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authorSuresh Jayaraman <sjayaraman@suse.de>2010-11-24 17:49:05 +0530
committerSteve French <sfrench@us.ibm.com>2010-11-30 05:49:28 +0000
commit607a569da4cf289fd8eb3887080ed3b212e3112d (patch)
tree9e8e54738ebe1c80718ba67d44a7f736ba0af879 /fs
parentfbeba8bb16d7c50362e28f3f91a79fb414903199 (diff)
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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 <jlayton@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/connect.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 251a17c0354..32fa4d9b5db 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;