Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / fs / xfs / support / uuid.c

diff --git a/fs/xfs/support/uuid.c b/fs/xfs/support/uuid.c
index 81f40cf..e157015 100644 (file)
--- a/fs/xfs/support/uuid.c
+++ b/fs/xfs/support/uuid.c
@@ -1,46 +1,34 @@
 /*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
  *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is distributed in the hope that it would 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 for more details.
  *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
-
 #include <xfs.h>
 
 static mutex_t uuid_monitor;
 static int     uuid_table_size;
 static uuid_t  *uuid_table;
 
-void
-uuid_init(void)
-{
-       mutex_init(&uuid_monitor, MUTEX_DEFAULT, "uuid_monitor");
-}
+/* IRIX interpretation of an uuid_t */
+typedef struct {
+       __be32  uu_timelow;
+       __be16  uu_timemid;
+       __be16  uu_timehi;
+       __be16  uu_clockseq;
+       __be16  uu_node[3];
+} xfs_uu_t;
 
 /*
  * uuid_getnodeuniq - obtain the node unique fields of a UUID.
@@ -51,16 +39,11 @@ uuid_init(void)
 void
 uuid_getnodeuniq(uuid_t *uuid, int fsid [2])
 {
-       char    *uu = (char *)uuid;
+       xfs_uu_t *uup = (xfs_uu_t *)uuid;
 
-       /* on IRIX, this function assumes big-endian fields within
-        * the uuid, so we use INT_GET to get the same result on
-        * little-endian systems
-        */
-
-       fsid[0] = (INT_GET(*(u_int16_t*)(uu+8), ARCH_CONVERT) << 16) +
-                  INT_GET(*(u_int16_t*)(uu+4), ARCH_CONVERT);
-       fsid[1] =  INT_GET(*(u_int32_t*)(uu  ), ARCH_CONVERT);
+       fsid[0] = (be16_to_cpu(uup->uu_clockseq) << 16) |
+                  be16_to_cpu(uup->uu_timemid);
+       fsid[1] = be32_to_cpu(uup->uu_timelow);
 }
 
 void
@@ -109,7 +92,7 @@ uuid_table_insert(uuid_t *uuid)
 {
        int     i, hole;
 
-       mutex_lock(&uuid_monitor, PVFS);
+       mutex_lock(&uuid_monitor);
        for (i = 0, hole = -1; i < uuid_table_size; i++) {
                if (uuid_is_nil(&uuid_table[i])) {
                        hole = i;
@@ -137,7 +120,7 @@ uuid_table_remove(uuid_t *uuid)
 {
        int     i;
 
-       mutex_lock(&uuid_monitor, PVFS);
+       mutex_lock(&uuid_monitor);
        for (i = 0; i < uuid_table_size; i++) {
                if (uuid_is_nil(&uuid_table[i]))
                        continue;
@@ -149,3 +132,9 @@ uuid_table_remove(uuid_t *uuid)
        ASSERT(i < uuid_table_size);
        mutex_unlock(&uuid_monitor);
 }
+
+void
+uuid_init(void)
+{
+       mutex_init(&uuid_monitor);
+}