Messages in this thread Patch in this message | | | Date | Tue, 19 Dec 2006 17:12:49 -0500 (EST) | Subject | [RFC PATCH 4/8] rqbased-dm: add ioctl for request-based device creation | From | Kiyoshi Ueda <> |
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This patch adds DM_REQUEST_BASE_FLAG ioctl for mapped device creation.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
diff -rupN 3-create-iface-change/drivers/md/dm.h 4-add-ioctl/drivers/md/dm.h --- 3-create-iface-change/drivers/md/dm.h 2006-12-11 14:32:53.000000000 -0500 +++ 4-add-ioctl/drivers/md/dm.h 2006-12-15 10:26:43.000000000 -0500 @@ -33,6 +33,11 @@ #define SECTOR_SHIFT 9 /* + * Create feature flags + */ +#define DM_CREATE_REQUEST_BASE_FLAG (1 << 0) + +/* * List of devices that a metadevice uses and should open/close. */ struct dm_dev { diff -rupN 3-create-iface-change/drivers/md/dm-ioctl.c 4-add-ioctl/drivers/md/dm-ioctl.c --- 3-create-iface-change/drivers/md/dm-ioctl.c 2006-12-15 10:24:52.000000000 -0500 +++ 4-add-ioctl/drivers/md/dm-ioctl.c 2006-12-15 10:26:43.000000000 -0500 @@ -573,6 +573,8 @@ static int dev_create(struct dm_ioctl *p if (param->flags & DM_PERSISTENT_DEV_FLAG) m = MINOR(huge_decode_dev(param->dev)); + if (param->flags & DM_REQUEST_BASE_FLAG) + create_flags |= DM_CREATE_REQUEST_BASE_FLAG; r = dm_create(m, &md, create_flags); if (r) diff -rupN 3-create-iface-change/include/linux/dm-ioctl.h 4-add-ioctl/include/linux/dm-ioctl.h --- 3-create-iface-change/include/linux/dm-ioctl.h 2006-12-11 14:32:53.000000000 -0500 +++ 4-add-ioctl/include/linux/dm-ioctl.h 2006-12-15 10:27:35.000000000 -0500 @@ -285,7 +285,7 @@ typedef char ioctl_struct[308]; #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 10 +#define DM_VERSION_MINOR 11 #define DM_VERSION_PATCHLEVEL 0 #define DM_VERSION_EXTRA "-ioctl (2006-09-14)" @@ -323,4 +323,9 @@ typedef char ioctl_struct[308]; */ #define DM_SKIP_LOCKFS_FLAG (1 << 10) /* In */ +/* + * Set this to create request based device-mapper device. + */ +#define DM_REQUEST_BASE_FLAG (1 << 11) /* In */ + #endif /* _LINUX_DM_IOCTL_H */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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