From 3bb59ad515527fa75cf71d997d17cea18160da74 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Tue, 10 Jul 2012 20:30:10 -0500 Subject: [PATCH] rbd: define some new format constants Define constant symbols related to the rbd format 2 object names. This begins to bring this version of the "rbd_types.h" header more in line with the current user-space version of that file. Complete reconciliation of differences will be done at some point later, as a separate task. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- drivers/block/rbd_types.h | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/block/rbd_types.h b/drivers/block/rbd_types.h index d9d8a77..cbe77fa 100644 --- a/drivers/block/rbd_types.h +++ b/drivers/block/rbd_types.h @@ -15,15 +15,30 @@ #include +/* For format version 2, rbd image 'foo' consists of objects + * rbd_id.foo - id of image + * rbd_header. - image metadata + * rbd_data..0000000000000000 + * rbd_data..0000000000000001 + * ... - data + * Clients do not access header data directly in rbd format 2. + */ + +#define RBD_HEADER_PREFIX "rbd_header." +#define RBD_DATA_PREFIX "rbd_data." +#define RBD_ID_PREFIX "rbd_id." + /* - * rbd image 'foo' consists of objects - * foo.rbd - image metadata - * foo.00000000 - * foo.00000001 - * ... - data + * For format version 1, rbd image 'foo' consists of objects + * foo.rbd - image metadata + * rb...00000000 + * rb...00000001 + * ... - data + * There is no notion of a persistent image id in rbd format 1. */ #define RBD_SUFFIX ".rbd" + #define RBD_DIRECTORY "rbd_directory" #define RBD_INFO "rbd_info" -- 2.7.4