From 607a569da4cf289fd8eb3887080ed3b212e3112d Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Wed, 24 Nov 2010 17:49:05 +0530 Subject: cifs: allow fsc mount option only if CONFIG_CIFS_FSCACHE is set Currently, it is possible to specify 'fsc' mount option even if CONFIG_CIFS_FSCACHE has not been set. The option is being ignored silently while the user fscache functionality to work. Fix this by raising error when the CONFIG option is not set. Reported-by: Jeff Layton Reviewed-by: Jeff Layton Signed-off-by: Suresh Jayaraman Signed-off-by: Steve French --- fs/cifs/connect.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 251a17c03545..32fa4d9b5dbc 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; -- cgit v1.2.3