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Pass an unit number to bcache_strategy, so it can flush the cache when

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necessary. Pass an absolute block number too, instead of receiving a
relative one in realstrategy(), as bcache_strategy() requires this.

The fix is sligthly different from the one in the PR.

PR:		17098
Submitted by:	John Hood <jhood@sitaranetworks.com>
This commit is contained in:
Daniel C. Sobral 2000-03-15 01:58:45 +00:00
parent a5686d2f66
commit 7b12e51659
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=58081
1 changed files with 55 additions and 7 deletions
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62
sys/boot/i386/libi386/biosdisk.c
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@ -239,6 +239,53 @@ bd_print(int verbose)
} else {
for (j = 0; j < NDOSPART; j++) {
switch(dptr[j].dp_typ) {
,{0x01, "Primary DOS with 12 bit FAT"}
,{0x02, "XENIX / filesystem"}
,{0x03, "XENIX /usr filesystem"}
,{0x04, "Primary DOS with 16 bit FAT (<= 32MB)"}
,{0x05, "Extended DOS"}
,{0x06, "Primary 'big' DOS (> 32MB)"}
,{0x07, "OS/2 HPFS, NTFS, QNX or Advanced UNIX"}
,{0x08, "AIX filesystem"}
,{0x09, "AIX boot partition or Coherent"}
,{0x0A, "OS/2 Boot Manager or OPUS"}
,{0x0B, "DOS or Windows 95 with 32 bit FAT"}
,{0x0C, "DOS or Windows 95 with 32 bit FAT, LBA"}
,{0x0E, "Primary 'big' DOS (> 32MB, LBA)"}
,{0x0F, "Extended DOS, LBA"}
,{0x10, "OPUS"}
,{0x40, "VENIX 286"}
,{0x50, "DM"}
,{0x51, "DM"}
,{0x52, "CP/M or Microport SysV/AT"}
,{0x56, "GB"}
,{0x61, "Speed"}
,{0x63, "ISC UNIX, other System V/386, GNU HURD or Mach"}
,{0x64, "Novell Netware 2.xx"}
,{0x65, "Novell Netware 3.xx"}
,{0x75, "PCIX"}
,{0x80, "Minix 1.1 ... 1.4a"}
,{0x81, "Minix 1.4b ... 1.5.10"}
,{0x82, "Linux swap or Solaris x86"}
,{0x83, "Linux filesystem"}
,{0x93, "Amoeba filesystem"}
,{0x94, "Amoeba bad block table"}
,{0x9F, "BSD/OS"}
,{0xA5, "FreeBSD/NetBSD/386BSD"}
,{0xA6, "OpenBSD"}
,{0xA7, "NEXTSTEP"}
,{0xA9, "NetBSD"}
,{0xB7, "BSDI BSD/386 filesystem"}
,{0xB8, "BSDI BSD/386 swap"}
,{0xDB, "Concurrent CPM or C.DOS or CTOS"}
,{0xE1, "Speed"}
,{0xE3, "Speed"}
,{0xE4, "Speed"}
,{0xF1, "Speed"}
,{0xF2, "DOS 3.3+ Secondary"}
,{0xF4, "Speed"}
,{0xFF, "BBT (Bad Blocks Table)"}
};
case DOSPTYP_386BSD:
sprintf(line, " disk%ds%d", i, j + 1);
bd_printslice(od, dptr[j].dp_start, line);
@ -570,10 +617,11 @@ static int
bd_strategy(void *devdata, int rw, daddr_t dblk, size_t size, void *buf, size_t *rsize)
{
struct bcache_devdata bcd;
struct open_disk *od = (struct open_disk *)(((struct i386_devdesc *)devdata)->d_kind.biosdisk.data);
bcd.dv_strategy = bd_realstrategy;
bcd.dv_devdata = devdata;
return(bcache_strategy(&bcd, rw, dblk, size, buf, rsize));
return(bcache_strategy(&bcd, od->od_unit, rw, dblk+od->od_boff, size, buf, rsize));
}
static int
@ -598,18 +646,18 @@ bd_realstrategy(void *devdata, int rw, daddr_t dblk, size_t size, void *buf, siz
blks = size / BIOSDISK_SECSIZE;
DEBUG("read %d from %d+%d to %p", blks, od->od_boff, dblk, buf);
DEBUG("read %d from %d to %p", blks, dblk, buf);
if (rsize)
*rsize = 0;
if (blks && bd_read(od, dblk + od->od_boff, blks, buf)) {
if (blks && bd_read(od, dblk, blks, buf)) {
DEBUG("read error");
return (EIO);
}
#ifdef BD_SUPPORT_FRAGS
DEBUG("bd_strategy: frag read %d from %d+%d+d to %p",
fragsize, od->od_boff, dblk, blks, buf + (blks * BIOSDISK_SECSIZE));
if (fragsize && bd_read(od, dblk + od->od_boff + blks, 1, fragsize)) {
DEBUG("bd_strategy: frag read %d from %d+%d to %p",
fragsize, dblk, blks, buf + (blks * BIOSDISK_SECSIZE));
if (fragsize && bd_read(od, dblk + blks, 1, fragsize)) {
DEBUG("frag read error");
return(EIO);
}