202 lines
6.1 KiB
C
202 lines
6.1 KiB
C
|
/*
|
||
|
|
* 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,
|
||
|
|
zpl_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);
|
||
|
|
#if defined(HAVE_FILE_FALLOCATE) || defined(HAVE_INODE_FALLOCATE)
|
||
|
|
extern long zpl_fallocate_common(struct inode *ip, int mode,
|
||
|
|
loff_t offset, loff_t len);
|
||
|
|
#endif /* defined(HAVE_FILE_FALLOCATE) || defined(HAVE_INODE_FALLOCATE) */
|
||
|
|
|
||
|
|
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)
|
||
|
|
extern int zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type);
|
||
|
|
extern struct posix_acl *zpl_get_acl(struct inode *ip, int type);
|
||
|
|
#if !defined(HAVE_GET_ACL)
|
||
|
|
#if defined(HAVE_CHECK_ACL_WITH_FLAGS)
|
||
|
|
extern int zpl_check_acl(struct inode *inode, int mask, unsigned int flags);
|
||
|
|
#elif defined(HAVE_CHECK_ACL)
|
||
|
|
extern int zpl_check_acl(struct inode *inode, int mask);
|
||
|
|
#elif defined(HAVE_PERMISSION_WITH_NAMEIDATA)
|
||
|
|
extern int zpl_permission(struct inode *ip, int mask, struct nameidata *nd);
|
||
|
|
#elif defined(HAVE_PERMISSION)
|
||
|
|
extern int zpl_permission(struct inode *ip, int mask);
|
||
|
|
#endif /* HAVE_CHECK_ACL | HAVE_PERMISSION */
|
||
|
|
#endif /* HAVE_GET_ACL */
|
||
|
|
|
||
|
|
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;
|
||
|
|
#ifdef HAVE_AUTOMOUNT
|
||
|
|
extern const struct dentry_operations zpl_dops_snapdirs;
|
||
|
|
#else
|
||
|
|
extern const struct inode_operations zpl_ops_snapdirs;
|
||
|
|
#endif /* HAVE_AUTOMOUNT */
|
||
|
|
|
||
|
|
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 */
|