diff options
Diffstat (limited to 'include/linux/dm-ioctl.h')
| -rw-r--r-- | include/linux/dm-ioctl.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index 48e44ee2b466..49eab360d5d4 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2001 - 2003 Sistina Software (UK) Limited. - * Copyright (C) 2004 - 2005 Red Hat, Inc. All rights reserved. + * Copyright (C) 2004 - 2009 Red Hat, Inc. All rights reserved. * * This file is released under the LGPL. */ @@ -11,6 +11,7 @@ #include <linux/types.h> #define DM_DIR "mapper" /* Slashes not supported */ +#define DM_CONTROL_NODE "control" #define DM_MAX_TYPE_NAME 16 #define DM_NAME_LEN 128 #define DM_UUID_LEN 129 @@ -123,6 +124,16 @@ struct dm_ioctl { __u32 target_count; /* in/out */ __s32 open_count; /* out */ __u32 flags; /* in/out */ + + /* + * event_nr holds either the event number (input and output) or the + * udev cookie value (input only). + * The DM_DEV_WAIT ioctl takes an event number as input. + * The DM_SUSPEND, DM_DEV_REMOVE and DM_DEV_RENAME ioctls + * use the field as a cookie to return in the DM_COOKIE + * variable with the uevents they issue. + * For output, the ioctls return the event number, not the cookie. + */ __u32 event_nr; /* in/out */ __u32 padding; @@ -256,9 +267,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 14 +#define DM_VERSION_MINOR 18 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2008-04-23)" +#define DM_VERSION_EXTRA "-ioctl (2010-06-29)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ @@ -299,4 +310,16 @@ enum { */ #define DM_NOFLUSH_FLAG (1 << 11) /* In */ +/* + * If set, any table information returned will relate to the inactive + * table instead of the live one. Always check DM_INACTIVE_PRESENT_FLAG + * is set before using the data returned. + */ +#define DM_QUERY_INACTIVE_TABLE_FLAG (1 << 12) /* In */ + +/* + * If set, a uevent was generated for which the caller may need to wait. + */ +#define DM_UEVENT_GENERATED_FLAG (1 << 13) /* Out */ + #endif /* _LINUX_DM_IOCTL_H */ |