[PATCH 3/4] staging/lustre/obdclass: remove unused file linkea.c

[Oleg Drokin]

Also unused header file lustre_linkea.h

Signed-off-by: Oleg Drokin <green@xxxxxxxxxxxxxx>
---
 .../staging/lustre/lustre/include/lustre_linkea.h  |  57 ------
 drivers/staging/lustre/lustre/obdclass/linkea.c    | 194 ---------------------
 2 files changed, 251 deletions(-)
 delete mode 100644 drivers/staging/lustre/lustre/include/lustre_linkea.h
 delete mode 100644 drivers/staging/lustre/lustre/obdclass/linkea.c

diff --git a/drivers/staging/lustre/lustre/include/lustre_linkea.h b/drivers/staging/lustre/lustre/include/lustre_linkea.h
deleted file mode 100644
index 500ace3..0000000
--- a/drivers/staging/lustre/lustre/include/lustre_linkea.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * 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) 2013, Intel Corporation.
- * Use is subject to license terms.
- *
- * Author: di wang <di.wang@xxxxxxxxx>
- */
-
-struct linkea_data {
-	/**
-	 * Buffer to keep link EA body.
-	 */
-	struct lu_buf		*ld_buf;
-	/**
-	 * The matched header, entry and its length in the EA
-	 */
-	struct link_ea_header	*ld_leh;
-	struct link_ea_entry	*ld_lee;
-	int			ld_reclen;
-};
-
-int linkea_data_new(struct linkea_data *ldata, struct lu_buf *buf);
-int linkea_init(struct linkea_data *ldata);
-void linkea_entry_unpack(const struct link_ea_entry *lee, int *reclen,
-			 struct lu_name *lname, struct lu_fid *pfid);
-int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
-		   const struct lu_fid *pfid);
-void linkea_del_buf(struct linkea_data *ldata, const struct lu_name *lname);
-int linkea_links_find(struct linkea_data *ldata, const struct lu_name *lname,
-		      const struct lu_fid  *pfid);
-
-#define LINKEA_NEXT_ENTRY(ldata)	\
-	(struct link_ea_entry *)((char *)ldata.ld_lee + ldata.ld_reclen)
-
-#define LINKEA_FIRST_ENTRY(ldata)	\
-	(struct link_ea_entry *)(ldata.ld_leh + 1)
diff --git a/drivers/staging/lustre/lustre/obdclass/linkea.c b/drivers/staging/lustre/lustre/obdclass/linkea.c
deleted file mode 100644
index 8a1c7b6..0000000
--- a/drivers/staging/lustre/lustre/obdclass/linkea.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * 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) 2013, Intel Corporation.
- * Use is subject to license terms.
- *
- * Author: Di Wang <di.wang@xxxxxxxxx>
- */
-
-#include "../include/lustre/lustre_idl.h"
-#include "../include/obd.h"
-#include "../include/lustre_linkea.h"
-
-int linkea_data_new(struct linkea_data *ldata, struct lu_buf *buf)
-{
-	ldata->ld_buf = lu_buf_check_and_alloc(buf, PAGE_CACHE_SIZE);
-	if (ldata->ld_buf->lb_buf == NULL)
-		return -ENOMEM;
-	ldata->ld_leh = ldata->ld_buf->lb_buf;
-	ldata->ld_leh->leh_magic = LINK_EA_MAGIC;
-	ldata->ld_leh->leh_len = sizeof(struct link_ea_header);
-	ldata->ld_leh->leh_reccount = 0;
-	return 0;
-}
-EXPORT_SYMBOL(linkea_data_new);
-
-int linkea_init(struct linkea_data *ldata)
-{
-	struct link_ea_header *leh;
-
-	LASSERT(ldata->ld_buf != NULL);
-	leh = ldata->ld_buf->lb_buf;
-	if (leh->leh_magic == __swab32(LINK_EA_MAGIC)) {
-		leh->leh_magic = LINK_EA_MAGIC;
-		leh->leh_reccount = __swab32(leh->leh_reccount);
-		leh->leh_len = __swab64(leh->leh_len);
-		/* entries are swabbed by linkea_entry_unpack */
-	}
-	if (leh->leh_magic != LINK_EA_MAGIC)
-		return -EINVAL;
-	if (leh->leh_reccount == 0)
-		return -ENODATA;
-
-	ldata->ld_leh = leh;
-	return 0;
-}
-EXPORT_SYMBOL(linkea_init);
-
-/**
- * Pack a link_ea_entry.
- * All elements are stored as chars to avoid alignment issues.
- * Numbers are always big-endian
- * \retval record length
- */
-static int linkea_entry_pack(struct link_ea_entry *lee,
-			     const struct lu_name *lname,
-			     const struct lu_fid *pfid)
-{
-	struct lu_fid   tmpfid;
-	int	     reclen;
-
-	fid_cpu_to_be(&tmpfid, pfid);
-	if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_CRASH))
-		tmpfid.f_ver = ~0;
-	memcpy(&lee->lee_parent_fid, &tmpfid, sizeof(tmpfid));
-	memcpy(lee->lee_name, lname->ln_name, lname->ln_namelen);
-	reclen = sizeof(struct link_ea_entry) + lname->ln_namelen;
-
-	lee->lee_reclen[0] = (reclen >> 8) & 0xff;
-	lee->lee_reclen[1] = reclen & 0xff;
-	return reclen;
-}
-
-void linkea_entry_unpack(const struct link_ea_entry *lee, int *reclen,
-			 struct lu_name *lname, struct lu_fid *pfid)
-{
-	*reclen = (lee->lee_reclen[0] << 8) | lee->lee_reclen[1];
-	memcpy(pfid, &lee->lee_parent_fid, sizeof(*pfid));
-	fid_be_to_cpu(pfid, pfid);
-	lname->ln_name = lee->lee_name;
-	lname->ln_namelen = *reclen - sizeof(struct link_ea_entry);
-}
-EXPORT_SYMBOL(linkea_entry_unpack);
-
-/**
- * Add a record to the end of link ea buf
- **/
-int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
-		   const struct lu_fid *pfid)
-{
-	LASSERT(ldata->ld_leh != NULL);
-
-	if (lname == NULL || pfid == NULL)
-		return -EINVAL;
-
-	ldata->ld_reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
-	if (ldata->ld_leh->leh_len + ldata->ld_reclen >
-	    ldata->ld_buf->lb_len) {
-		if (lu_buf_check_and_grow(ldata->ld_buf,
-					  ldata->ld_leh->leh_len +
-					  ldata->ld_reclen) < 0)
-			return -ENOMEM;
-	}
-
-	ldata->ld_leh = ldata->ld_buf->lb_buf;
-	ldata->ld_lee = ldata->ld_buf->lb_buf + ldata->ld_leh->leh_len;
-	ldata->ld_reclen = linkea_entry_pack(ldata->ld_lee, lname, pfid);
-	ldata->ld_leh->leh_len += ldata->ld_reclen;
-	ldata->ld_leh->leh_reccount++;
-	CDEBUG(D_INODE, "New link_ea name '%.*s' is added\n",
-	       lname->ln_namelen, lname->ln_name);
-	return 0;
-}
-EXPORT_SYMBOL(linkea_add_buf);
-
-/** Del the current record from the link ea buf */
-void linkea_del_buf(struct linkea_data *ldata, const struct lu_name *lname)
-{
-	LASSERT(ldata->ld_leh != NULL && ldata->ld_lee != NULL);
-
-	ldata->ld_leh->leh_reccount--;
-	ldata->ld_leh->leh_len -= ldata->ld_reclen;
-	memmove(ldata->ld_lee, (char *)ldata->ld_lee + ldata->ld_reclen,
-		(char *)ldata->ld_leh + ldata->ld_leh->leh_len -
-		(char *)ldata->ld_lee);
-	CDEBUG(D_INODE, "Old link_ea name '%.*s' is removed\n",
-	       lname->ln_namelen, lname->ln_name);
-}
-EXPORT_SYMBOL(linkea_del_buf);
-
-/**
- * Check if such a link exists in linkEA.
- *
- * \param ldata link data the search to be done on
- * \param lname name in the parent's directory entry pointing to this object
- * \param pfid parent fid the link to be found for
- *
- * \retval   0 success
- * \retval -ENOENT link does not exist
- * \retval -ve on error
- */
-int linkea_links_find(struct linkea_data *ldata, const struct lu_name *lname,
-		      const struct lu_fid  *pfid)
-{
-	struct lu_name tmpname;
-	struct lu_fid  tmpfid;
-	int count;
-
-	LASSERT(ldata->ld_leh != NULL);
-
-	/* link #0 */
-	ldata->ld_lee = (struct link_ea_entry *)(ldata->ld_leh + 1);
-
-	for (count = 0; count < ldata->ld_leh->leh_reccount; count++) {
-		linkea_entry_unpack(ldata->ld_lee, &ldata->ld_reclen,
-				    &tmpname, &tmpfid);
-		if (tmpname.ln_namelen == lname->ln_namelen &&
-		    lu_fid_eq(&tmpfid, pfid) &&
-		    (strncmp(tmpname.ln_name, lname->ln_name,
-			     tmpname.ln_namelen) == 0))
-			break;
-		ldata->ld_lee = (struct link_ea_entry *)((char *)ldata->ld_lee +
-							 ldata->ld_reclen);
-	}
-
-	if (count == ldata->ld_leh->leh_reccount) {
-		CDEBUG(D_INODE, "Old link_ea name '%.*s' not found\n",
-		       lname->ln_namelen, lname->ln_name);
-		ldata->ld_lee = NULL;
-		return -ENOENT;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(linkea_links_find);
-- 
1.9.3

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