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-rw-r--r--open_issues/git_nfs_mmap.mdwn4
1 files changed, 3 insertions, 1 deletions
diff --git a/open_issues/git_nfs_mmap.mdwn b/open_issues/git_nfs_mmap.mdwn
index 21067022..e6726dfa 100644
--- a/open_issues/git_nfs_mmap.mdwn
+++ b/open_issues/git_nfs_mmap.mdwn
@@ -50,4 +50,6 @@ fails, and it isn't prepared to cope with that:
This is the [[libnetfs: `io_map`|open_issues/libnetfs_io_map]] issue.
There is a `NO_MMAP` conditional in Git's source code, but it is a compile-time
-conditional.
+conditional. The fallback code in `compat/mmap.c:git_mmap` only supports
+`MAP_PRIVATE`, and simply `pread`s in the requested portion of a file. This
+could be made a runtime fallback, too.