LU-6142 libcfs: use BIT() macro where appropriate

[fs/lustre-release.git] / libcfs / include / libcfs / libcfs_hash.h

diff --git a/libcfs/include/libcfs/libcfs_hash.h b/libcfs/include/libcfs/libcfs_hash.h
index b541fe3..d0e452c 100644 (file)
--- a/libcfs/include/libcfs/libcfs_hash.h
+++ b/libcfs/include/libcfs/libcfs_hash.h
@@ -118,48 +118,49 @@ struct cfs_hash_bd {
  * common hash attributes.
  */
 enum cfs_hash_tag {
-        /**
-         * don't need any lock, caller will protect operations with it's
-         * own lock. With this flag:
-         *  . CFS_HASH_NO_BKTLOCK, CFS_HASH_RW_BKTLOCK, CFS_HASH_SPIN_BKTLOCK
-         *    will be ignored.
-         *  . Some functions will be disabled with this flag, i.e:
-         *    cfs_hash_for_each_empty, cfs_hash_rehash
-         */
-        CFS_HASH_NO_LOCK        = 1 << 0,
-        /** no bucket lock, use one spinlock to protect the whole hash */
-        CFS_HASH_NO_BKTLOCK     = 1 << 1,
-        /** rwlock to protect bucket */
-        CFS_HASH_RW_BKTLOCK     = 1 << 2,
+       /**
+        * don't need any lock, caller will protect operations with it's
+        * own lock. With this flag:
+        *  . CFS_HASH_NO_BKTLOCK, CFS_HASH_RW_BKTLOCK, CFS_HASH_SPIN_BKTLOCK
+        *    will be ignored.
+        *  . Some functions will be disabled with this flag, i.e:
+        *    cfs_hash_for_each_empty, cfs_hash_rehash
+        */
+       CFS_HASH_NO_LOCK        = BIT(0),
+       /** no bucket lock, use one spinlock to protect the whole hash */
+       CFS_HASH_NO_BKTLOCK     = BIT(1),
+       /** rwlock to protect bucket */
+       CFS_HASH_RW_BKTLOCK     = BIT(2),
        /** spinlock to protect bucket */
-        CFS_HASH_SPIN_BKTLOCK   = 1 << 3,
-        /** always add new item to tail */
-        CFS_HASH_ADD_TAIL       = 1 << 4,
-        /** hash-table doesn't have refcount on item */
-        CFS_HASH_NO_ITEMREF     = 1 << 5,
-        /** big name for param-tree */
-        CFS_HASH_BIGNAME        = 1 << 6,
-        /** track global count */
-        CFS_HASH_COUNTER        = 1 << 7,
-        /** rehash item by new key */
-        CFS_HASH_REHASH_KEY     = 1 << 8,
-        /** Enable dynamic hash resizing */
-        CFS_HASH_REHASH         = 1 << 9,
-        /** can shrink hash-size */
-        CFS_HASH_SHRINK         = 1 << 10,
-        /** assert hash is empty on exit */
-        CFS_HASH_ASSERT_EMPTY   = 1 << 11,
-        /** record hlist depth */
-        CFS_HASH_DEPTH          = 1 << 12,
-        /**
-         * rehash is always scheduled in a different thread, so current
-         * change on hash table is non-blocking
-         */
-        CFS_HASH_NBLK_CHANGE    = 1 << 13,
+       CFS_HASH_SPIN_BKTLOCK   = BIT(3),
+       /** always add new item to tail */
+       CFS_HASH_ADD_TAIL       = BIT(4),
+       /** hash-table doesn't have refcount on item */
+       CFS_HASH_NO_ITEMREF     = BIT(5),
+       /** big name for param-tree */
+       CFS_HASH_BIGNAME        = BIT(6),
+       /** track global count */
+       CFS_HASH_COUNTER        = BIT(7),
+       /** rehash item by new key */
+       CFS_HASH_REHASH_KEY     = BIT(8),
+       /** Enable dynamic hash resizing */
+       CFS_HASH_REHASH         = BIT(9),
+       /** can shrink hash-size */
+       CFS_HASH_SHRINK         = BIT(10),
+       /** assert hash is empty on exit */
+       CFS_HASH_ASSERT_EMPTY   = BIT(11),
+       /** record hlist depth */
+       CFS_HASH_DEPTH          = BIT(12),
+       /**
+        * rehash is always scheduled in a different thread, so current
+        * change on hash table is non-blocking
+        */
+       CFS_HASH_NBLK_CHANGE    = BIT(13),
        /** rw semaphore lock to protect bucket */
-       CFS_HASH_RW_SEM_BKTLOCK = 1 << 14,
-        /** NB, we typed hs_flags as  __u16, please change it
-         * if you need to extend >=16 flags */
+       CFS_HASH_RW_SEM_BKTLOCK = BIT(14),
+       /** NB, we typed hs_flags as  __u16, please change it
+        * if you need to extend >=16 flags
+        */
 };
 
 /** most used attributes */