new copyright notice

[unix-history] / usr / src / sys / ufs / ffs / ufs_disksubr.c

diff --git a/usr/src/sys/ufs/ffs/ufs_disksubr.c b/usr/src/sys/ufs/ffs/ufs_disksubr.c
index faaf9ad..fb22543 100644 (file)
--- a/usr/src/sys/ufs/ffs/ufs_disksubr.c
+++ b/usr/src/sys/ufs/ffs/ufs_disksubr.c
@@ -1,17 +1,17 @@
 /*
 /*

- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+ * Copyright (c) 1982, 1986, 1988 Regents of the University of California.
+ * All rights reserved.

  *
  *

- *     @(#)ufs_disksubr.c      7.7 (Berkeley) %G%
+ * %sccs.include.redist.c%
+ *
+ *     @(#)ufs_disksubr.c      7.14 (Berkeley) %G%

  */
 
 #include "param.h"
 #include "systm.h"
 #include "buf.h"
 #include "disklabel.h"
  */
 
 #include "param.h"
 #include "systm.h"
 #include "buf.h"
 #include "disklabel.h"

-
-#include "dir.h"
+#include "syslog.h"

 #include "user.h"
 
 /*
 #include "user.h"
 
 /*


@@ -148,9 +148,7 @@ readdisklabel(dev, strat, lp)
        bp->b_flags = B_BUSY | B_READ;
        bp->b_cylin = LABELSECTOR / lp->d_secpercyl;
        (*strat)(bp);
        bp->b_flags = B_BUSY | B_READ;
        bp->b_cylin = LABELSECTOR / lp->d_secpercyl;
        (*strat)(bp);

-       biowait(bp);
-       if (bp->b_flags & B_ERROR) {
-               u.u_error = 0;          /* XXX */
+       if (biowait(bp)) {

                msg = "I/O error";
        } else for (dlp = (struct disklabel *)bp->b_un.b_addr;
            dlp <= (struct disklabel *)(bp->b_un.b_addr+DEV_BSIZE-sizeof(*dlp));
                msg = "I/O error";
        } else for (dlp = (struct disklabel *)bp->b_un.b_addr;
            dlp <= (struct disklabel *)(bp->b_un.b_addr+DEV_BSIZE-sizeof(*dlp));


@@ -158,7 +156,8 @@ readdisklabel(dev, strat, lp)
                if (dlp->d_magic != DISKMAGIC || dlp->d_magic2 != DISKMAGIC) {
                        if (msg == NULL)
                                msg = "no disk label";
                if (dlp->d_magic != DISKMAGIC || dlp->d_magic2 != DISKMAGIC) {
                        if (msg == NULL)
                                msg = "no disk label";

-               } else if (dkcksum(dlp) != 0)
+               } else if (dlp->d_npartitions > MAXPARTITIONS ||
+                          dkcksum(dlp) != 0)

                        msg = "disk label corrupted";
                else {
                        *lp = *dlp;
                        msg = "disk label corrupted";
                else {
                        *lp = *dlp;


@@ -166,8 +165,6 @@ readdisklabel(dev, strat, lp)
                        break;
                }
        }
                        break;
                }
        }

-       if (lp->d_npartitions > MAXPARTITIONS)
-               lp->d_npartitions = MAXPARTITIONS;

        bp->b_flags = B_INVAL | B_AGE;
        brelse(bp);
        return (msg);
        bp->b_flags = B_INVAL | B_AGE;
        brelse(bp);
        return (msg);


@@ -243,12 +240,8 @@ writedisklabel(dev, strat, lp)
        bp->b_bcount = lp->d_secsize;
        bp->b_flags = B_READ;
        (*strat)(bp);
        bp->b_bcount = lp->d_secsize;
        bp->b_flags = B_READ;
        (*strat)(bp);

-       biowait(bp);
-       if (bp->b_flags & B_ERROR) {
-               error = u.u_error;              /* XXX */
-               u.u_error = 0;
+       if (error = biowait(bp))

                goto done;
                goto done;

-       }

        for (dlp = (struct disklabel *)bp->b_un.b_addr;
            dlp <= (struct disklabel *)
              (bp->b_un.b_addr + lp->d_secsize - sizeof(*dlp));
        for (dlp = (struct disklabel *)bp->b_un.b_addr;
            dlp <= (struct disklabel *)
              (bp->b_un.b_addr + lp->d_secsize - sizeof(*dlp));


@@ -258,11 +251,7 @@ writedisklabel(dev, strat, lp)
                        *dlp = *lp;
                        bp->b_flags = B_WRITE;
                        (*strat)(bp);
                        *dlp = *lp;
                        bp->b_flags = B_WRITE;
                        (*strat)(bp);

-                       biowait(bp);
-                       if (bp->b_flags & B_ERROR) {
-                               error = u.u_error;              /* XXX */
-                               u.u_error = 0;
-                       }
+                       error = biowait(bp);

                        goto done;
                }
        }
                        goto done;
                }
        }


@@ -287,3 +276,58 @@ dkcksum(lp)
                sum ^= *start++;
        return (sum);
 }
                sum ^= *start++;
        return (sum);
 }

+
+/*
+ * Disk error is the preface to plaintive error messages
+ * about failing disk transfers.  It prints messages of the form
+
+hp0g: hard error reading fsbn 12345 of 12344-12347 (hp0 bn %d cn %d tn %d sn %d)
+
+ * if the offset of the error in the transfer and a disk label
+ * are both available.  blkdone should be -1 if the position of the error
+ * is unknown; the disklabel pointer may be null from drivers that have not
+ * been converted to use them.  The message is printed with printf
+ * if pri is LOG_PRINTF, otherwise it uses log at the specified priority.
+ * The message should be completed (with at least a newline) with printf
+ * or addlog, respectively.  There is no trailing space.
+ */
+diskerr(bp, dname, what, pri, blkdone, lp)
+       register struct buf *bp;
+       char *dname, *what;
+       int pri, blkdone;
+       register struct disklabel *lp;
+{
+       int unit = dkunit(bp->b_dev), part = dkpart(bp->b_dev);
+       register int (*pr)(), sn;
+       char partname = 'a' + part;
+       extern printf(), addlog();
+
+       if (pri != LOG_PRINTF) {
+               log(pri, "");
+               pr = addlog;
+       } else
+               pr = printf;
+       (*pr)("%s%d%c: %s %sing fsbn ", dname, unit, partname, what,
+           bp->b_flags & B_READ ? "read" : "writ");
+       sn = bp->b_blkno;
+       if (bp->b_bcount <= DEV_BSIZE)
+               (*pr)("%d", sn);
+       else {
+               if (blkdone >= 0) {
+                       sn += blkdone;
+                       (*pr)("%d of ", sn);
+               }
+               (*pr)("%d-%d", bp->b_blkno,
+                   bp->b_blkno + (bp->b_bcount - 1) / DEV_BSIZE);
+       }
+       if (lp && (blkdone >= 0 || bp->b_bcount <= lp->d_secsize)) {
+#ifdef tahoe
+               sn *= DEV_BSIZE / lp->d_secsize;                /* XXX */
+#endif
+               sn += lp->d_partitions[part].p_offset;
+               (*pr)(" (%s%d bn %d; cn %d", dname, unit, sn,
+                   sn / lp->d_secpercyl);
+               sn %= lp->d_secpercyl;
+               (*pr)(" tn %d sn %d)", sn / lp->d_nsectors, sn % lp->d_nsectors);
+       }
+}