C++ (Cpp) zfs_direntの例

コード例 #1

0

ファイルを表示

ファイル: zfs_dir.c プロジェクト: BjoKaSH/mac-zfs

/*
 * Link zp into dl.  Can only fail if zp has been unlinked.
 */
int
zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
{
	znode_t *dzp = dl->dl_dzp;
#ifdef __APPLE__
	uint64_t value;
	/* OSX - don't access the vnode here since it might not be attached yet. */
	int zp_is_dir = S_ISDIR(zp->z_phys->zp_mode);
#else
	vnode_t *vp = ZTOV(zp);
	uint64_t value;
	int zp_is_dir = (vp->v_type == VDIR);
#endif
	int error;

	dmu_buf_will_dirty(zp->z_dbuf, tx);
	mutex_enter(&zp->z_lock);

	if (!(flag & ZRENAMING)) {
		if (zp->z_unlinked) {	/* no new links to unlinked zp */
			ASSERT(!(flag & (ZNEW | ZEXISTS)));
			mutex_exit(&zp->z_lock);
			return (ENOENT);
		}
		zp->z_phys->zp_links++;
	}
	zp->z_phys->zp_parent = dzp->z_id;	/* dzp is now zp's parent */

	if (!(flag & ZNEW))
		zfs_time_stamper_locked(zp, STATE_CHANGED, tx);
	mutex_exit(&zp->z_lock);

	dmu_buf_will_dirty(dzp->z_dbuf, tx);
	mutex_enter(&dzp->z_lock);
	dzp->z_phys->zp_size++;			/* one dirent added */
	dzp->z_phys->zp_links += zp_is_dir;	/* ".." link from zp */
	zfs_time_stamper_locked(dzp, CONTENT_MODIFIED, tx);
	mutex_exit(&dzp->z_lock);

	value = zfs_dirent(zp);
	error = zap_add(zp->z_zfsvfs->z_os, dzp->z_id, dl->dl_name,
	    8, 1, &value, tx);
	ASSERT(error == 0);

#ifndef __APPLE__
	/* On Mac OS X, this is done up in VFS layer. */
	dnlc_update(ZTOV(dzp), dl->dl_name, vp);
#endif
	return (0);
}

コード例 #2

0

ファイルを表示

ファイル: zfs_dir.c プロジェクト: DangerDexter/FreeBSD-8.0-dyntick

/*
 * Link zp into dl.  Can only fail if zp has been unlinked.
 */
int
zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
{
	znode_t *dzp = dl->dl_dzp;
	vnode_t *vp = ZTOV(zp);
	uint64_t value;
	int zp_is_dir = (vp->v_type == VDIR);
	int error;

	dmu_buf_will_dirty(zp->z_dbuf, tx);
	mutex_enter(&zp->z_lock);

	if (!(flag & ZRENAMING)) {
		if (zp->z_unlinked) {	/* no new links to unlinked zp */
			ASSERT(!(flag & (ZNEW | ZEXISTS)));
			mutex_exit(&zp->z_lock);
			return (ENOENT);
		}
		zp->z_phys->zp_links++;
	}
	zp->z_phys->zp_parent = dzp->z_id;	/* dzp is now zp's parent */

	if (!(flag & ZNEW))
		zfs_time_stamper_locked(zp, STATE_CHANGED, tx);
	mutex_exit(&zp->z_lock);

	dmu_buf_will_dirty(dzp->z_dbuf, tx);
	mutex_enter(&dzp->z_lock);
	dzp->z_phys->zp_size++;			/* one dirent added */
	dzp->z_phys->zp_links += zp_is_dir;	/* ".." link from zp */
	zfs_time_stamper_locked(dzp, CONTENT_MODIFIED, tx);
	mutex_exit(&dzp->z_lock);

	value = zfs_dirent(zp);
	error = zap_add(zp->z_zfsvfs->z_os, dzp->z_id, dl->dl_name,
	    8, 1, &value, tx);
	ASSERT(error == 0);

	dnlc_update(ZTOV(dzp), dl->dl_name, vp);

	return (0);
}

コード例 #3

0

ファイルを表示

ファイル: zfs_dir.c プロジェクト: glycerine/zfs

/*
 * Link zp into dl.  Can only fail if zp has been unlinked.
 */
int
zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
{
	znode_t *dzp = dl->dl_dzp;
	zfsvfs_t *zfsvfs = zp->z_zfsvfs;
	vnode_t *vp = ZTOV(zp);
	uint64_t value;
	int zp_is_dir = (vp->v_type == VDIR);
	sa_bulk_attr_t bulk[5];
	uint64_t mtime[2], ctime[2];
	int count = 0;
	int error;

	mutex_enter(&zp->z_lock);

	if (!(flag & ZRENAMING)) {
		if (zp->z_unlinked) {	/* no new links to unlinked zp */
			ASSERT(!(flag & (ZNEW | ZEXISTS)));
			mutex_exit(&zp->z_lock);
			return (ENOENT);
		}
		zp->z_links++;
		SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
		    &zp->z_links, sizeof (zp->z_links));

	}
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL,
	    &dzp->z_id, sizeof (dzp->z_id));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	    &zp->z_pflags, sizeof (zp->z_pflags));

	if (!(flag & ZNEW)) {
		SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
		    ctime, sizeof (ctime));
		zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime,
		    ctime, B_TRUE);
	}
	error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx);
	ASSERT(error == 0);

	mutex_exit(&zp->z_lock);

	mutex_enter(&dzp->z_lock);
	dzp->z_size++;
	dzp->z_links += zp_is_dir;
	count = 0;
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
	    &dzp->z_size, sizeof (dzp->z_size));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
	    &dzp->z_links, sizeof (dzp->z_links));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL,
	    mtime, sizeof (mtime));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
	    ctime, sizeof (ctime));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	    &dzp->z_pflags, sizeof (dzp->z_pflags));
	zfs_tstamp_update_setup(dzp, CONTENT_MODIFIED, mtime, ctime, B_TRUE);
	error = sa_bulk_update(dzp->z_sa_hdl, bulk, count, tx);
	ASSERT(error == 0);
	mutex_exit(&dzp->z_lock);

	value = zfs_dirent(zp, zp->z_mode);
	error = zap_add(zp->z_zfsvfs->z_os, dzp->z_id, dl->dl_name,
	    8, 1, &value, tx);
	ASSERT(error == 0);

	dnlc_update(ZTOV(dzp), dl->dl_name, vp);

	return (0);
}

コード例 #4

0

ファイルを表示

ファイル: zfs_dir.c プロジェクト: ColinIanKing/zfs

/*
 * Link zp into dl.  Can only fail if zp has been unlinked.
 */
int
zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
{
	znode_t *dzp = dl->dl_dzp;
	zfsvfs_t *zfsvfs = ZTOZSB(zp);
	uint64_t value;
	int zp_is_dir = S_ISDIR(ZTOI(zp)->i_mode);
	sa_bulk_attr_t bulk[5];
	uint64_t mtime[2], ctime[2];
	uint64_t links;
	int count = 0;
	int error;

	mutex_enter(&zp->z_lock);

	if (!(flag & ZRENAMING)) {
		if (zp->z_unlinked) {	/* no new links to unlinked zp */
			ASSERT(!(flag & (ZNEW | ZEXISTS)));
			mutex_exit(&zp->z_lock);
			return (SET_ERROR(ENOENT));
		}
		if (!(flag & ZNEW)) {
			/*
			 * ZNEW nodes come from zfs_mknode() where the link
			 * count has already been initialised
			 */
			inc_nlink(ZTOI(zp));
			links = ZTOI(zp)->i_nlink;
			SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs),
			    NULL, &links, sizeof (links));
		}
	}
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL,
	    &dzp->z_id, sizeof (dzp->z_id));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	    &zp->z_pflags, sizeof (zp->z_pflags));

	if (!(flag & ZNEW)) {
		SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
		    ctime, sizeof (ctime));
		zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime,
		    ctime);
	}
	error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx);
	ASSERT(error == 0);

	mutex_exit(&zp->z_lock);

	mutex_enter(&dzp->z_lock);
	dzp->z_size++;
	if (zp_is_dir)
		inc_nlink(ZTOI(dzp));
	links = ZTOI(dzp)->i_nlink;
	count = 0;
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
	    &dzp->z_size, sizeof (dzp->z_size));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
	    &links, sizeof (links));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL,
	    mtime, sizeof (mtime));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
	    ctime, sizeof (ctime));
	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
	    &dzp->z_pflags, sizeof (dzp->z_pflags));
	zfs_tstamp_update_setup(dzp, CONTENT_MODIFIED, mtime, ctime);
	error = sa_bulk_update(dzp->z_sa_hdl, bulk, count, tx);
	ASSERT(error == 0);
	mutex_exit(&dzp->z_lock);

	value = zfs_dirent(zp, zp->z_mode);
	error = zap_add(ZTOZSB(zp)->z_os, dzp->z_id, dl->dl_name,
	    8, 1, &value, tx);
	ASSERT(error == 0);

	return (0);
}

コード例 #5

0

ファイルを表示

ファイル: zfs_dir.c プロジェクト: BjoKaSH/zfs-osx

/*
 * Link zp into dl.  Can only fail if zp has been unlinked.
 */
int
zfs_link_create(zfs_dirlock_t *dl, znode_t *zp, dmu_tx_t *tx, int flag)
{
    znode_t *dzp = dl->dl_dzp;
    zfsvfs_t *zfsvfs = zp->z_zfsvfs;
#ifdef __APPLE__
    uint64_t value;
    /* OSX - don't access the vnode here since it might not be attached yet. */
    //int zp_is_dir = S_ISDIR(zp->z_phys->zp_mode);
    int zp_is_dir = S_ISDIR(zp->z_mode);
#else
    vnode_t *vp = ZTOV(zp);
    uint64_t value;
    int zp_is_dir = (vp->v_type == VDIR);
#endif
    sa_bulk_attr_t bulk[5];
    uint64_t mtime[2], ctime[2];
    int count = 0;
    int error;

    mutex_enter(&zp->z_lock);

    if (!(flag & ZRENAMING)) {
        if (zp->z_unlinked) {	/* no new links to unlinked zp */
            ASSERT(!(flag & (ZNEW | ZEXISTS)));
            mutex_exit(&zp->z_lock);
            return (ENOENT);
        }
        zp->z_links++;
        SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
                         &zp->z_links, sizeof (zp->z_links));
    }

    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL,
                     &dzp->z_id, sizeof (dzp->z_id));
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
                     &zp->z_pflags, sizeof (zp->z_pflags));

    if (!(flag & ZNEW)) {
        SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
                         ctime, sizeof (ctime));
        zfs_tstamp_update_setup(zp, STATE_CHANGED, mtime,
                                ctime, B_TRUE);
    }
    error = sa_bulk_update(zp->z_sa_hdl, bulk, count, tx);
    // Needed?
#ifdef __APPLE__
    zp->z_parent = dzp->z_id;
#endif

    mutex_exit(&zp->z_lock);


    mutex_enter(&dzp->z_lock);
    dzp->z_size++;
    dzp->z_links += zp_is_dir;

    count = 0;
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_SIZE(zfsvfs), NULL,
                     &dzp->z_size, sizeof (dzp->z_size));
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_LINKS(zfsvfs), NULL,
                     &dzp->z_links, sizeof (dzp->z_links));
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL,
                     mtime, sizeof (mtime));
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL,
                     ctime, sizeof (ctime));
    SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_FLAGS(zfsvfs), NULL,
                     &dzp->z_pflags, sizeof (dzp->z_pflags));
    zfs_tstamp_update_setup(dzp, CONTENT_MODIFIED, mtime, ctime, B_TRUE);
    error = sa_bulk_update(dzp->z_sa_hdl, bulk, count, tx);
    mutex_exit(&dzp->z_lock);

    value = zfs_dirent(zp, zp->z_mode);
    error = zap_add(zp->z_zfsvfs->z_os, dzp->z_id, dl->dl_name,
                    8, 1, &value, tx);
    ASSERT(error == 0);

#ifndef __APPLE__
    /* On Mac OS X, this is done up in VFS layer. */
    dnlc_update(ZTOV(dzp), dl->dl_name, vp);
#endif
    return (0);
}