IB/mthca: Semaphore to mutex conversions

Convert semaphores to mutexes in mthca.  Leave firmware command
interface poll_sem and event_sem as semaphores.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 18 insertions, 18 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 9fb985a016e9..d709cb162a72 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -50,7 +50,7 @@ enum {
 };
 
 struct mthca_user_db_table {
-        struct semaphore mutex;
+        struct mutex mutex;
         struct {
                 u64                uvirt;
                 struct scatterlist mem;
@@ -158,7 +158,7 @@ int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int ob
         int ret = 0;
         u8 status;
 
-        down(&table->mutex);
+        mutex_lock(&table->mutex);
 
         if (table->icm[i]) {
                 ++table->icm[i]->refcount;
@@ -184,7 +184,7 @@ int mthca_table_get(struct mthca_dev *dev, struct mthca_icm_table *table, int ob
         ++table->icm[i]->refcount;
 
 out:
-        up(&table->mutex);
+        mutex_unlock(&table->mutex);
         return ret;
 }
 
@@ -198,7 +198,7 @@ void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int o
 
         i = (obj & (table->num_obj - 1)) * table->obj_size / MTHCA_TABLE_CHUNK_SIZE;
 
-        down(&table->mutex);
+        mutex_lock(&table->mutex);
 
         if (--table->icm[i]->refcount == 0) {
                 mthca_UNMAP_ICM(dev, table->virt + i * MTHCA_TABLE_CHUNK_SIZE,
@@ -207,7 +207,7 @@ void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int o
                 table->icm[i] = NULL;
         }
 
-        up(&table->mutex);
+        mutex_unlock(&table->mutex);
 }
 
 void *mthca_table_find(struct mthca_icm_table *table, int obj)
@@ -220,7 +220,7 @@ void *mthca_table_find(struct mthca_icm_table *table, int obj)
         if (!table->lowmem)
                 return NULL;
 
-        down(&table->mutex);
+        mutex_lock(&table->mutex);
 
         idx = (obj & (table->num_obj - 1)) * table->obj_size;
         icm = table->icm[idx / MTHCA_TABLE_CHUNK_SIZE];
@@ -240,7 +240,7 @@ void *mthca_table_find(struct mthca_icm_table *table, int obj)
         }
 
 out:
-        up(&table->mutex);
+        mutex_unlock(&table->mutex);
         return page ? lowmem_page_address(page) + offset : NULL;
 }
 
@@ -301,7 +301,7 @@ struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev,
         table->num_obj  = nobj;
         table->obj_size = obj_size;
         table->lowmem   = use_lowmem;
-        init_MUTEX(&table->mutex);
+        mutex_init(&table->mutex);
 
         for (i = 0; i < num_icm; ++i)
                 table->icm[i] = NULL;
@@ -380,7 +380,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
         if (index < 0 || index > dev->uar_table.uarc_size / 8)
                 return -EINVAL;
 
-        down(&db_tab->mutex);
+        mutex_lock(&db_tab->mutex);
 
         i = index / MTHCA_DB_REC_PER_PAGE;
 
@@ -424,7 +424,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
         db_tab->page[i].refcount = 1;
 
 out:
-        up(&db_tab->mutex);
+        mutex_unlock(&db_tab->mutex);
         return ret;
 }
 
@@ -439,11 +439,11 @@ void mthca_unmap_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
          * pages until we clean up the whole db table.
          */
 
-        down(&db_tab->mutex);
+        mutex_lock(&db_tab->mutex);
 
         --db_tab->page[index / MTHCA_DB_REC_PER_PAGE].refcount;
 
-        up(&db_tab->mutex);
+        mutex_unlock(&db_tab->mutex);
 }
 
 struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev)
@@ -460,7 +460,7 @@ struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev)
         if (!db_tab)
                 return ERR_PTR(-ENOMEM);
 
-        init_MUTEX(&db_tab->mutex);
+        mutex_init(&db_tab->mutex);
         for (i = 0; i < npages; ++i) {
                 db_tab->page[i].refcount = 0;
                 db_tab->page[i].uvirt    = 0;
@@ -499,7 +499,7 @@ int mthca_alloc_db(struct mthca_dev *dev, enum mthca_db_type type,
         int ret = 0;
         u8 status;
 
-        down(&dev->db_tab->mutex);
+        mutex_lock(&dev->db_tab->mutex);
 
         switch (type) {
         case MTHCA_DB_TYPE_CQ_ARM:
@@ -585,7 +585,7 @@ found:
         *db = (__be32 *) &page->db_rec[j];
 
 out:
-        up(&dev->db_tab->mutex);
+        mutex_unlock(&dev->db_tab->mutex);
 
         return ret;
 }
@@ -601,7 +601,7 @@ void mthca_free_db(struct mthca_dev *dev, int type, int db_index)
 
         page = dev->db_tab->page + i;
 
-        down(&dev->db_tab->mutex);
+        mutex_lock(&dev->db_tab->mutex);
 
         page->db_rec[j] = 0;
         if (i >= dev->db_tab->min_group2)
@@ -624,7 +624,7 @@ void mthca_free_db(struct mthca_dev *dev, int type, int db_index)
                         ++dev->db_tab->min_group2;
         }
 
-        up(&dev->db_tab->mutex);
+        mutex_unlock(&dev->db_tab->mutex);
 }
 
 int mthca_init_db_tab(struct mthca_dev *dev)
@@ -638,7 +638,7 @@ int mthca_init_db_tab(struct mthca_dev *dev)
         if (!dev->db_tab)
                 return -ENOMEM;
 
-        init_MUTEX(&dev->db_tab->mutex);
+        mutex_init(&dev->db_tab->mutex);
 
         dev->db_tab->npages     = dev->uar_table.uarc_size / 4096;
         dev->db_tab->max_group1 = 0;