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-rw-r--r--read-cache.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/read-cache.c b/read-cache.c
index 0e345bdb2..d2aebdd6b 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -464,11 +464,15 @@ int read_cache(void)
errno = EBUSY;
if (active_cache)
- return error("more than one cachefile");
+ return active_nr;
+
errno = ENOENT;
fd = open(get_index_file(), O_RDONLY);
- if (fd < 0)
- return (errno == ENOENT) ? 0 : error("open failed");
+ if (fd < 0) {
+ if (errno == ENOENT)
+ return 0;
+ die("index file open failed (%s)", strerror(errno));
+ }
size = 0; // avoid gcc warning
map = MAP_FAILED;
@@ -480,7 +484,7 @@ int read_cache(void)
}
close(fd);
if (map == MAP_FAILED)
- return error("mmap failed");
+ die("index file mmap failed (%s)", strerror(errno));
hdr = map;
if (verify_hdr(hdr, size) < 0)
@@ -501,7 +505,7 @@ int read_cache(void)
unmap:
munmap(map, size);
errno = EINVAL;
- return error("verify header failed");
+ die("index file corrupt");
}
#define WRITE_BUFFER_SIZE 8192