From e93b0a257cb9c8fd76ae9e8470484852ff88908e Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@cloudius-systems.com>
Date: Tue, 20 Aug 2013 16:21:21 +0300
Subject: [PATCH] vfs: implement umask()
Currently the umask is ignore (it's pointless since we have no users).
Needed by JRuby.
---
fs/vfs/main.cc | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/vfs/main.cc b/fs/vfs/main.cc
index 7ade70ddb..a1abda65a 100755
--- a/fs/vfs/main.cc
+++ b/fs/vfs/main.cc
@@ -60,6 +60,8 @@
int vfs_debug = VFSDB_FLAGS;
#endif
+std::atomic<mode_t> global_umask{S_IWGRP | S_IWOTH};
+
TRACEPOINT(trace_vfs_open, "\"%s\" 0x%x 0%0o", const char*, int, mode_t);
TRACEPOINT(trace_vfs_open_ret, "%d", int);
TRACEPOINT(trace_vfs_open_err, "%d", int);
@@ -1307,6 +1309,11 @@ int chmod(const char *pathname, mode_t mode)
return 0;
}
+mode_t umask(mode_t newmask)
+{
+ return global_umask.exchange(newmask, std::memory_order_relaxed);
+}
+
int
fs_noop(void)
{
--
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