From: Jeff Dike The ubd help message didn't document the 'c' flag. Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton --- arch/um/drivers/ubd_kern.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff -puN arch/um/drivers/ubd_kern.c~uml-document-new-ubd-flag arch/um/drivers/ubd_kern.c --- a/arch/um/drivers/ubd_kern.c~uml-document-new-ubd-flag +++ a/arch/um/drivers/ubd_kern.c @@ -437,7 +437,10 @@ __uml_help(ubd_setup, " machine by running 'dd' on the device. must be in the range\n" " 0 to 7. Appending an 'r' to the number will cause that device\n" " to be mounted read-only. For example ubd1r=./ext_fs. Appending\n" -" an 's' will cause data to be written to disk on the host immediately.\n\n" +" an 's' will cause data to be written to disk on the host immediately.\n" +" 'c' will cause the device to be treated as being shared between multiple\n" +" UMLs and file locking will be turned off - this is appropriate for a\n" +" cluster filesystem and inappropriate at almost all other times.\n\n" ); static int udb_setup(char *str) _