mesa: Replace uses of Shared->Mutex with hash-table mutexes

We were locking the Shared->Mutex and then using calling functions like
_mesa_HashInsert that do additional per-hash-table locking internally.

Instead just lock each hash-table's mutex and use functions like
_mesa_HashInsertLocked and the new _mesa_HashRemoveLocked.

In order to do this, we need to remove the locking from
_mesa_HashFindFreeKeyBlock since it will always be called with the
per-hash-table lock taken.

Reviewed-by: Timothy Arceri <t_arceri@yahoo.com.au>
Reviewed-by: Brian Paul <brianp@vmware.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mesa/main/atifragshader.c b/src/mesa/main/atifragshader.c
index 34f45c6..83a449a 100644
--- a/src/mesa/main/atifragshader.c
+++ b/src/mesa/main/atifragshader.c
@@ -201,11 +201,15 @@ _mesa_GenFragmentShadersATI(GLuint range)
       return 0;
    }
 
+   _mesa_HashLockMutex(ctx->Shared->ATIShaders);
+
    first = _mesa_HashFindFreeKeyBlock(ctx->Shared->ATIShaders, range);
    for (i = 0; i < range; i++) {
-      _mesa_HashInsert(ctx->Shared->ATIShaders, first + i, &DummyShader);
+      _mesa_HashInsertLocked(ctx->Shared->ATIShaders, first + i, &DummyShader);
    }
 
+   _mesa_HashUnlockMutex(ctx->Shared->ATIShaders);
+
    return first;
 }