static int
zpl_sync_fs(struct super_block *sb, int wait)
{
cred_t *cr = CRED();
int error;
crhold(cr);
error = -zfs_sync(sb, wait, cr);
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
zpl_sync_fs(struct super_block *sb, int wait)
{
fstrans_cookie_t cookie;
cred_t *cr = CRED();
int error;
crhold(cr);
cookie = spl_fstrans_mark();
error = -zfs_sync(sb, wait, cr);
spl_fstrans_unmark(cookie);
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
zfs_mountroot(vfs_t *vfsp, enum whymountroot why)
{
int error = 0;
int ret = 0;
static int zfsrootdone = 0;
zfsvfs_t *zfsvfs = NULL;
znode_t *zp = NULL;
vnode_t *vp = NULL;
ASSERT(vfsp);
/*
* The filesystem that we mount as root is defined in
* /etc/system using the zfsroot variable. The value defined
* there is copied early in startup code to zfs_bootpath
* (defined in modsysfile.c).
*/
if (why == ROOT_INIT) {
if (zfsrootdone++)
return (EBUSY);
/*
* This needs to be done here, so that when we return from
* mountroot, the vfs resource name will be set correctly.
*/
if (snprintf(rootfs.bo_name, BO_MAXOBJNAME, "%s", zfs_bootpath)
>= BO_MAXOBJNAME)
return (ENAMETOOLONG);
if (error = vfs_lock(vfsp))
return (error);
if (error = zfs_domount(vfsp, zfs_bootpath, CRED()))
goto out;
zfsvfs = (zfsvfs_t *)vfsp->vfs_data;
ASSERT(zfsvfs);
if (error = zfs_zget(zfsvfs, zfsvfs->z_root, &zp))
goto out;
vp = ZTOV(zp);
mutex_enter(&vp->v_lock);
vp->v_flag |= VROOT;
mutex_exit(&vp->v_lock);
rootvp = vp;
/*
* The zfs_zget call above returns with a hold on vp, we release
* it here.
*/
VN_RELE(vp);
/*
* Mount root as readonly initially, it will be remouted
* read/write by /lib/svc/method/fs-usr.
*/
readonly_changed_cb(vfsp->vfs_data, B_TRUE);
vfs_add((struct vnode *)0, vfsp,
(vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0);
out:
vfs_unlock(vfsp);
ret = (error) ? error : 0;
return (ret);
} else if (why == ROOT_REMOUNT) {
readonly_changed_cb(vfsp->vfs_data, B_FALSE);
vfsp->vfs_flag |= VFS_REMOUNT;
return (zfs_refresh_properties(vfsp));
} else if (why == ROOT_UNMOUNT) {
zfs_unregister_callbacks((zfsvfs_t *)vfsp->vfs_data);
(void) zfs_sync(vfsp, 0, 0);
return (0);
}
/*
* if "why" is equal to anything else other than ROOT_INIT,
* ROOT_REMOUNT, or ROOT_UNMOUNT, we do not support it.
*/
return (ENOTSUP);
}
