1 files changed, 183 insertions, 0 deletions

diff --git a/sys/contrib/openzfs/include/os/linux/zfs/sys/zpl.h b/sys/contrib/openzfs/include/os/linux/zfs/sys/zpl.h
new file mode 100644
index 000000000000..ef5a0b842d09
--- /dev/null
+++ b/sys/contrib/openzfs/include/os/linux/zfs/sys/zpl.h
@@ -0,0 +1,183 @@
+/*
+ * 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/mntent.h>
+#include <sys/vfs.h>
+#include <linux/aio.h>
+#include <linux/dcache_compat.h>
+#include <linux/exportfs.h>
+#include <linux/falloc.h>
+#include <linux/parser.h>
+#include <linux/task_io_accounting_ops.h>
+#include <linux/vfs_compat.h>
+#include <linux/writeback.h>
+#include <linux/xattr_compat.h>
+
+/* zpl_inode.c */
+extern void zpl_vap_init(vattr_t *vap, struct inode *dir,
+    umode_t mode, cred_t *cr);
+
+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;
+extern dentry_operations_t zpl_dentry_operations;
+
+/* zpl_file.c */
+extern ssize_t zpl_read_common(struct inode *ip, const char *buf,
+    size_t len, loff_t *ppos, 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 *ppos, 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 */
+extern void zpl_prune_sb(int64_t nr_to_scan, void *arg);
+
+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,
+    const struct qstr *qstr);
+#if defined(CONFIG_FS_POSIX_ACL)
+#if defined(HAVE_SET_ACL)
+extern int zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type);
+#endif /* HAVE_SET_ACL */
+extern struct posix_acl *zpl_get_acl(struct inode *ip, int type);
+extern int zpl_init_acl(struct inode *ip, struct inode *dir);
+extern int zpl_chmod_acl(struct inode *ip);
+#else
+static inline int
+zpl_init_acl(struct inode *ip, struct inode *dir)
+{
+	return (0);
+}
+
+static inline int
+zpl_chmod_acl(struct inode *ip)
+{
+	return (0);
+}
+#endif /* CONFIG_FS_POSIX_ACL */
+
+extern xattr_handler_t *zpl_xattr_handlers[];
+
+/* zpl_ctldir.c */
+extern const struct file_operations zpl_fops_root;
+extern const struct inode_operations zpl_ops_root;
+
+extern const struct file_operations zpl_fops_snapdir;
+extern const struct inode_operations zpl_ops_snapdir;
+extern const struct dentry_operations zpl_dops_snapdirs;
+
+extern const struct file_operations zpl_fops_shares;
+extern const struct inode_operations zpl_ops_shares;
+
+#if defined(HAVE_VFS_ITERATE) || defined(HAVE_VFS_ITERATE_SHARED)
+
+#define	ZPL_DIR_CONTEXT_INIT(_dirent, _actor, _pos) {	\
+	.actor = _actor,				\
+	.pos = _pos,					\
+}
+
+typedef struct dir_context zpl_dir_context_t;
+
+#define	zpl_dir_emit		dir_emit
+#define	zpl_dir_emit_dot	dir_emit_dot
+#define	zpl_dir_emit_dotdot	dir_emit_dotdot
+#define	zpl_dir_emit_dots	dir_emit_dots
+
+#else
+
+typedef struct zpl_dir_context {
+	void *dirent;
+	const filldir_t actor;
+	loff_t pos;
+} zpl_dir_context_t;
+
+#define	ZPL_DIR_CONTEXT_INIT(_dirent, _actor, _pos) {	\
+	.dirent = _dirent,				\
+	.actor = _actor,				\
+	.pos = _pos,					\
+}
+
+static inline bool
+zpl_dir_emit(zpl_dir_context_t *ctx, const char *name, int namelen,
+    uint64_t ino, unsigned type)
+{
+	return (!ctx->actor(ctx->dirent, name, namelen, ctx->pos, ino, type));
+}
+
+static inline bool
+zpl_dir_emit_dot(struct file *file, zpl_dir_context_t *ctx)
+{
+	return (ctx->actor(ctx->dirent, ".", 1, ctx->pos,
+	    file_inode(file)->i_ino, DT_DIR) == 0);
+}
+
+static inline bool
+zpl_dir_emit_dotdot(struct file *file, zpl_dir_context_t *ctx)
+{
+	return (ctx->actor(ctx->dirent, "..", 2, ctx->pos,
+	    parent_ino(file_dentry(file)), DT_DIR) == 0);
+}
+
+static inline bool
+zpl_dir_emit_dots(struct file *file, zpl_dir_context_t *ctx)
+{
+	if (ctx->pos == 0) {
+		if (!zpl_dir_emit_dot(file, ctx))
+			return (false);
+		ctx->pos = 1;
+	}
+	if (ctx->pos == 1) {
+		if (!zpl_dir_emit_dotdot(file, ctx))
+			return (false);
+		ctx->pos = 2;
+	}
+	return (true);
+}
+#endif /* HAVE_VFS_ITERATE */
+
+#if defined(HAVE_INODE_TIMESTAMP_TRUNCATE)
+#define	zpl_inode_timestamp_truncate(ts, ip)	timestamp_truncate(ts, ip)
+#elif defined(HAVE_INODE_TIMESPEC64_TIMES)
+#define	zpl_inode_timestamp_truncate(ts, ip)	\
+	timespec64_trunc(ts, (ip)->i_sb->s_time_gran)
+#else
+#define	zpl_inode_timestamp_truncate(ts, ip)	\
+	timespec_trunc(ts, (ip)->i_sb->s_time_gran)
+#endif
+
+#endif	/* _SYS_ZPL_H */