Merge branch 'jk/commit-buffer-length'

Move "commit->buffer" out of the in-core commit object and keep
track of their lengths.  Use this to optimize the code paths to
validate GPG signatures in commit objects.

* jk/commit-buffer-length:
  reuse cached commit buffer when parsing signatures
  commit: record buffer length in cache
  commit: convert commit->buffer to a slab
  commit-slab: provide a static initializer
  use get_commit_buffer everywhere
  convert logmsg_reencode to get_commit_buffer
  use get_commit_buffer to avoid duplicate code
  use get_cached_commit_buffer where appropriate
  provide helpers to access the commit buffer
  provide a helper to set the commit buffer
  provide a helper to free commit buffer
  sequencer: use logmsg_reencode in get_message
  logmsg_reencode: return const buffer
  do not create "struct commit" with xcalloc
  commit: push commit_index update into alloc_commit_node
  alloc: include any-object allocations in alloc_report
  replace dangerous uses of strbuf_attach
  commit_tree: take a pointer/len pair rather than a const strbuf

1 files changed, 2 insertions, 2 deletions

diff --git a/log-tree.c b/log-tree.c
index cf2f86c866..10e68442b3 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -376,7 +376,7 @@ static void show_signature(struct rev_info *opt, struct commit *commit)
 	struct strbuf gpg_output = STRBUF_INIT;
 	int status;
 
-	if (parse_signed_commit(commit->object.sha1, &payload, &signature) <= 0)
+	if (parse_signed_commit(commit, &payload, &signature) <= 0)
 		goto out;
 
 	status = verify_signed_buffer(payload.buf, payload.len,
@@ -588,7 +588,7 @@ void show_log(struct rev_info *opt)
 		show_mergetag(opt, commit);
 	}
 
-	if (!commit->buffer)
+	if (!get_cached_commit_buffer(commit, NULL))
 		return;
 
 	if (opt->show_notes) {