in f48000fc ("Yank writing-back support from gitfakemmap.", 2005-10-08)
support for writting back changes was removed but the specific prot
flag that would be used was not checked for)
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@xxxxxxxxx>
---
compat/mmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/compat/mmap.c b/compat/mmap.c
index 7f662fef7b..14d31010df 100644
--- a/compat/mmap.c
+++ b/compat/mmap.c
@@ -4,7 +4,7 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of
{
size_t n = 0;
- if (start != NULL || !(flags & MAP_PRIVATE))
+ if (start != NULL || flags != MAP_PRIVATE || prot != PROT_READ)
die("Invalid usage of mmap when built with NO_MMAP");
start = xmalloc(length);
--
2.19.1
