[PATCH v9 08/10] config: make `packed_git_(limit|window_size)` non-global variables
- From
Karthik Nayak <karthik.188@gmail.com>
- Date
- Nov 26, 2024, 10:57 UTC
- Message-ID
- <bce9196f6b7b1fca338aaac265def9072b07e7ca.1732618495.git.karthik.188@gmail.com>
- In-Reply-To
- <cover.1732618495.git.karthik.188@gmail.com>
The variables `packed_git_window_size` and `packed_git_limit` are global config variables used in the `packfile.c` file. Since it is only used in this file, let's change it from being a global config variable to a local variable for the subsystem.
With this, we rid `packfile.c` from all global variable usage and this means we can also remove the `USE_THE_REPOSITORY_VARIABLE` guard from the file.
Helped-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Karthik Nayak <karthik.188@gmail.com> --- builtin/fast-import.c | 4 ++-- config.c | 17 ----------------- environment.c | 2 -- packfile.c | 23 +++++++++++++++-------- packfile.h | 2 +- repo-settings.c | 13 +++++++++++++ repo-settings.h | 4 ++++ 7 files changed, 35 insertions(+), 30 deletions(-)
diff --git a/builtin/fast-import.c b/builtin/fast-import.c index 3ccc4c5722..0ece070260 100644 --- a/builtin/fast-import.c +++ b/builtin/fast-import.c @@ -3539,7 +3539,7 @@ static void parse_argv(void) int cmd_fast_import(int argc, const char **argv, const char *prefix, - struct repository *repo UNUSED) + struct repository *repo) { unsigned int i; @@ -3660,7 +3660,7 @@ int cmd_fast_import(int argc, fprintf(stderr, " pools: %10lu KiB\n", (unsigned long)((tree_entry_allocd + fi_mem_pool.pool_alloc) /1024)); fprintf(stderr, " objects: %10" PRIuMAX " KiB\n", (alloc_count*sizeof(struct object_entry))/1024); fprintf(stderr, "---------------------------------------------------------------------\n"); - pack_report(); + pack_report(repo); fprintf(stderr, "---------------------------------------------------------------------\n"); fprintf(stderr, "\n"); } diff --git a/config.c b/config.c index 728ef98e42..2c295f7430 100644 --- a/config.c +++ b/config.c @@ -1493,28 +1493,11 @@ static int git_default_core_config(const char *var, const char *value, return 0; } - if (!strcmp(var, "core.packedgitwindowsize")) { - int pgsz_x2 = getpagesize() * 2; - packed_git_window_size = git_config_ulong(var, value, ctx->kvi); - - /* This value must be multiple of (pagesize * 2) */ - packed_git_window_size /= pgsz_x2; - if (packed_git_window_size < 1) - packed_git_window_size = 1; - packed_git_window_size *= pgsz_x2; - return 0; - } - if (!strcmp(var, "core.bigfilethreshold")) { big_file_threshold = git_config_ulong(var, value, ctx->kvi); return 0; } - if (!strcmp(var, "core.packedgitlimit")) { - packed_git_limit = git_config_ulong(var, value, ctx->kvi); - return 0; - } - if (!strcmp(var, "core.autocrlf")) { if (value && !strcasecmp(value, "input")) { auto_crlf = AUTO_CRLF_INPUT; diff --git a/environment.c b/environment.c index 8e5022c282..8389a27270 100644 --- a/environment.c +++ b/environment.c @@ -49,8 +49,6 @@ int fsync_object_files = -1; int use_fsync = -1; enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT; enum fsync_component fsync_components = FSYNC_COMPONENTS_DEFAULT; -size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; -size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; unsigned long big_file_threshold = 512 * 1024 * 1024; char *editor_program; char *askpass_program; diff --git a/packfile.c b/packfile.c index 64248ca664..2e0e28c7de 100644 --- a/packfile.c +++ b/packfile.c @@ -1,4 +1,3 @@ -#define USE_THE_REPOSITORY_VARIABLE #include "git-compat-util.h" #include "environment.h" @@ -46,15 +45,15 @@ static size_t pack_mapped; #define SZ_FMT PRIuMAX static inline uintmax_t sz_fmt(size_t s) { return s; } -void pack_report(void) +void pack_report(struct repository *repo) { fprintf(stderr, "pack_report: getpagesize() = %10" SZ_FMT "\n" "pack_report: core.packedGitWindowSize = %10" SZ_FMT "\n" "pack_report: core.packedGitLimit = %10" SZ_FMT "\n", sz_fmt(getpagesize()), - sz_fmt(packed_git_window_size), - sz_fmt(packed_git_limit)); + sz_fmt(repo->settings.packed_git_window_size), + sz_fmt(repo->settings.packed_git_limit)); fprintf(stderr, "pack_report: pack_used_ctr = %10u\n" "pack_report: pack_mmap_calls = %10u\n" @@ -650,8 +649,15 @@ unsigned char *use_pack(struct packed_git *p, break; } if (!win) { - size_t window_align = packed_git_window_size / 2; + size_t window_align; off_t len; + struct repo_settings *settings; + + /* lazy load the settings in case it hasn't been setup */ + prepare_repo_settings(p->repo); + settings = &p->repo->settings; + + window_align = settings->packed_git_window_size / 2; if (p->pack_fd == -1 && open_packed_git(p)) die("packfile %s cannot be accessed", p->pack_name); @@ -659,11 +665,12 @@ unsigned char *use_pack(struct packed_git *p, CALLOC_ARRAY(win, 1); win->offset = (offset / window_align) * window_align; len = p->pack_size - win->offset; - if (len > packed_git_window_size) - len = packed_git_window_size; + if (len > settings->packed_git_window_size) + len = settings->packed_git_window_size; win->len = (size_t)len; pack_mapped += win->len; - while (packed_git_limit < pack_mapped + + while (settings->packed_git_limit < pack_mapped && unuse_one_window(p)) ; /* nothing */ win->base = xmmap_gently(NULL, win->len, diff --git a/packfile.h b/packfile.h index addb95b0c4..58104fa009 100644 --- a/packfile.h +++ b/packfile.h @@ -89,7 +89,7 @@ unsigned long repo_approximate_object_count(struct repository *r); struct packed_git *find_oid_pack(const struct object_id *oid, struct packed_git *packs); -void pack_report(void); +void pack_report(struct repository *repo); /* * mmap the index file for the specified packfile (if it is not diff --git a/repo-settings.c b/repo-settings.c index acc27eb8fe..9d16d5399e 100644 --- a/repo-settings.c +++ b/repo-settings.c @@ -128,6 +128,19 @@ void prepare_repo_settings(struct repository *r) if (!repo_config_get_ulong(r, "core.deltabasecachelimit", &ulongval)) r->settings.delta_base_cache_limit = ulongval; + + if (!repo_config_get_ulong(r, "core.packedgitwindowsize", &ulongval)) { + int pgsz_x2 = getpagesize() * 2; + + /* This value must be multiple of (pagesize * 2) */ + ulongval /= pgsz_x2; + if (ulongval < 1) + ulongval = 1; + r->settings.packed_git_window_size = ulongval * pgsz_x2; + } + + if (!repo_config_get_ulong(r, "core.packedgitlimit", &ulongval)) + r->settings.packed_git_limit = ulongval; } enum log_refs_config repo_settings_get_log_all_ref_updates(struct repository *repo) diff --git a/repo-settings.h b/repo-settings.h index 10a6f7ed64..93ea0c3274 100644 --- a/repo-settings.h +++ b/repo-settings.h @@ -59,6 +59,8 @@ struct repo_settings { int warn_ambiguous_refs; /* lazily loaded via accessor */ size_t delta_base_cache_limit; + size_t packed_git_window_size; + size_t packed_git_limit; }; #define REPO_SETTINGS_INIT { \ .index_version = -1, \ @@ -66,6 +68,8 @@ struct repo_settings { .fetch_negotiation_algorithm = FETCH_NEGOTIATION_CONSECUTIVE, \ .warn_ambiguous_refs = -1, \ .delta_base_cache_limit = DEFAULT_DELTA_BASE_CACHE_LIMIT, \ + .packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE, \ + .packed_git_limit = DEFAULT_PACKED_GIT_LIMIT, \ } void prepare_repo_settings(struct repository *r);
-- 2.47.0