[1/3] cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set

Commit Message

Suresh Jayaraman Nov. 24, 2010, 12:19 p.m. UTC

None

Patch

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 251a17c..32fa4d9 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1352,6 +1352,11 @@  cifs_parse_mount_options(char *options, const char *devname,
 				"supported. Instead set "
 				"/proc/fs/cifs/LookupCacheEnabled to 0\n");
 		} else if (strnicmp(data, "fsc", 3) == 0) {
+#ifndef CONFIG_CIFS_FSCACHE
+			cERROR(1, "FS-Cache support needs CONFIG_CIFS_FSCACHE"
+				  "kernel config option set");
+			return 1;
+#endif
 			vol->fsc = true;
 		} else if (strnicmp(data, "mfsymlinks", 10) == 0) {
 			vol->mfsymlinks = true;