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authorFelix Blyakher <felixb@sgi.com>2009-03-30 22:17:44 -0500
committerFelix Blyakher <felixb@sgi.com>2009-03-30 22:17:44 -0500
commit5123bc35d2bd2e5c344a53e634edec2cd0861a0e (patch)
tree86f56040b6a8d394c30b7f6bc48d9c001851c2b2 /fs/xfs/support/uuid.c
parent930861c4e6f13ce2e7d06cd1ef11441a065517d9 (diff)
parent27174203f570b923e5c02c618a5557295bab8755 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/fs/xfs/xfs
Diffstat (limited to 'fs/xfs/support/uuid.c')
-rw-r--r--fs/xfs/support/uuid.c71
1 files changed, 0 insertions, 71 deletions
diff --git a/fs/xfs/support/uuid.c b/fs/xfs/support/uuid.c
index 5830c040ea7..b83f76b6d41 100644
--- a/fs/xfs/support/uuid.c
+++ b/fs/xfs/support/uuid.c
@@ -17,10 +17,6 @@
*/
#include <xfs.h>
-static DEFINE_MUTEX(uuid_monitor);
-static int uuid_table_size;
-static uuid_t *uuid_table;
-
/* IRIX interpretation of an uuid_t */
typedef struct {
__be32 uu_timelow;
@@ -46,12 +42,6 @@ uuid_getnodeuniq(uuid_t *uuid, int fsid [2])
fsid[1] = be32_to_cpu(uup->uu_timelow);
}
-void
-uuid_create_nil(uuid_t *uuid)
-{
- memset(uuid, 0, sizeof(*uuid));
-}
-
int
uuid_is_nil(uuid_t *uuid)
{
@@ -71,64 +61,3 @@ uuid_equal(uuid_t *uuid1, uuid_t *uuid2)
{
return memcmp(uuid1, uuid2, sizeof(uuid_t)) ? 0 : 1;
}
-
-/*
- * Given a 128-bit uuid, return a 64-bit value by adding the top and bottom
- * 64-bit words. NOTE: This function can not be changed EVER. Although
- * brain-dead, some applications depend on this 64-bit value remaining
- * persistent. Specifically, DMI vendors store the value as a persistent
- * filehandle.
- */
-__uint64_t
-uuid_hash64(uuid_t *uuid)
-{
- __uint64_t *sp = (__uint64_t *)uuid;
-
- return sp[0] + sp[1];
-}
-
-int
-uuid_table_insert(uuid_t *uuid)
-{
- int i, hole;
-
- mutex_lock(&uuid_monitor);
- for (i = 0, hole = -1; i < uuid_table_size; i++) {
- if (uuid_is_nil(&uuid_table[i])) {
- hole = i;
- continue;
- }
- if (uuid_equal(uuid, &uuid_table[i])) {
- mutex_unlock(&uuid_monitor);
- return 0;
- }
- }
- if (hole < 0) {
- uuid_table = kmem_realloc(uuid_table,
- (uuid_table_size + 1) * sizeof(*uuid_table),
- uuid_table_size * sizeof(*uuid_table),
- KM_SLEEP);
- hole = uuid_table_size++;
- }
- uuid_table[hole] = *uuid;
- mutex_unlock(&uuid_monitor);
- return 1;
-}
-
-void
-uuid_table_remove(uuid_t *uuid)
-{
- int i;
-
- mutex_lock(&uuid_monitor);
- for (i = 0; i < uuid_table_size; i++) {
- if (uuid_is_nil(&uuid_table[i]))
- continue;
- if (!uuid_equal(uuid, &uuid_table[i]))
- continue;
- uuid_create_nil(&uuid_table[i]);
- break;
- }
- ASSERT(i < uuid_table_size);
- mutex_unlock(&uuid_monitor);
-}