diff options
author | Derrick Stolee <dstolee@microsoft.com> | 2018-10-12 10:34:19 -0700 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2018-10-22 10:42:46 +0900 |
commit | 1dcd9f2043a38f0c9684d47c71b9e383942660ac (patch) | |
tree | ccc137d372ff6f1d4a6285f7448ac7f5e465eba3 | |
parent | midx: fix broken free() in close_midx() (diff) | |
download | tgif-1dcd9f2043a38f0c9684d47c71b9e383942660ac.tar.xz |
midx: close multi-pack-index on repack
When repacking, we may remove pack-files. This invalidates the
multi-pack-index (if it exists). Previously, we removed the
multi-pack-index file before removing any pack-file. In some cases,
the repack command may load the multi-pack-index into memory. This
may lead to later in-memory references to the non-existent pack-
files.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r-- | builtin/repack.c | 3 | ||||
-rw-r--r-- | midx.c | 15 | ||||
-rw-r--r-- | midx.h | 4 |
3 files changed, 16 insertions, 6 deletions
diff --git a/builtin/repack.c b/builtin/repack.c index c6a7943d5c..44965cbaa3 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -431,8 +431,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) char *fname, *fname_old; if (!midx_cleared) { - /* if we move a packfile, it will invalidated the midx */ - clear_midx_file(get_object_directory()); + clear_midx_file(the_repository); midx_cleared = 1; } @@ -180,9 +180,13 @@ cleanup_fail: return NULL; } -static void close_midx(struct multi_pack_index *m) +void close_midx(struct multi_pack_index *m) { uint32_t i; + + if (!m) + return; + munmap((unsigned char *)m->data, m->data_len); close(m->fd); m->fd = -1; @@ -917,9 +921,14 @@ cleanup: return 0; } -void clear_midx_file(const char *object_dir) +void clear_midx_file(struct repository *r) { - char *midx = get_midx_filename(object_dir); + char *midx = get_midx_filename(r->objects->objectdir); + + if (r->objects && r->objects->multi_pack_index) { + close_midx(r->objects->multi_pack_index); + r->objects->multi_pack_index = NULL; + } if (remove_path(midx)) { UNLEAK(midx); @@ -42,6 +42,8 @@ int midx_contains_pack(struct multi_pack_index *m, const char *idx_name); int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local); int write_midx_file(const char *object_dir); -void clear_midx_file(const char *object_dir); +void clear_midx_file(struct repository *r); + +void close_midx(struct multi_pack_index *m); #endif |