--- /dev/null
+/*
+ * 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) 2011, Lawrence Livermore National Security, LLC.
+ */
+
+#ifndef _SYS_ZPL_H
+#define _SYS_ZPL_H
+
+#include <sys/vfs.h>
+
+/* zpl_inode.c */
+extern const struct inode_operations zpl_inode_operations;
+extern const struct inode_operations zpl_dir_inode_operations;
+extern const struct inode_operations zpl_symlink_inode_operations;
+extern const struct inode_operations zpl_special_inode_operations;
+
+/* zpl_file.c */
+extern ssize_t zpl_read_common(struct inode *ip, const char *buf,
+ size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr);
+extern ssize_t zpl_write_common(struct inode *ip, const char *buf,
+ size_t len, loff_t pos, uio_seg_t segment, int flags, cred_t *cr);
+
+extern const struct address_space_operations zpl_address_space_operations;
+extern const struct file_operations zpl_file_operations;
+extern const struct file_operations zpl_dir_file_operations;
+
+/* zpl_super.c */
+typedef struct zpl_mount_data {
+ const char *z_osname; /* Dataset name */
+ void *z_data; /* Mount options string */
+ struct vfsmount *z_vfs; /* VFS mount point */
+} zpl_mount_data_t;
+
+extern const struct super_operations zpl_super_operations;
+/* extern const struct export_operations zpl_export_operations; */
+extern struct file_system_type zpl_fs_type;
+
+/* zpl_xattr.c */
+extern ssize_t zpl_xattr_list(struct dentry *dentry, char *buf, size_t size);
+extern int zpl_xattr_security_init(struct inode *ip, struct inode *dip);
+
+extern struct xattr_handler *zpl_xattr_handlers[];
+
+#endif /* _SYS_ZPL_H */
--- /dev/null
+/*
+ * 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) 2011, Lawrence Livermore National Security, LLC.
+ */
+
+
+#include <sys/zfs_vfsops.h>
+#include <sys/zfs_vnops.h>
+#include <sys/zfs_znode.h>
+#include <sys/zpl.h>
+
+
+static int
+zpl_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+ struct dentry *dentry = filp->f_path.dentry;
+ cred_t *cr;
+ int error;
+
+ cr = (cred_t *)get_current_cred();
+ error = -zfs_readdir(dentry->d_inode, dirent, filldir,
+ &filp->f_pos, cr);
+ put_cred(cr);
+ ASSERT3S(error, <=, 0);
+
+ return (error);
+}
+
+static int
+zpl_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+ cred_t *cr;
+ int error;
+
+ cr = (cred_t *)get_current_cred();
+ error = -zfs_fsync(filp->f_path.dentry->d_inode, datasync, cr);
+ put_cred(cr);
+ ASSERT3S(error, <=, 0);
+
+ return (error);
+}
+
+ssize_t
+zpl_read_common(struct inode *ip, const char *buf, size_t len, loff_t pos,
+ uio_seg_t segment, int flags, cred_t *cr)
+{
+ int error;
+ struct iovec iov;
+ uio_t uio;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = len;
+
+ uio.uio_iov = &iov;
+ uio.uio_resid = len;
+ uio.uio_iovcnt = 1;
+ uio.uio_loffset = pos;
+ uio.uio_limit = MAXOFFSET_T;
+ uio.uio_segflg = segment;
+
+ error = -zfs_read(ip, &uio, flags, cr);
+ if (error < 0)
+ return (error);
+
+ return (len - uio.uio_resid);
+}
+
+static ssize_t
+zpl_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)
+{
+ cred_t *cr;
+ ssize_t read;
+
+ cr = (cred_t *)get_current_cred();
+ read = zpl_read_common(filp->f_mapping->host, buf, len, *ppos,
+ UIO_USERSPACE, filp->f_flags, cr);
+ put_cred(cr);
+
+ if (read < 0)
+ return (read);
+
+ *ppos += read;
+ return (read);
+}
+
+ssize_t
+zpl_write_common(struct inode *ip, const char *buf, size_t len, loff_t pos,
+ uio_seg_t segment, int flags, cred_t *cr)
+{
+ int error;
+ struct iovec iov;
+ uio_t uio;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = len;
+
+ uio.uio_iov = &iov;
+ uio.uio_resid = len,
+ uio.uio_iovcnt = 1;
+ uio.uio_loffset = pos;
+ uio.uio_limit = MAXOFFSET_T;
+ uio.uio_segflg = segment;
+
+ error = -zfs_write(ip, &uio, flags, cr);
+ if (error < 0)
+ return (error);
+
+ return (len - uio.uio_resid);
+}
+
+static ssize_t
+zpl_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
+{
+ cred_t *cr;
+ ssize_t wrote;
+
+ cr = (cred_t *)get_current_cred();
+ wrote = zpl_write_common(filp->f_mapping->host, buf, len, *ppos,
+ UIO_USERSPACE, filp->f_flags, cr);
+ put_cred(cr);
+
+ if (wrote < 0)
+ return (wrote);
+
+ *ppos += wrote;
+ return (wrote);
+}
+
+const struct address_space_operations zpl_address_space_operations = {
+#if 0
+ .readpage = zpl_readpage,
+ .writepage = zpl_writepage,
+ .direct_IO = zpl_direct_IO,
+#endif
+};
+
+const struct file_operations zpl_file_operations = {
+ .open = generic_file_open,
+ .llseek = generic_file_llseek,
+ .read = zpl_read, /* do_sync_read */
+ .write = zpl_write, /* do_sync_write */
+ .readdir = zpl_readdir,
+ .mmap = generic_file_mmap,
+ .fsync = zpl_fsync,
+ .aio_read = NULL, /* generic_file_aio_read */
+ .aio_write = NULL, /* generic_file_aio_write */
+};
+
+const struct file_operations zpl_dir_file_operations = {
+ .llseek = generic_file_llseek,
+ .read = generic_read_dir,
+ .readdir = zpl_readdir,
+ .fsync = zpl_fsync,
+};
git://git.camperquake.de / zfs.git / commitdiff