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Btrfs: Add support for labels in the super block

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Chris Mason
2008-04-18 10:29:49 -04:00
parent a443755f1c
commit 7ae9c09d8f
2 changed files with 11 additions and 8 deletions
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fs/btrfs/ctree.h
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@ -247,6 +247,7 @@ struct btrfs_header {
* room to translate 14 chunks with 3 stripes each.
*/
#define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048
#define BTRFS_LABEL_SIZE 256
/*
* the super block basically lists the main trees of the FS
@ -276,6 +277,7 @@ struct btrfs_super_block {
u8 root_level;
u8 chunk_root_level;
struct btrfs_dev_item dev_item;
char label[BTRFS_LABEL_SIZE];
u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
} __attribute__ ((__packed__));