From: Vicent Marti <>

The `git_open_noatime` helper can be of general interest for other
consumers of git's different on-disk formats.

Signed-off-by: Vicent Marti <>
Signed-off-by: Jeff King <>
 cache.h     | 1 +
 sha1_file.c | 4 +---
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/cache.h b/cache.h
index 5e3fc72..f2e5aa7 100644
--- a/cache.h
+++ b/cache.h
@@ -780,6 +780,7 @@ extern int hash_sha1_file(const void *buf, unsigned long 
len, const char *type,
 extern int write_sha1_file(const void *buf, unsigned long len, const char 
*type, unsigned char *return_sha1);
 extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned 
char *);
 extern int force_object_loose(const unsigned char *sha1, time_t mtime);
+extern int git_open_noatime(const char *name);
 extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
 extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, 
unsigned long mapsize, void *buffer, unsigned long bufsiz);
 extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
diff --git a/sha1_file.c b/sha1_file.c
index f80bbe4..4714bd8 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -239,8 +239,6 @@ char *sha1_pack_index_name(const unsigned char *sha1)
 struct alternate_object_database *alt_odb_list;
 static struct alternate_object_database **alt_odb_tail;
-static int git_open_noatime(const char *name);
  * Prepare alternate object database registry.
@@ -1357,7 +1355,7 @@ int check_sha1_signature(const unsigned char *sha1, void 
        return hashcmp(sha1, real_sha1) ? -1 : 0;
-static int git_open_noatime(const char *name)
+int git_open_noatime(const char *name)
        static int sha1_file_open_flag = O_NOATIME;

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