Commit bb21ed15 authored by Oleg Drokin's avatar Oleg Drokin Committed by Greg Kroah-Hartman
Browse files

staging/lustre/obdclass: remove unused file md_attrs.c 



It's only used by server side luster for on-disk structure swabbing.

And also remove forward declarations for its functions from
md_object.h and lustre_idl.h

Signed-off-by: default avatarOleg Drokin <green@linuxhacker.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 74d3ba98

drivers/staging/lustre/lustre/include/lustre/lustre_idl.h

+0 −6
Original line number Diff line number Diff line
@@ -321,9 +321,6 @@ enum lma_incompat { 
};

#define LMA_INCOMPAT_SUPP	(LMAI_AGENT | LMAI_REMOTE_PARENT)



extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);

extern void lustre_lma_init(struct lustre_mdt_attrs *lma,

			    const struct lu_fid *fid, __u32 incompat);

/**

 * SOM on-disk attributes stored in a separate xattr.

 */
@@ -344,8 +341,6 @@ struct som_attrs { 
	/** mds mount id the size is valid for */

	__u64	som_mountid;

};

extern void lustre_som_swab(struct som_attrs *attrs);



#define SOM_INCOMPAT_SUPP 0x0



/**
@@ -362,7 +357,6 @@ struct hsm_attrs { 
	/** version associated with the last archiving, if any */

	__u64	hsm_arch_ver;

};

extern void lustre_hsm_swab(struct hsm_attrs *attrs);



/**

 * fid constants

drivers/staging/lustre/lustre/include/md_object.h

+0 −4
Original line number Diff line number Diff line
@@ -854,10 +854,6 @@ struct lu_local_obj_desc { 
	struct list_head		       llod_linkage;

};



int lustre_buf2som(void *buf, int rc, struct md_som_data *msd);

int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh);

void lustre_hsm2buf(void *buf, struct md_hsm *mh);



struct lu_ucred {

	__u32	       uc_valid;

	__u32	       uc_o_uid;

drivers/staging/lustre/lustre/obdclass/md_attrs.c

deleted100644 → 0
+0 −199
Original line number Diff line number Diff line 
/*

 * GPL HEADER START

 *

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 only,

 * as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License version 2 for more details (a copy is included

 * in the LICENSE file that accompanied this code).

 *

 * You should have received a copy of the GNU General Public License

 * version 2 along with this program; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 021110-1307, USA

 *

 * GPL HEADER END

 */

/*

 * Copyright (c) 2012, Intel Corporation.

 * Use is subject to license terms.

 *

 * Author: Johann Lombardi <johann.lombardi@intel.com>

 */



#include "../include/lustre/lustre_idl.h"

#include "../include/obd.h"

#include "../include/md_object.h"



/**

 * Initialize new \a lma. Only fid is stored.

 *

 * \param lma - is the new LMA structure to be initialized

 * \param fid - is the FID of the object this LMA belongs to

 * \param incompat - features that MDS must understand to access object

 */

void lustre_lma_init(struct lustre_mdt_attrs *lma, const struct lu_fid *fid,

		     __u32 incompat)

{

	lma->lma_compat   = 0;

	lma->lma_incompat = incompat;

	lma->lma_self_fid = *fid;



	/* If a field is added in struct lustre_mdt_attrs, zero it explicitly

	 * and change the test below. */

	LASSERT(sizeof(*lma) ==

		(offsetof(struct lustre_mdt_attrs, lma_self_fid) +

		 sizeof(lma->lma_self_fid)));

};

EXPORT_SYMBOL(lustre_lma_init);



/**

 * Swab, if needed, LMA structure which is stored on-disk in little-endian order.

 *

 * \param lma - is a pointer to the LMA structure to be swabbed.

 */

void lustre_lma_swab(struct lustre_mdt_attrs *lma)

{

	/* Use LUSTRE_MSG_MAGIC to detect local endianness. */

	if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {

		__swab32s(&lma->lma_compat);

		__swab32s(&lma->lma_incompat);

		lustre_swab_lu_fid(&lma->lma_self_fid);

	}

};

EXPORT_SYMBOL(lustre_lma_swab);



/**

 * Swab, if needed, SOM structure which is stored on-disk in little-endian

 * order.

 *

 * \param attrs - is a pointer to the SOM structure to be swabbed.

 */

void lustre_som_swab(struct som_attrs *attrs)

{

	/* Use LUSTRE_MSG_MAGIC to detect local endianness. */

	if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {

		__swab32s(&attrs->som_compat);

		__swab32s(&attrs->som_incompat);

		__swab64s(&attrs->som_ioepoch);

		__swab64s(&attrs->som_size);

		__swab64s(&attrs->som_blocks);

		__swab64s(&attrs->som_mountid);

	}

};

EXPORT_SYMBOL(lustre_som_swab);



/*

 * Swab and extract SOM attributes from on-disk xattr.

 *

 * \param buf - is a buffer containing the on-disk SOM extended attribute.

 * \param rc  - is the SOM xattr stored in \a buf

 * \param msd - is the md_som_data structure where to extract SOM attributes.

 */

int lustre_buf2som(void *buf, int rc, struct md_som_data *msd)

{

	struct som_attrs *attrs = (struct som_attrs *)buf;



	if (rc == 0 ||  rc == -ENODATA)

		/* no SOM attributes */

		return -ENODATA;



	if (rc < 0)

		/* error hit while fetching xattr */

		return rc;



	/* check SOM compatibility */

	if (attrs->som_incompat & ~cpu_to_le32(SOM_INCOMPAT_SUPP))

		return -ENODATA;



	/* unpack SOM attributes */

	lustre_som_swab(attrs);



	/* fill in-memory msd structure */

	msd->msd_compat   = attrs->som_compat;

	msd->msd_incompat = attrs->som_incompat;

	msd->msd_ioepoch  = attrs->som_ioepoch;

	msd->msd_size     = attrs->som_size;

	msd->msd_blocks   = attrs->som_blocks;

	msd->msd_mountid  = attrs->som_mountid;



	return 0;

}

EXPORT_SYMBOL(lustre_buf2som);



/**

 * Swab, if needed, HSM structure which is stored on-disk in little-endian

 * order.

 *

 * \param attrs - is a pointer to the HSM structure to be swabbed.

 */

void lustre_hsm_swab(struct hsm_attrs *attrs)

{

	/* Use LUSTRE_MSG_MAGIC to detect local endianness. */

	if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {

		__swab32s(&attrs->hsm_compat);

		__swab32s(&attrs->hsm_flags);

		__swab64s(&attrs->hsm_arch_id);

		__swab64s(&attrs->hsm_arch_ver);

	}

};

EXPORT_SYMBOL(lustre_hsm_swab);



/*

 * Swab and extract HSM attributes from on-disk xattr.

 *

 * \param buf - is a buffer containing the on-disk HSM extended attribute.

 * \param rc  - is the HSM xattr stored in \a buf

 * \param mh  - is the md_hsm structure where to extract HSM attributes.

 */

int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh)

{

	struct hsm_attrs *attrs = (struct hsm_attrs *)buf;



	if (rc == 0 ||  rc == -ENODATA)

		/* no HSM attributes */

		return -ENODATA;



	if (rc < 0)

		/* error hit while fetching xattr */

		return rc;



	/* unpack HSM attributes */

	lustre_hsm_swab(attrs);



	/* fill md_hsm structure */

	mh->mh_compat   = attrs->hsm_compat;

	mh->mh_flags    = attrs->hsm_flags;

	mh->mh_arch_id  = attrs->hsm_arch_id;

	mh->mh_arch_ver = attrs->hsm_arch_ver;



	return 0;

}

EXPORT_SYMBOL(lustre_buf2hsm);



/*

 * Pack HSM attributes.

 *

 * \param buf - is the output buffer where to pack the on-disk HSM xattr.

 * \param mh  - is the md_hsm structure to pack.

 */

void lustre_hsm2buf(void *buf, struct md_hsm *mh)

{

	struct hsm_attrs *attrs = (struct hsm_attrs *)buf;



	/* copy HSM attributes */

	attrs->hsm_compat   = mh->mh_compat;

	attrs->hsm_flags    = mh->mh_flags;

	attrs->hsm_arch_id  = mh->mh_arch_id;

	attrs->hsm_arch_ver = mh->mh_arch_ver;



	/* pack xattr */

	lustre_hsm_swab(attrs);

}

EXPORT_SYMBOL(lustre_hsm2buf);