[LEDE-DEV] [PATCH]fstools: added f2fs to block-mount

[Alberto Bursi]

added the code to recognize the filesystem checker of f2fs
added f2fs to the filesystem whitelist of block so it can mount it on 
/overlay at boot.

I've looked at fstools, adding proper xfs support to fstools is a bit 
more involved and will take some time (to me anyway), I need f2fs 
support to land sooner than that.

Signed-off-by: Alberto Bursi <alberto.bursi at outlook.it>

-----

--- /fstools/block.c	2016-10-15 19:15:31.916714011 +0200
+++ /fstools/block.c	2016-10-18 11:05:12.861778070 +0200
@@ -702,6 +702,7 @@ static void check_filesystem(struct blki
  {
  	pid_t pid;
  	struct stat statbuf;
+    	const char *f2fsck = "/usr/sbin/fsck.f2fs";
  	const char *e2fsck = "/usr/sbin/e2fsck";
  	const char *dosfsck = "/usr/sbin/dosfsck";
  	const char *ckfs;
@@ -712,6 +713,8 @@ static void check_filesystem(struct blki

  	if (!strncmp(pr->id->name, "vfat", 4)) {
  		ckfs = dosfsck;
+    	} else if (!strncmp(pr->id->name, "f2fs", 4)) {
+        	ckfs = f2fsck;
  	} else if (!strncmp(pr->id->name, "ext", 3)) {
  		ckfs = e2fsck;
  	} else {
@@ -1170,8 +1173,9 @@ static int mount_extroot(char *cfg)
  	}
  	if (pr) {
  		if (strncmp(pr->id->name, "ext", 3) &&
-		    strncmp(pr->id->name, "ubifs", 5)) {
-			ULOG_ERR("extroot: unsupported filesystem %s, try ext4\n", 
pr->id->name);
+		    strncmp(pr->id->name, "f2fs", 4) &&
+            	    strncmp(pr->id->name, "ubifs", 5)) {
+            		ULOG_ERR("extroot: unsupported filesystem %s, try ext4, 
f2fs or ubifs\n", pr->id->name);
  			return -1;
  		}