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 <[email protected]>
Reviewed-by: Brian Paul <[email protected]>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/mesa/main/arbprogram.c b/src/mesa/main/arbprogram.c
index f474951d729..3f7acda9f32 100644
--- a/src/mesa/main/arbprogram.c
+++ b/src/mesa/main/arbprogram.c
@@ -200,13 +200,18 @@ _mesa_GenProgramsARB(GLsizei n, GLuint *ids)
    if (!ids)
       return;
 
+   _mesa_HashLockMutex(ctx->Shared->Programs);
+
    first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
 
    /* Insert pointer to dummy program as placeholder */
    for (i = 0; i < (GLuint) n; i++) {
-      _mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram);
+      _mesa_HashInsertLocked(ctx->Shared->Programs, first + i,
+                             &_mesa_DummyProgram);
    }
 
+   _mesa_HashUnlockMutex(ctx->Shared->Programs);
+
    /* Return the program names */
    for (i = 0; i < (GLuint) n; i++) {
       ids[i] = first + i;