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Jonathan Tan a7f7e84a49 index-pack: remove redundant child field 
This is refactoring 1 of 2 to simplify struct base_data.

In index-pack, each thread maintains a doubly-linked list of the delta
chain that it is currently processing (the "base" and "child" pointers
in struct base_data). When a thread exceeds the delta base cache limit
and needs to reclaim memory, it uses the "child" pointers to traverse
the lineage, reclaiming the memory of the eldest delta bases first.

A subsequent patch will perform memory reclaiming in a different way and
will thus no longer need the "child" pointer. Because the "child"
pointer is redundant even now, remove it so that the aforementioned
subsequent patch will be clearer. In the meantime, reclaim memory in the
reverse order of the "base" pointers.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-24 14:11:14 -07:00
..
add.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
am.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
annotate.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
apply.c
archive.c
bisect--helper.c Merge branch 'al/bisect-first-parent' 2020-08-17 17:02:45 -07:00
blame.c messages: avoid SHA-1 in end-user facing messages 2020-08-14 09:33:37 -07:00
branch.c Merge branch 'es/get-worktrees-unsort' 2020-07-06 22:09:15 -07:00
bundle.c Merge branch 'bc/sha-256-part-3' 2020-08-11 18:04:11 -07:00
cat-file.c Merge branch 'cc/cat-file-usage-update' into master 2020-07-09 14:00:41 -07:00
check-attr.c
check-ignore.c
check-mailmap.c config: don't include config.h by default 2017-06-15 12:56:22 -07:00
check-ref-format.c
checkout-index.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
checkout.c checkout: support renormalization with checkout -m <paths> 2020-08-03 11:48:15 -07:00
clean.c clean: optimize and document cases where we recurse into subdirectories 2020-06-12 17:27:16 -07:00
clone.c Merge branch 'jk/strvec' 2020-08-10 10:23:57 -07:00
column.c
commit-graph.c Merge branch 'ds/commit-graph-bloom-updates' into master 2020-07-30 13:20:31 -07:00
commit-tree.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
commit.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
config.c worktree: drop get_worktrees() unused 'flags' argument 2020-06-22 10:31:15 -07:00
count-objects.c
credential.c
describe.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
diff-files.c diff-files: treat "i-t-a" files as "not-in-index" 2020-06-22 10:46:45 -07:00
diff-index.c
diff-tree.c diff-tree.c: load notes machinery when required 2020-04-20 18:22:54 -07:00
diff.c Merge branch 'ct/diff-with-merge-base-clarification' into master 2020-07-09 14:00:43 -07:00
difftool.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
env--helper.c
fast-export.c fast-export: use local array to store anonymized oid 2020-06-25 14:19:23 -07:00
fetch-pack.c Merge branch 'jt/cdn-offload' 2020-06-25 12:27:47 -07:00
fetch.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
fmt-merge-msg.c Lib-ify fmt-merge-msg 2020-03-24 15:04:43 -07:00
for-each-ref.c Merge branch 'jk/for-each-ref-multi-key-sort-fix' 2020-05-08 14:25:04 -07:00
fsck.c fsck: do not lazy fetch known non-promisor object 2020-08-06 13:01:03 -07:00
gc.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
get-tar-commit-id.c
grep.c Merge branch 'jk/strvec' 2020-08-10 10:23:57 -07:00
hash-object.c
help.c help: drop usage of 'common' and 'useful' for guides 2020-08-04 18:34:01 -07:00
index-pack.c index-pack: remove redundant child field 2020-08-24 14:11:14 -07:00
init-db.c repository: enable SHA-256 support by default 2020-07-30 09:16:49 -07:00
interpret-trailers.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
log.c Merge branch 'jk/log-fp-implies-m' 2020-08-17 17:02:49 -07:00
ls-files.c Merge branch 'dl/opt-callback-cleanup' 2020-05-05 14:54:27 -07:00
ls-remote.c strvec: convert builtin/ callers away from argv_array name 2020-07-28 15:02:18 -07:00
ls-tree.c
mailinfo.c
mailsplit.c
merge-base.c
merge-file.c
merge-index.c
merge-ours.c
merge-recursive.c
merge-tree.c
merge.c merge: make merge.renormalize work for all uses of merge machinery 2020-08-03 11:48:15 -07:00
mktag.c sha1-file: allow check_object_signature() to handle any repo 2020-01-31 10:45:39 -08:00
mktree.c
multi-pack-index.c
mv.c git-mv: improve error message for conflicted file 2020-07-20 14:35:43 -07:00
name-rev.c messages: avoid SHA-1 in end-user facing messages 2020-08-14 09:33:37 -07:00
notes.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
pack-objects.c Merge branch 'jc/object-names-are-not-sha-1' 2020-08-19 16:14:52 -07:00
pack-redundant.c
pack-refs.c
patch-id.c
prune-packed.c Lib-ify prune-packed 2020-03-24 15:04:44 -07:00
prune.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
pull.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
push.c Merge branch 'dl/push-recurse-submodules-fix' 2020-05-05 14:54:28 -07:00
range-diff.c strvec: convert builtin/ callers away from argv_array name 2020-07-28 15:02:18 -07:00
read-tree.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
rebase.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
receive-pack.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
reflog.c Merge branch 'es/get-worktrees-unsort' 2020-07-06 22:09:15 -07:00
remote-ext.c strvec: convert builtin/ callers away from argv_array name 2020-07-28 15:02:18 -07:00
remote-fd.c
remote.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
repack.c strvec: fix indentation in renamed calls 2020-07-28 15:02:18 -07:00
replace.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
rerere.c
reset.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
rev-list.c bisect: combine args passed to find_bisection() 2020-08-07 15:13:03 -07:00
rev-parse.c Merge branch 'tb/shallow-cleanup' 2020-05-13 12:19:18 -07:00
revert.c
rm.c
send-pack.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
shortlog.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
show-branch.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
show-index.c builtin/show-index: provide options to determine hash algo 2020-05-27 10:07:07 -07:00
show-ref.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
sparse-checkout.c Merge branch 'xl/upgrade-repo-format' 2020-06-29 14:17:24 -07:00
stash.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
stripspace.c
submodule--helper.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
symbolic-ref.c
tag.c Merge branch 'jk/for-each-ref-multi-key-sort-fix' 2020-05-08 14:25:04 -07:00
unpack-file.c
unpack-objects.c
update-index.c Use OPT_CALLBACK and OPT_CALLBACK_F 2020-04-28 10:47:10 -07:00
update-ref.c strvec: rename files from argv-array to strvec 2020-07-28 15:02:17 -07:00
update-server-info.c
upload-archive.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
upload-pack.c
var.c
verify-commit.c
verify-pack.c Merge branch 'bc/sha-256-part-3' 2020-08-11 18:04:11 -07:00
verify-tag.c
worktree.c strvec: rename struct fields 2020-07-30 19:18:06 -07:00
write-tree.c