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Eliminate the embedded struct bio in struct buf.

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Saves approx 100-170 bytes per buf depending on architecture.
This commit is contained in:
Poul-Henning Kamp 2004-11-04 09:37:50 +00:00
parent ecc14aae12
commit b5a00bdb60
1 changed files with 9 additions and 10 deletions
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19
sys/sys/buf.h
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@ -94,17 +94,16 @@ typedef unsigned char b_xflags_t;
* D - Protected by an dependency implementation specific lock
*/
struct buf {
struct bio b_io; /* "Builtin" I/O request. */
#define b_bcount b_io.bio_bcount
#define b_caller1 b_io.bio_caller1
#define b_data b_io.bio_data
#define b_error b_io.bio_error
#define b_iocmd b_io.bio_cmd
#define b_ioflags b_io.bio_flags
#define b_iooffset b_io.bio_offset
#define b_resid b_io.bio_resid
struct bufobj *b_bufobj;
unsigned b_magic;
long b_bcount;
void *b_caller1;
caddr_t b_data;
int b_error;
uint8_t b_iocmd;
uint8_t b_ioflags;
off_t b_iooffset;
long b_resid;
unsigned b_magic;
#define B_MAGIC_BIO 0x10b10b10
#define B_MAGIC_NFS 0x67238234
void (*b_iodone)(struct buf *);