small utility to sync one filesystem instead of all (for linux)

1 files changed, 28 insertions, 0 deletions

diff --git a/syncfs.c b/syncfs.c
new file mode 100644
index 0000000..e45e875
--- /dev/null
+++ b/syncfs.c
@@ -0,0 +1,28 @@
+#define _GNU_SOURCE
+
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
+int main(int argc, char** argv)
+{
+	if(argc != 2)
+	{
+		printf("usage:\n\t%s <some valid path insied filesystem>\n", argv[0]);
+		return -1;
+	}
+	FILE *f = fopen(argv[1], "r");
+	if(!f)
+	{
+		printf("fopen failed %s\n", strerror(errno));
+		return -1;
+	}
+	int fd = fileno(f);
+	int err = syncfs(fd);
+	if(err < 0)
+	{
+		printf("syncfs failed %s\n", strerror(errno));
+	}
+        return 0;
+}