotainfo->qi_uquotaip;
	if (uip) {
		error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA,
					 &buffer_list);
		if (error)
			goto error_return;
		flags |= XFS_UQUOTA_CHKD;
	}

	gip = mp->m_quotainfo->qi_gquotaip;
	if (gip) {
		error = xfs_qm_dqiterate(mp, gip, XFS_IS_GQUOTA_ON(mp) ?
					 XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA,
					 &buffer_list);
		if (error)
			goto error_return;
		flags |= XFS_OQUOTA_CHKD;
	}

	do {
		/*
		 * Iterate thru all the inodes in the file system,
		 * adjusting the corresponding dquot counters in core.
		 */
		error = xfs_bulkstat(mp, &lastino, &count,
				     xfs_qm_dqusage_adjust,
				     structsz, NULL, &done);
		if (error)
			break;

	} while (!done);

	/*
	 * We've made all the changes that we need to make incore.  Flush them
	 * down to disk buffers if everything was updated successfully.
	 */
	if (XFS_IS_UQUOTA_ON(mp)) {
		error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one,
					  &buffer_list);
	}
	if (XFS_IS_GQUOTA_ON(mp)) {
		error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one,
					   &buffer_list);
		if (!error)
			error = error2;
	}
	if (XFS_IS_PQUOTA_ON(mp)) {
		error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one,
					   &buffer_list);
		if (!error)
			error = error2;
	}

	error2 = xfs_buf_delwri_submit(&buffer_list);
	if (!error)
		error = error2;

	/*
	 * We can get this error if we couldn't do a dquot allocation inside
	 * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the
	 * dirty dquots that might be cached, we just want to get rid of them
	 * and turn quotaoff. The dquots won't be attached to any of the inodes
	 * at this point (because we intentionally didn't in dqget_noattach).
	 */
	if (error) {
		xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL);
		goto error_return;
	}

	/*
	 * If one type of quotas is off, then it will lose its
	 * quotachecked status, since we won't be doing accounting for
	 * that type anymore.
	 */
	mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD;
	mp->m_qflags |= flags;

 error_return:
	while (!list_empty(&buffer_list)) {
		struct xfs_buf *bp =
			list_first_entry(&buffer_list, struct xfs_buf, b_list);
		list_del_init(&bp->b_list);
		xfs_buf_relse(bp);
	}

	if (error) {
		xfs_warn(mp,
	"Quotacheck: Unsuccessful (Error %d): Disabling quotas.",
			error);
		/*
		 * We must turn off quotas.
		 */
		ASSERT(mp->m_quotainfo != NULL);
		xfs_qm_destroy_quotainfo(mp);
		if (xfs_mount_reset_sbqflags(mp)) {
			xfs_warn(mp,
				"Quotacheck: Failed to reset quota flags.");
		}
	} else
		xfs_notice(mp, "Quotacheck: Done.");
	return (error);
}
Esempio n. 4
0
/* copied from xfs_ioctl.c */
STATIC int
xfs_ioc_bulkstat_compat(
	xfs_mount_t		*mp,
	unsigned int		cmd,
	void			__user *arg)
{
	compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg;
	u32			addr;
	xfs_fsop_bulkreq_t	bulkreq;
	int			count;	/* # of records returned */
	xfs_ino_t		inlast;	/* last inode number */
	int			done;
	int			error;

	/* done = 1 if there are more stats to get and if bulkstat */
	/* should be called again (unused here, but used in dmapi) */

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;

	if (XFS_FORCED_SHUTDOWN(mp))
		return -XFS_ERROR(EIO);

	if (get_user(addr, &p32->lastip))
		return -EFAULT;
	bulkreq.lastip = compat_ptr(addr);
	if (get_user(bulkreq.icount, &p32->icount) ||
	    get_user(addr, &p32->ubuffer))
		return -EFAULT;
	bulkreq.ubuffer = compat_ptr(addr);
	if (get_user(addr, &p32->ocount))
		return -EFAULT;
	bulkreq.ocount = compat_ptr(addr);

	if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64)))
		return -XFS_ERROR(EFAULT);

	if ((count = bulkreq.icount) <= 0)
		return -XFS_ERROR(EINVAL);

	if (cmd == XFS_IOC_FSINUMBERS)
		error = xfs_inumbers(mp, &inlast, &count,
				bulkreq.ubuffer, xfs_inumbers_fmt_compat);
	else {
		/* declare a var to get a warning in case the type changes */
		bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat;
		error = xfs_bulkstat(mp, &inlast, &count,
			xfs_bulkstat_one, formatter,
			sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
			BULKSTAT_FG_QUICK, &done);
	}
	if (error)
		return -error;

	if (bulkreq.ocount != NULL) {
		if (copy_to_user(bulkreq.lastip, &inlast,
						sizeof(xfs_ino_t)))
			return -XFS_ERROR(EFAULT);

		if (copy_to_user(bulkreq.ocount, &count, sizeof(count)))
			return -XFS_ERROR(EFAULT);
	}

	return 0;
}
Esempio n. 5
0
/*
 * fsrfs -- reorganize a file system
 */
static int
fsrfs(char *mntdir, xfs_ino_t startino, int targetrange)
{

	int	fsfd, fd;
	int	count = 0;
	int	ret;
	size_t buflenout;
	xfs_bstat_t buf[GRABSZ];
	char	fname[64];
	char	*tname;
	jdm_fshandle_t	*fshandlep;
	xfs_ino_t	lastino = startino;

	fsrprintf("%s startino=%llu\n", mntdir, (unsigned long long)startino);

	fshandlep = jdm_getfshandle( mntdir );
	if ( ! fshandlep ) {
		fsrprintf("unable to get handle: %s: %s\n", 
		          mntdir, strerror( errno ));
		return -1;
	}

	if ((fsfd = open(mntdir, O_RDONLY)) < 0) {
		fsrprintf("unable to open: %s: %s\n", 
		          mntdir, strerror( errno ));
		return -1;
	}

	if (xfs_getgeom(fsfd, &fsgeom) < 0 ) {
		fsrprintf("Skipping %s: could not get XFS geom\n",
			  mntdir);
		return -1;
	}

	tmp_init(mntdir);

	sync();
	while (! xfs_bulkstat(fsfd, &lastino, GRABSZ, &buf[0], &buflenout)) {
		xfs_bstat_t *p;
		xfs_bstat_t *endp;

		if (buflenout == 0 )
			goto out0;
                

                    

		/* Each loop through, defrag targetrange percent of the files */
		count = (buflenout * targetrange) / 100;

		qsort((char *)buf, buflenout, sizeof(struct xfs_bstat), cmp);

		for ( p = buf, endp = (buf + buflenout); p < endp ; p++ ) {
			/* Do some obvious checks now */
			if (((p->bs_mode & S_IFMT) != S_IFREG) ||
			     (p->bs_extents < 2)) 
				continue;

			if((fd = jdm_open(fshandlep, p, O_RDWR)) < 0) {
				/* This probably means the file was
				 * removed while in progress of handling
				 * it.  Just quietly ignore this file.
				 */
				if (dflag)
					fsrprintf("could not open: ino %llu\n",
						  p->bs_ino);
				continue;
			}

			/* Don't know the pathname, so make up something */
			sprintf(fname, "ino=%llu", (unsigned long long)p->bs_ino);

			/* Get a tmp file name */
			tname = tmp_next(mntdir);

			ret = fsrfile_common(fname, tname, mntdir, fd, p);
			
			leftoffino = p->bs_ino;

			close(fd);

			if (ret == 0) {
				if (--count <= 0)
					break;
			}
		}
		if (endtime && endtime < time(0)) {
			tmp_close(mntdir);
			close(fsfd);
			fsrall_cleanup(1);
			exit(1);
		}
	}
out0:
	tmp_close(mntdir);
	close(fsfd);
	return 0;
}