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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
parentfbeba8bb16d7c50362e28f3f91a79fb414903199 (diff)
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>
-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 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;