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[PATCH 1/9] cache-tree: clean up cache_tree_update()

From
Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>
Date
Jan 20, 2021, 16:53 UTC
Message-ID
<0bccfd34ae5924aef0432fd6727debb75c052da5.1611161639.git.gitgitgadget@gmail.com>
In-Reply-To
<pull.839.git.1611161639.gitgitgadget@gmail.com>
From: Derrick Stolee <dstolee@microsoft.com>

Make the method safer by allocating a cache_tree member for the given index_state if it is not already present.

Also drop local variables that are used exactly once and can be found directly from the 'istate' parameter.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 cache-tree.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/cache-tree.c b/cache-tree.c
index 3f1a8d4f1b7..c1e49901c17 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -436,16 +436,20 @@ static int update_one(struct cache_tree *it,
 
 int cache_tree_update(struct index_state *istate, int flags)
 {
-	struct cache_tree *it = istate->cache_tree;
-	struct cache_entry **cache = istate->cache;
-	int entries = istate->cache_nr;
-	int skip, i = verify_cache(cache, entries, flags);
+	int skip, i;
+
+	i = verify_cache(istate->cache, istate->cache_nr, flags);
 
 	if (i)
 		return i;
+
+	if (!istate->cache_tree)
+		istate->cache_tree = cache_tree();
+
 	trace_performance_enter();
 	trace2_region_enter("cache_tree", "update", the_repository);
-	i = update_one(it, cache, entries, "", 0, &skip, flags);
+	i = update_one(istate->cache_tree, istate->cache, istate->cache_nr,
+		       "", 0, &skip, flags);
 	trace2_region_leave("cache_tree", "update", the_repository);
 	trace_performance_leave("cache_tree_update");
 	if (i < 0)
-- 
gitgitgadget
Previous: Derrick Stolee via GitGitGadgetNext: Elijah Newren
Message 2 of 65 in “More index cleanups”
  1. 0/9 More index cleanupsDerrick Stolee via GitGitGadget, Jan 20, 2021
  2. 1/9 cache-tree: clean up cache_tree_update()Derrick Stolee via GitGitGadget, Jan 20, 2021
  3. Elijah NewrenJan 20, 2021
  4. Derrick StoleeJan 20, 2021
  5. 3/9 fsmonitor: de-duplicate BUG()s around dirty bitsDerrick Stolee via GitGitGadget, Jan 20, 2021
  6. Elijah NewrenJan 20, 2021
  7. Chris TorekJan 21, 2021
  8. Derrick StoleeJan 21, 2021
  9. 4/9 repository: add repo reference to index_stateDerrick Stolee via GitGitGadget, Jan 20, 2021
  10. Elijah NewrenJan 20, 2021
  11. Derrick StoleeJan 20, 2021
  12. Elijah NewrenJan 20, 2021
  13. 5/9 name-hash: use trace2 regions for initDerrick Stolee via GitGitGadget, Jan 20, 2021
  14. Elijah NewrenJan 20, 2021
  15. 6/9 sparse-checkout: load sparse-checkout patternsDerrick Stolee via GitGitGadget, Jan 20, 2021
  16. Elijah NewrenJan 20, 2021
  17. 7/9 sparse-checkout: hold pattern list in indexDerrick Stolee via GitGitGadget, Jan 20, 2021
  18. Elijah NewrenJan 20, 2021
  19. Derrick StoleeJan 20, 2021
  20. 8/9 test-lib: test_region looks for trace2 regionsDerrick Stolee via GitGitGadget, Jan 20, 2021
  21. Elijah NewrenJan 20, 2021
  22. Derrick StoleeJan 20, 2021
  23. 2/9 cache-tree: extract subtree_pos()Derrick Stolee via GitGitGadget, Jan 20, 2021
  24. Elijah NewrenJan 20, 2021
  25. 9/9 t1092: test interesting sparse-checkout scenariosDerrick Stolee via GitGitGadget, Jan 20, 2021
  26. Elijah NewrenJan 20, 2021
  27. Derrick StoleeJan 21, 2021
  28. 0/8 More index cleanupsDerrick Stolee via GitGitGadget, Jan 22, 2021
  29. 7/8 test-lib: test_region looks for trace2 regionsDerrick Stolee via GitGitGadget, Jan 22, 2021
  30. Junio C HamanoJan 22, 2021
  31. Derrick StoleeJan 23, 2021
  32. Junio C HamanoJan 23, 2021
  33. 8/8 t1092: test interesting sparse-checkout scenariosDerrick Stolee via GitGitGadget, Jan 22, 2021
  34. 6/8 sparse-checkout: load sparse-checkout patternsDerrick Stolee via GitGitGadget, Jan 22, 2021
  35. 4/8 repository: add repo reference to index_stateDerrick Stolee via GitGitGadget, Jan 22, 2021
  36. Junio C HamanoJan 22, 2021
  37. 5/8 name-hash: use trace2 regions for initDerrick Stolee via GitGitGadget, Jan 22, 2021
  38. 3/8 fsmonitor: de-duplicate BUG()s around dirty bitsDerrick Stolee via GitGitGadget, Jan 22, 2021
  39. Junio C HamanoJan 22, 2021
  40. 2/8 cache-tree: extract subtree_pos()Derrick Stolee via GitGitGadget, Jan 22, 2021
  41. 1/8 cache-tree: clean up cache_tree_update()Derrick Stolee via GitGitGadget, Jan 22, 2021
  42. Junio C HamanoJan 22, 2021
  43. Elijah NewrenJan 22, 2021
  44. Derrick StoleeJan 23, 2021
  45. 0/9 More index cleanupsDerrick Stolee via GitGitGadget, Jan 23, 2021
  46. 3/9 cache-tree: extract subtree_pos()Derrick Stolee via GitGitGadget, Jan 23, 2021
  47. 2/9 cache-tree: simplify verify_cache() prototypeDerrick Stolee via GitGitGadget, Jan 23, 2021
  48. Elijah NewrenJan 23, 2021
  49. Derrick StoleeJan 23, 2021
  50. Elijah NewrenJan 23, 2021
  51. Junio C HamanoJan 23, 2021
  52. Junio C HamanoJan 23, 2021
  53. Derrick StoleeJan 23, 2021
  54. 4/9 fsmonitor: de-duplicate BUG()s around dirty bitsDerrick Stolee via GitGitGadget, Jan 23, 2021
  55. 1/9 cache-tree: clean up cache_tree_update()Derrick Stolee via GitGitGadget, Jan 23, 2021
  56. 5/9 repository: add repo reference to index_stateDerrick Stolee via GitGitGadget, Jan 23, 2021
  57. 6/9 name-hash: use trace2 regions for initDerrick Stolee via GitGitGadget, Jan 23, 2021
  58. 8/9 test-lib: test_region looks for trace2 regionsDerrick Stolee via GitGitGadget, Jan 23, 2021
  59. Derrick StoleeJan 23, 2021
  60. 7/9 sparse-checkout: load sparse-checkout patternsDerrick Stolee via GitGitGadget, Jan 23, 2021
  61. 9/9 t1092: test interesting sparse-checkout scenariosDerrick Stolee via GitGitGadget, Jan 23, 2021
  62. Elijah NewrenJan 25, 2021
  63. Elijah NewrenJan 23, 2021
  64. Derrick StoleeJan 23, 2021
  65. Junio C HamanoJan 23, 2021

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