diff options
Diffstat (limited to 'uts/common/fs/zfs/sys/zvol.h')
-rw-r--r-- | uts/common/fs/zfs/sys/zvol.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/uts/common/fs/zfs/sys/zvol.h b/uts/common/fs/zfs/sys/zvol.h new file mode 100644 index 000000000000..0059bf510260 --- /dev/null +++ b/uts/common/fs/zfs/sys/zvol.h @@ -0,0 +1,76 @@ +/* + * 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 (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. + */ + +#ifndef _SYS_ZVOL_H +#define _SYS_ZVOL_H + +#include <sys/zfs_context.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZVOL_OBJ 1ULL +#define ZVOL_ZAP_OBJ 2ULL + +#ifdef _KERNEL +extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize); +extern int zvol_check_volblocksize(uint64_t volblocksize); +extern int zvol_get_stats(objset_t *os, nvlist_t *nv); +extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); +extern int zvol_create_minor(const char *); +extern int zvol_remove_minor(const char *); +extern void zvol_remove_minors(const char *); +extern int zvol_set_volsize(const char *, major_t, uint64_t); + +extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr); +extern int zvol_dump(dev_t dev, caddr_t addr, daddr_t offset, int nblocks); +extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr); +extern int zvol_strategy(buf_t *bp); +extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr); +extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr); +extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr); +extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr); +extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, + int *rvalp); +extern int zvol_busy(void); +extern void zvol_init(void); +extern void zvol_fini(void); + +extern int zvol_get_volume_params(minor_t minor, uint64_t *blksize, + uint64_t *max_xfer_len, void **minor_hdl, void **objset_hdl, void **zil_hdl, + void **rl_hdl, void **bonus_hdl); +extern uint64_t zvol_get_volume_size(void *minor_hdl); +extern int zvol_get_volume_wce(void *minor_hdl); +extern void zvol_log_write_minor(void *minor_hdl, dmu_tx_t *tx, offset_t off, + ssize_t resid, boolean_t sync); + +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_ZVOL_H */ |