Merge commit 'refs/top-bases/linux-zfs-branch' into linux-zfs-branch

This commit is contained in:
Brian Behlendorf 2010-05-14 11:39:32 -07:00
commit 7c3f11da5c
1 changed files with 139 additions and 138 deletions

View File

@ -64,15 +64,18 @@
#include <sharefs/share.h>
#include <sys/dmu_objset.h>
#include <linux/miscdevice.h>
#include "zfs_namecheck.h"
#include "zfs_prop.h"
#include "zfs_deleg.h"
extern struct modlfs zfs_modlfs;
extern void zfs_init(void);
extern void zfs_fini(void);
ldi_ident_t zfs_li = NULL;
dev_info_t *zfs_dip;
typedef int zfs_ioc_func_t(zfs_cmd_t *);
typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
@ -400,7 +403,6 @@ zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
ZFS_DELEG_PERM_SEND, cr));
}
#ifdef HAVE_ZPL
static int
zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
{
@ -424,12 +426,10 @@ zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
return (dsl_deleg_access(zc->zc_name,
ZFS_DELEG_PERM_SHARE, cr));
}
#endif /* HAVE_ZPL */
int
zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
{
#ifdef HAVE_ZPL
if (!INGLOBALZONE(curproc))
return (EPERM);
@ -438,15 +438,11 @@ zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
} else {
return (zfs_secpolicy_deleg_share(zc, cr));
}
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
int
zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
{
#ifdef HAVE_ZPL
if (!INGLOBALZONE(curproc))
return (EPERM);
@ -455,9 +451,6 @@ zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
} else {
return (zfs_secpolicy_deleg_share(zc, cr));
}
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
static int
@ -652,7 +645,6 @@ zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
return (error);
}
#ifdef HAVE_ZPL
static int
zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
{
@ -664,7 +656,6 @@ zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
}
return (error);
}
#endif /* HAVE_ZPL */
/*
* Policy for pool operations - create/destroy pools, add vdevs, etc. Requires
@ -845,7 +836,6 @@ put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
return (error);
}
#ifdef HAVE_ZPL
static int
getzfsvfs(const char *dsname, zfsvfs_t **zvp)
{
@ -908,7 +898,6 @@ zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
zfsvfs_free(zfsvfs);
}
}
#endif /* HAVE_ZPL */
static int
zfs_ioc_pool_create(zfs_cmd_t *zc)
@ -1724,7 +1713,6 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
if (prop == ZPROP_INVAL) {
if (zfs_prop_userquota(propname)) {
#ifdef HAVE_ZPL
uint64_t *valary;
unsigned int vallen;
const char *domain;
@ -1753,10 +1741,6 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
continue;
else
goto out;
#else
error = ENOTSUP;
goto out;
#endif
} else if (zfs_prop_user(propname)) {
VERIFY(nvpair_value_string(elem, &strval) == 0);
error = dsl_prop_set(name, propname, 1,
@ -1797,7 +1781,8 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
case ZFS_PROP_VOLSIZE:
if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
(error = zvol_set_volsize(name, intval)) != 0)
(error = zvol_set_volsize(name,
ddi_driver_major(zfs_dip), intval)) != 0)
goto out;
break;
@ -1809,7 +1794,6 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
case ZFS_PROP_VERSION:
{
#ifdef HAVE_ZPL
zfsvfs_t *zfsvfs;
if ((error = nvpair_value_uint64(elem, &intval)) != 0)
@ -1828,10 +1812,6 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
if (error)
goto out;
break;
#else
error = ENOTSUP;
goto out;
#endif /* HAVE_ZPL */
}
default:
@ -2043,7 +2023,6 @@ zfs_ioc_pool_get_props(zfs_cmd_t *zc)
static int
zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
nvlist_t *nvp;
int error;
uint32_t uid;
@ -2086,9 +2065,6 @@ zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
crfree(usercred);
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -2171,7 +2147,7 @@ zfs_ioc_get_fsacl(zfs_cmd_t *zc)
static int
zfs_ioc_create_minor(zfs_cmd_t *zc)
{
return (zvol_create_minor(zc->zc_name));
return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
}
/*
@ -2186,7 +2162,6 @@ zfs_ioc_remove_minor(zfs_cmd_t *zc)
return (zvol_remove_minor(zc->zc_name));
}
#ifdef HAVE_ZPL
/*
* Search the vfs list for a specified resource. Returns a pointer to it
* or NULL if no suitable entry is found. The caller of this routine
@ -2211,7 +2186,6 @@ zfs_get_vfs(const char *resource)
vfs_list_unlock();
return (vfs_found);
}
#endif /* HAVE_ZPL */
/* ARGSUSED */
static void
@ -2561,7 +2535,6 @@ out:
int
zfs_unmount_snap(char *name, void *arg)
{
#ifdef HAVE_ZPL
vfs_t *vfsp = NULL;
if (arg) {
@ -2593,7 +2566,6 @@ zfs_unmount_snap(char *name, void *arg)
if ((err = dounmount(vfsp, flag, kcred)) != 0)
return (err);
}
#endif /* HAVE_ZPL */
return (0);
}
@ -2649,7 +2621,6 @@ zfs_ioc_destroy(zfs_cmd_t *zc)
static int
zfs_ioc_rollback(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
objset_t *os;
int error;
zfsvfs_t *zfsvfs = NULL;
@ -2683,9 +2654,6 @@ zfs_ioc_rollback(zfs_cmd_t *zc)
/* Note, the dmu_objset_rollback() releases the objset for us. */
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -2759,9 +2727,7 @@ static int
zfs_ioc_recv(zfs_cmd_t *zc)
{
file_t *fp;
#ifdef HAVE_ZPL
objset_t *os;
#endif /* HAVE_ZPL */
dmu_recv_cookie_t drc;
boolean_t force = (boolean_t)zc->zc_guid;
int error, fd;
@ -2794,7 +2760,6 @@ zfs_ioc_recv(zfs_cmd_t *zc)
return (EBADF);
}
#ifdef HAVE_ZPL
if (props && dmu_objset_open(tofs, DMU_OST_ANY,
DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
/*
@ -2805,7 +2770,6 @@ zfs_ioc_recv(zfs_cmd_t *zc)
dmu_objset_close(os);
}
#endif /* HAVE_ZPL */
if (zc->zc_string[0]) {
error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
@ -2837,7 +2801,6 @@ zfs_ioc_recv(zfs_cmd_t *zc)
error = dmu_recv_stream(&drc, fp->f_vnode, &off);
if (error == 0) {
#ifdef HAVE_ZPL
zfsvfs_t *zfsvfs = NULL;
if (getzfsvfs(tofs, &zfsvfs) == 0) {
@ -2864,9 +2827,6 @@ zfs_ioc_recv(zfs_cmd_t *zc)
} else {
error = dmu_recv_end(&drc);
}
#else
error = dmu_recv_end(&drc);
#endif /* HAVE_ZPL */
}
zc->zc_cookie = off - fp->f_offset;
@ -3097,7 +3057,6 @@ zfs_ioc_promote(zfs_cmd_t *zc)
static int
zfs_ioc_userspace_one(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
zfsvfs_t *zfsvfs;
int error;
@ -3113,9 +3072,6 @@ zfs_ioc_userspace_one(zfs_cmd_t *zc)
zfsvfs_rele(zfsvfs, FTAG);
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -3132,7 +3088,6 @@ zfs_ioc_userspace_one(zfs_cmd_t *zc)
static int
zfs_ioc_userspace_many(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
zfsvfs_t *zfsvfs;
int error;
@ -3155,9 +3110,6 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
zfsvfs_rele(zfsvfs, FTAG);
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -3170,7 +3122,6 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
static int
zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
objset_t *os;
int error;
zfsvfs_t *zfsvfs;
@ -3203,9 +3154,6 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
}
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -3215,7 +3163,6 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
* the first file system is shared.
* Neither sharefs, nfs or smbsrv are unloadable modules.
*/
#ifdef HAVE_ZPL
int (*znfsexport_fs)(void *arg);
int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
int (*zsmbexport_fs)(void *arg, boolean_t add_share);
@ -3247,12 +3194,10 @@ zfs_init_sharefs()
}
return (0);
}
#endif /* HAVE_ZPL */
static int
zfs_ioc_share(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
int error;
int opcode;
@ -3342,9 +3287,7 @@ zfs_ioc_share(zfs_cmd_t *zc)
zc->zc_share.z_sharemax);
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
ace_t full_access[] = {
@ -3354,7 +3297,6 @@ ace_t full_access[] = {
/*
* Remove all ACL files in shares dir
*/
#ifdef HAVE_ZPL
static int
zfs_smb_acl_purge(znode_t *dzp)
{
@ -3373,12 +3315,10 @@ zfs_smb_acl_purge(znode_t *dzp)
zap_cursor_fini(&zc);
return (error);
}
#endif /* HAVE ZPL */
static int
zfs_ioc_smb_acl(zfs_cmd_t *zc)
{
#ifdef HAVE_ZPL
vnode_t *vp;
znode_t *dzp;
vnode_t *resourcevp = NULL;
@ -3500,9 +3440,6 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc)
ZFS_EXIT(zfsvfs);
return (error);
#else
return (ENOTSUP);
#endif /* HAVE_ZPL */
}
/*
@ -3695,23 +3632,28 @@ pool_status_check(const char *name, zfs_ioc_namecheck_t type)
return (error);
}
static long
zfs_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
static int
zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
{
zfs_cmd_t *zc;
uint_t vec;
int error, rc, flag = 0;
int error, rc;
if (getminor(dev) != 0)
return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp));
vec = cmd - ZFS_IOC;
ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip));
if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
return (-EINVAL);
return (EINVAL);
zc = vmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
if (error == 0)
error = zfs_ioc_vec[vec].zvec_secpolicy(zc, NULL);
error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr);
/*
* Ensure that all pool/dataset names are valid before we pass down to
@ -3756,56 +3698,118 @@ zfs_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
return (-error);
}
#ifdef CONFIG_COMPAT
static long
zfs_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
static int
zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
return zfs_ioctl(filp, cmd, arg);
if (cmd != DDI_ATTACH)
return (DDI_FAILURE);
if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0,
DDI_PSEUDO, 0) == DDI_FAILURE)
return (DDI_FAILURE);
zfs_dip = dip;
ddi_report_dev(dip);
return (DDI_SUCCESS);
}
#else
#define zfs_compat_ioctl NULL
#endif
static const struct file_operations zfs_fops = {
.unlocked_ioctl = zfs_ioctl,
.compat_ioctl = zfs_compat_ioctl,
.owner = THIS_MODULE,
};
static struct miscdevice zfs_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = ZFS_DRIVER,
.fops = &zfs_fops,
};
static int
zfs_attach(void)
zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
int error;
if (spa_busy() || zfs_busy() || zvol_busy())
return (DDI_FAILURE);
error = misc_register(&zfs_misc);
if (error) {
printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
return (error);
if (cmd != DDI_DETACH)
return (DDI_FAILURE);
zfs_dip = NULL;
ddi_prop_remove_all(dip);
ddi_remove_minor_node(dip, NULL);
return (DDI_SUCCESS);
}
/*ARGSUSED*/
static int
zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
{
switch (infocmd) {
case DDI_INFO_DEVT2DEVINFO:
*result = zfs_dip;
return (DDI_SUCCESS);
case DDI_INFO_DEVT2INSTANCE:
*result = (void *)0;
return (DDI_SUCCESS);
}
return (0);
return (DDI_FAILURE);
}
static void
zfs_detach(void)
{
int error;
/*
* OK, so this is a little weird.
*
* /dev/zfs is the control node, i.e. minor 0.
* /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
*
* /dev/zfs has basically nothing to do except serve up ioctls,
* so most of the standard driver entry points are in zvol.c.
*/
static struct cb_ops zfs_cb_ops = {
zvol_open, /* open */
zvol_close, /* close */
zvol_strategy, /* strategy */
nodev, /* print */
zvol_dump, /* dump */
zvol_read, /* read */
zvol_write, /* write */
zfsdev_ioctl, /* ioctl */
nodev, /* devmap */
nodev, /* mmap */
nodev, /* segmap */
nochpoll, /* poll */
ddi_prop_op, /* prop_op */
NULL, /* streamtab */
D_NEW | D_MP | D_64BIT, /* Driver compatibility flag */
CB_REV, /* version */
nodev, /* async read */
nodev, /* async write */
};
static struct dev_ops zfs_dev_ops = {
DEVO_REV, /* version */
0, /* refcnt */
zfs_info, /* info */
nulldev, /* identify */
nulldev, /* probe */
zfs_attach, /* attach */
zfs_detach, /* detach */
nodev, /* reset */
&zfs_cb_ops, /* driver operations */
NULL, /* no bus operations */
NULL, /* power */
ddi_quiesce_not_needed, /* quiesce */
};
static struct modldrv zfs_modldrv = {
&mod_driverops,
"ZFS storage pool",
&zfs_dev_ops
};
static struct modlinkage modlinkage = {
MODREV_1,
(void *)&zfs_modlfs,
(void *)&zfs_modldrv,
NULL
};
error = misc_deregister(&zfs_misc);
if (error)
printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error);
}
#ifdef HAVE_ZPL
uint_t zfs_fsyncer_key;
extern uint_t rrw_tsd_key;
#endif
int
_init(void)
@ -3814,28 +3818,21 @@ _init(void)
spa_init(FREAD | FWRITE);
zfs_init();
zvol_init();
if ((error = zvol_init()) != 0) {
if ((error = mod_install(&modlinkage)) != 0) {
zvol_fini();
zfs_fini();
spa_fini();
return (error);
}
if ((error = zfs_attach()) != 0) {
(void)zvol_fini();
zfs_fini();
spa_fini();
return (error);
}
#ifdef HAVE_ZPL
tsd_create(&zfs_fsyncer_key, NULL);
tsd_create(&rrw_tsd_key, NULL);
error = ldi_ident_from_mod(&modlinkage, &zfs_li);
ASSERT(error == 0);
mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
#endif /* HAVE_ZPL */
printk(KERN_INFO "ZFS: Loaded ZFS Filesystem v%s\n", ZFS_META_VERSION);
return (0);
}
@ -3843,11 +3840,17 @@ _init(void)
int
_fini(void)
{
zfs_detach();
int error;
if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
return (EBUSY);
if ((error = mod_remove(&modlinkage)) != 0)
return (error);
zvol_fini();
zfs_fini();
spa_fini();
#ifdef HAVE_ZPL
if (zfs_nfsshare_inited)
(void) ddi_modclose(nfs_mod);
if (zfs_smbshare_inited)
@ -3855,18 +3858,16 @@ _fini(void)
if (zfs_nfsshare_inited || zfs_smbshare_inited)
(void) ddi_modclose(sharefs_mod);
mutex_destroy(&zfs_share_lock);
tsd_destroy(&zfs_fsyncer_key);
#endif /* HAVE_ZPL */
ldi_ident_release(zfs_li);
zfs_li = NULL;
mutex_destroy(&zfs_share_lock);
return (0);
return (error);
}
#ifdef HAVE_SPL
spl_module_init(_init);
spl_module_exit(_fini);
MODULE_DESCRIPTION("ZFS");
MODULE_AUTHOR(ZFS_META_AUTHOR);
MODULE_LICENSE(ZFS_META_LICENSE);
#endif /* HAVE_SPL */
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}