cregit-Linux how code gets into the kernel

Release 4.16 fs/orangefs/downcall.h

Directory: fs/orangefs
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * (C) 2001 Clemson University and The University of Chicago
 *
 * See COPYING in top-level directory.
 */

/*
 *  Definitions of downcalls used in Linux kernel module.
 */

#ifndef __DOWNCALL_H

#define __DOWNCALL_H

/*
 * Sanitized the device-client core interaction
 * for clean 32-64 bit usage
 */

struct orangefs_io_response {
	
__s64 amt_complete;
};


struct orangefs_lookup_response {
	
struct orangefs_object_kref refn;
};


struct orangefs_create_response {
	
struct orangefs_object_kref refn;
};


struct orangefs_symlink_response {
	
struct orangefs_object_kref refn;
};


struct orangefs_getattr_response {
	
struct ORANGEFS_sys_attr_s attributes;
	
char link_target[ORANGEFS_NAME_MAX];
};


struct orangefs_mkdir_response {
	
struct orangefs_object_kref refn;
};


struct orangefs_statfs_response {
	
__s64 block_size;
	
__s64 blocks_total;
	
__s64 blocks_avail;
	
__s64 files_total;
	
__s64 files_avail;
};


struct orangefs_fs_mount_response {
	
__s32 fs_id;
	
__s32 id;
	
struct orangefs_khandle root_khandle;
};

/* the getxattr response is the attribute value */

struct orangefs_getxattr_response {
	
__s32 val_sz;
	
__s32 __pad1;
	
char val[ORANGEFS_MAX_XATTR_VALUELEN];
};

/* the listxattr response is an array of attribute names */

struct orangefs_listxattr_response {
	
__s32 returned_count;
	
__s32 __pad1;
	
__u64 token;
	
char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
	
__s32 keylen;
	
__s32 __pad2;
	
__s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
};


struct orangefs_param_response {
	
union {
		
__s64 value64;
		
__s32 value32[2];
	
} u;
};


#define PERF_COUNT_BUF_SIZE 4096

struct orangefs_perf_count_response {
	
char buffer[PERF_COUNT_BUF_SIZE];
};


#define FS_KEY_BUF_SIZE 4096

struct orangefs_fs_key_response {
	
__s32 fs_keylen;
	
__s32 __pad1;
	
char fs_key[FS_KEY_BUF_SIZE];
};

/* 2.9.6 */

struct orangefs_features_response {
	
__u64 features;
};


struct orangefs_downcall_s {
	
__s32 type;
	
__s32 status;
	/* currently trailer is used only by readdir */
	
__s64 trailer_size;
	
char *trailer_buf;

	
union {
		
struct orangefs_io_response io;
		
struct orangefs_lookup_response lookup;
		
struct orangefs_create_response create;
		
struct orangefs_symlink_response sym;
		
struct orangefs_getattr_response getattr;
		
struct orangefs_mkdir_response mkdir;
		
struct orangefs_statfs_response statfs;
		
struct orangefs_fs_mount_response fs_mount;
		
struct orangefs_getxattr_response getxattr;
		
struct orangefs_listxattr_response listxattr;
		
struct orangefs_param_response param;
		
struct orangefs_perf_count_response perf_count;
		
struct orangefs_fs_key_response fs_key;
		
struct orangefs_features_response features;
	
} resp;
};

/*
 * The readdir response comes in the trailer.  It is followed by the
 * directory entries as described in dir.c.
 */


struct orangefs_readdir_response_s {
	
__u64 token;
	
__u64 directory_version;
	
__u32 __pad2;
	
__u32 orangefs_dirent_outcount;
};

#endif /* __DOWNCALL_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Mike Marshall25579.19%114.29%
Yi Liu3912.11%114.29%
Martin Brandenburg278.39%457.14%
Greg Kroah-Hartman10.31%114.29%
Total322100.00%7100.00%
Directory: fs/orangefs
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