diff options
| -rw-r--r-- | sha1_file.c | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/sha1_file.c b/sha1_file.c index 346696934..8e14a5a88 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -450,24 +450,39 @@ static int check_packed_git_idx(const char *path, unsigned long *idx_size_, return 0; } -static int unuse_one_packed_git(void) +static int unuse_one_window(void) { - struct packed_git *p, *lru = NULL; + struct packed_git *p, *lru_p = NULL; + struct pack_window *w, *w_l, *lru_w = NULL, *lru_l = NULL; for (p = packed_git; p; p = p->next) { - if (!p->windows || p->windows->inuse_cnt) - continue; - if (!lru || p->windows->last_used < lru->windows->last_used) - lru = p; + for (w_l = NULL, w = p->windows; w; w = w->next) { + if (!w->inuse_cnt) { + if (!lru_w || w->last_used < lru_w->last_used) { + lru_p = p; + lru_w = w; + lru_l = w_l; + } + } + w_l = w; + } } - if (!lru) - return 0; - munmap(lru->windows->base, lru->windows->len); - free(lru->windows); - lru->windows = NULL; - close(p->pack_fd); - p->pack_fd = -1; - return 1; + if (lru_p) { + munmap(lru_w->base, lru_w->len); + pack_mapped -= lru_w->len; + if (lru_l) + lru_l->next = lru_w->next; + else { + lru_p->windows = lru_w->next; + if (!lru_p->windows) { + close(lru_p->pack_fd); + lru_p->pack_fd = -1; + } + } + free(lru_w); + return 1; + } + return 0; } void unuse_pack(struct pack_window **w_cursor) @@ -532,7 +547,7 @@ unsigned char* use_pack(struct packed_git *p, open_packed_git(p); if (!win) { pack_mapped += p->pack_size; - while (packed_git_limit < pack_mapped && unuse_one_packed_git()) + while (packed_git_limit < pack_mapped && unuse_one_window()) ; /* nothing */ win = xcalloc(1, sizeof(*win)); win->len = p->pack_size; |