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Add xferinfo flag bit for copied buffers.

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Create a new struct rangelockinfo.  In revision 1.21 of vinumlock.c,
the plex info was removed from struct rangelock, since it wasn't
needed there.  It *is* needed for trace information, however, so use
struct rangelockinfo for that.
This commit is contained in:
grog 2001-05-22 02:28:55 +00:00
parent 335e7f48ab
commit 37b41ff62d
1 changed files with 16 additions and 2 deletions
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18
sys/dev/vinum/request.h
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@ -33,7 +33,7 @@
* otherwise) arising in any way out of the use of this software, even if
* advised of the possibility of such damage.
*
* $Id: request.h,v 1.18 2000/05/07 04:05:33 grog Exp grog $
* $Id: request.h,v 1.19 2000/11/24 03:41:51 grog Exp grog $
* $FreeBSD$
*/
@ -55,6 +55,7 @@ enum xferinfo {
#endif
XFR_REVIVECONFLICT = 0x1000, /* possible conflict with a revive operation */
XFR_BUFLOCKED = 0x2000, /* BUF_LOCK performed on this buffer */
XFR_COPYBUF = 0x4000, /* data buffer was copied */
/* operations that need a parity block */
XFR_PARITYOP = (XFR_NORMAL_WRITE | XFR_RECOVERY_READ | XFR_DEGRADED_WRITE),
/* operations that use the group parameters */
@ -129,6 +130,7 @@ struct rqgroup {
*/
struct request {
struct buf *bp; /* pointer to the high-level request */
caddr_t save_data; /* for copied write buffers */
enum xferinfo flags;
union {
int volno; /* volume index */
@ -187,10 +189,22 @@ enum rqinfo_type {
loginfo_unlock, /* unlock range */
};
/*
* This is the rangelock structure with an added
* buffer pointer and plex number. We don't need
* the plex number for the locking protocol, but
* it does help a lot when logging.
*/
struct rangelockinfo {
daddr_t stripe; /* address + 1 of the range being locked */
struct buf *bp; /* user's buffer pointer */
int plexno;
};
union rqinfou { /* info to pass to logrq */
struct buf *bp;
struct rqelement *rqe; /* address of request, for correlation */
struct rangelock *lockinfo;
struct rangelockinfo *lockinfo;
};
struct rqinfo {