tree b772ab680661d3bbedd35cbd48e4f19c5ffad854
parent 5f01520415e82f8e354807484ef842335070a3bd
author Mikulas Patocka <mpatocka@redhat.com> 1362177948 +0000
committer Alasdair G Kergon <agk@redhat.com> 1362177948 +0000

dm ioctl: introduce ioctl_flags

This patch introduces flags for each ioctl function.

So far, one flag is defined, IOCTL_FLAGS_NO_PARAMS.  It is set if the
function processing the ioctl doesn't take or produce any parameters in
the section of the data buffer that has a variable size.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>