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Augment struct bio for GEOM.

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This commit is contained in:
phk 2002-03-11 08:20:22 +00:00
parent 9347f8152d
commit eccfe65325
1 changed files with 14 additions and 4 deletions
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18
sys/sys/bio.h
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@ -46,6 +46,8 @@
struct bio;
struct buf;
struct g_consumer;
struct g_provider;
struct iodone_chain {
long ic_prev_flags;
@ -81,13 +83,21 @@ struct bio {
/* XXX: these go away when bio chaining is introduced */
daddr_t bio_pblkno; /* physical block number */
struct iodone_chain *bio_done_chain;
struct bio *bio_linkage;
off_t bio_length;
char *bio_attribute;
off_t bio_completed;
struct g_consumer *bio_from;
struct g_provider *bio_to;
};
/* bio_cmd */
#define BIO_READ 1
#define BIO_WRITE 2
#define BIO_DELETE 4
#define BIO_FORMAT 8
#define BIO_READ 0x00000001
#define BIO_WRITE 0x00000002
#define BIO_DELETE 0x00000004
#define BIO_FORMAT 0x00000008
#define BIO_GETATTR 0x00000010
#define BIO_SETATTR 0x00000020
#define BIO_CMD1 0x40000000 /* Available for local hacks */
#define BIO_CMD2 0x80000000 /* Available for local hacks */