From ee70efcd097330109b7406c3f2a312544bf260c9 Mon Sep 17 00:00:00 2001
From: YuQing <384681@qq.com>
Date: Sun, 11 Dec 2022 12:43:24 +0800
Subject: [PATCH] fc_fallocate fail back to ftruncate under Linux

---
 src/common_define.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/common_define.h b/src/common_define.h
index 81892db..5e92ed0 100644
--- a/src/common_define.h
+++ b/src/common_define.h
@@ -485,7 +485,18 @@ static inline int fc_compare_int64(const int64_t n1, const int64_t n2)
 }
 
 #ifdef OS_LINUX
-#define fc_fallocate(fd, size)  fallocate(fd, 0, 0, size)
+static inline int fc_fallocate(int fd, const int64_t size)
+{
+    if (fallocate(fd, 0, 0, size) < 0) {
+        if (errno == EOPNOTSUPP) {
+            return ftruncate(fd, size);
+        }
+        return -1;
+    }
+
+    return 0;
+}
+
 #else
 #define fc_fallocate(fd, size)  ftruncate(fd, size)
 #define posix_fadvise(fd, offset, len, advice)  0