From: Jonathan Nieder <jrnieder@gmail.com>
To: git@vger.kernel.org
Cc: Stefan Beller <sbeller@google.com>,
"brian m. carlson" <sandals@crustytoothpaste.net>,
Jeff King <peff@peff.net>
Subject: [PATCH 01/39] pack: make packed_git_mru global a value instead of a pointer
Date: Tue, 29 Aug 2017 23:48:27 -0700 [thread overview]
Message-ID: <20170830064827.GB153983@aiede.mtv.corp.google.com> (raw)
In-Reply-To: <20170830064634.GA153983@aiede.mtv.corp.google.com>
The MRU cache that keeps track of recently used packs is represented
using two global variables:
struct mru packed_git_mru_storage;
struct mru *packed_git_mru = &packed_git_mru_storage;
Callers never assign to the packed_git_mru pointer, though, so we can
simplify by eliminating it and using &packed_git_mru_storage (renamed
to &packed_git_mru) directly. This variable is only used by the
packfile subsystem, making this a relatively uninvasive change (and
any new unadapted callers would trigger a compile error).
Noticed while moving these globals to the object_store struct.
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
builtin/pack-objects.c | 4 ++--
cache.h | 4 ++--
packfile.c | 12 +++++-------
3 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 82ad6e0c81..ad53d4fa72 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -1012,7 +1012,7 @@ static int want_object_in_pack(const unsigned char *sha1,
return want;
}
- for (entry = packed_git_mru->head; entry; entry = entry->next) {
+ for (entry = packed_git_mru.head; entry; entry = entry->next) {
struct packed_git *p = entry->item;
off_t offset;
@@ -1030,7 +1030,7 @@ static int want_object_in_pack(const unsigned char *sha1,
}
want = want_found_object(exclude, p);
if (!exclude && want > 0)
- mru_mark(packed_git_mru, entry);
+ mru_mark(&packed_git_mru, entry);
if (want != -1)
return want;
}
diff --git a/cache.h b/cache.h
index a916bc79e3..49b083ee0a 100644
--- a/cache.h
+++ b/cache.h
@@ -4,6 +4,7 @@
#include "git-compat-util.h"
#include "strbuf.h"
#include "hashmap.h"
+#include "mru.h"
#include "advice.h"
#include "gettext.h"
#include "convert.h"
@@ -1589,8 +1590,7 @@ extern struct packed_git {
* A most-recently-used ordered version of the packed_git list, which can
* be iterated instead of packed_git (and marked via mru_mark).
*/
-struct mru;
-extern struct mru *packed_git_mru;
+extern struct mru packed_git_mru;
struct pack_entry {
off_t offset;
diff --git a/packfile.c b/packfile.c
index f86fa051c9..f69a5c8d60 100644
--- a/packfile.c
+++ b/packfile.c
@@ -40,9 +40,7 @@ static unsigned int pack_max_fds;
static size_t peak_pack_mapped;
static size_t pack_mapped;
struct packed_git *packed_git;
-
-static struct mru packed_git_mru_storage;
-struct mru *packed_git_mru = &packed_git_mru_storage;
+struct mru packed_git_mru;
#define SZ_FMT PRIuMAX
static inline uintmax_t sz_fmt(size_t s) { return s; }
@@ -861,9 +859,9 @@ static void prepare_packed_git_mru(void)
{
struct packed_git *p;
- mru_clear(packed_git_mru);
+ mru_clear(&packed_git_mru);
for (p = packed_git; p; p = p->next)
- mru_append(packed_git_mru, p);
+ mru_append(&packed_git_mru, p);
}
static int prepare_packed_git_run_once = 0;
@@ -1832,9 +1830,9 @@ int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
if (!packed_git)
return 0;
- for (p = packed_git_mru->head; p; p = p->next) {
+ for (p = packed_git_mru.head; p; p = p->next) {
if (fill_pack_entry(sha1, e, p->item)) {
- mru_mark(packed_git_mru, p);
+ mru_mark(&packed_git_mru, p);
return 1;
}
}
--
2.14.1.581.gf28d330327
next prev parent reply other threads:[~2017-08-30 6:48 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 6:46 [PATCH 00/39] per-repository object store, part 1 Jonathan Nieder
2017-08-30 6:48 ` Jonathan Nieder [this message]
2017-08-30 19:44 ` [PATCH 01/39] pack: make packed_git_mru global a value instead of a pointer Jeff King
2017-09-06 19:51 ` Junio C Hamano
2017-08-30 6:52 ` [PATCH 02/39] repository: introduce object store field Jonathan Nieder
2017-08-30 6:53 ` [PATCH 03/39] object-store: move alt_odb_list and alt_odb_tail to object store Jonathan Nieder
2017-08-30 6:54 ` [PATCH 04/39] object-store: move packed_git and packed_git_mru " Jonathan Nieder
2017-08-30 6:54 ` [PATCH 05/39] pack: move prepare_packed_git_run_once " Jonathan Nieder
2017-08-30 6:55 ` [PATCH 06/39] pack: move approximate object count " Jonathan Nieder
2017-08-30 6:56 ` [PATCH 07/39] sha1_file: add repository argument to alt_odb_usable Jonathan Nieder
2017-08-30 22:40 ` Brandon Williams
2017-08-30 6:57 ` [PATCH 08/39] sha1_file: add repository argument to link_alt_odb_entry Jonathan Nieder
2017-08-30 6:58 ` [PATCH 09/39] sha1_file: add repository argument to read_info_alternates Jonathan Nieder
2017-08-30 6:58 ` [PATCH 10/39] sha1_file: add repository argument to link_alt_odb_entries Jonathan Nieder
2017-08-30 6:59 ` [PATCH 11/39] sha1_file: add repository argument to stat_sha1_file Jonathan Nieder
2017-08-30 6:59 ` [PATCH 12/39] sha1_file: add repository argument to open_sha1_file Jonathan Nieder
2017-08-30 7:00 ` [PATCH 13/39] sha1_file: add repository argument to map_sha1_file_1 Jonathan Nieder
2017-08-30 7:01 ` [PATCH 14/39] sha1_file: add repository argument to sha1_loose_object_info Jonathan Nieder
2017-08-30 7:01 ` [PATCH 15/39] object-store: add repository argument to prepare_alt_odb Jonathan Nieder
2017-08-30 7:02 ` [PATCH 16/39] object-store: add repository argument to foreach_alt_odb Jonathan Nieder
2017-08-30 7:02 ` [PATCH 17/39] pack: add repository argument to install_packed_git Jonathan Nieder
2017-08-30 7:03 ` [PATCH 18/39] pack: add repository argument to prepare_packed_git_one Jonathan Nieder
2017-08-30 7:03 ` [PATCH 19/39] pack: add repository argument to rearrange_packed_git Jonathan Nieder
2017-08-30 7:04 ` [PATCH 20/39] pack: add repository argument to prepare_packed_git_mru Jonathan Nieder
2017-08-30 7:05 ` [PATCH 21/39] pack: add repository argument to prepare_packed_git Jonathan Nieder
2017-08-30 7:06 ` [PATCH 22/39] pack: add repository argument to reprepare_packed_git Jonathan Nieder
2017-08-30 7:06 ` [PATCH 23/39] pack: add repository argument to sha1_file_name Jonathan Nieder
2017-08-30 7:07 ` [PATCH 24/39] pack: add repository argument to map_sha1_file Jonathan Nieder
2017-08-30 7:08 ` [PATCH 25/39] sha1_file: allow alt_odb_usable to handle arbitrary repositories Jonathan Nieder
2017-09-06 20:01 ` Junio C Hamano
2017-09-06 21:59 ` Stefan Beller
2017-08-30 7:10 ` [PATCH 26/39] object-store: allow prepare_alt_odb " Jonathan Nieder
2017-08-30 7:11 ` [PATCH 27/39] object-store: allow foreach_alt_odb " Jonathan Nieder
2017-08-30 7:11 ` [PATCH 28/39] pack: allow install_packed_git " Jonathan Nieder
2017-08-30 7:12 ` [PATCH 29/39] pack: allow rearrange_packed_git " Jonathan Nieder
2017-08-30 7:12 ` [PATCH 30/39] pack: allow prepare_packed_git_mru " Jonathan Nieder
2017-08-30 7:13 ` [PATCH 31/39] pack: allow prepare_packed_git_one " Jonathan Nieder
2017-08-30 7:13 ` [PATCH 32/39] pack: allow prepare_packed_git " Jonathan Nieder
2017-08-30 7:14 ` [PATCH 33/39] pack: allow reprepare_packed_git " Jonathan Nieder
2017-08-30 7:14 ` [PATCH 34/39] pack: allow sha1_file_name " Jonathan Nieder
2017-08-30 7:15 ` [PATCH 35/39] pack: allow stat_sha1_file " Jonathan Nieder
2017-08-30 7:16 ` [PATCH 36/39] pack: allow open_sha1_file " Jonathan Nieder
2017-08-30 7:16 ` [PATCH 37/39] pack: allow map_sha1_file_1 " Jonathan Nieder
2017-08-30 7:16 ` [PATCH 38/39] pack: allow map_sha1_file " Jonathan Nieder
2017-08-30 7:18 ` [PATCH 39/39] pack: allow sha1_loose_object_info " Jonathan Nieder
2017-08-30 23:07 ` [PATCH 00/39] per-repository object store, part 1 Brandon Williams
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