2307 lines
42 KiB
C
2307 lines
42 KiB
C
/*
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|
* cached-worm device
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|
*/
|
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#include "all.h"
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|
|
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#define CDEV(d) ((d)->cw.c)
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#define WDEV(d) ((d)->cw.w)
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#define RDEV(d) ((d)->cw.ro)
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enum {
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FIRST = SUPER_ADDR,
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ADDFREE = 100,
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CACHE_ADDR = SUPER_ADDR,
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MAXAGE = 10000,
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};
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/* cache state */
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enum
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{
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/* states -- beware these are recorded on the cache */
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/* cache worm */
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Cnone = 0, /* 0 ? */
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Cdirty, /* 1 0 */
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Cdump, /* 1 0->1 */
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Cread, /* 1 1 */
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Cwrite, /* 2 1 */
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Cdump1, /* inactive form of dump */
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Cerror,
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/* opcodes -- these are not recorded */
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Onone,
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Oread,
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Owrite,
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Ogrow,
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Odump,
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Orele,
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Ofree,
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};
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typedef struct Cw Cw;
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struct Cw
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{
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Device* dev;
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Device* cdev;
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Device* wdev;
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Device* rodev;
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Cw* link;
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int dbucket; /* last bucket dumped */
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Off daddr; /* last block dumped */
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Off ncopy;
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int nodump;
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/*
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* following are cached variables for dumps
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*/
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Off fsize;
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Off ndump;
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int depth;
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int all; /* local flag to recur on modified dirs */
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int allflag; /* global flag to recur on modified dirs */
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Off falsehits; /* times recur found modified blocks */
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struct {
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char name[500];
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char namepad[NAMELEN+10];
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};
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};
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static char* cwnames[] =
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{
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[Cnone] "none",
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[Cdirty] "dirty",
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[Cdump] "dump",
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[Cread] "read",
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[Cwrite] "write",
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[Cdump1] "dump1",
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[Cerror] "error",
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[Onone] "none",
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[Oread] "read",
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[Owrite] "write",
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[Ogrow] "grow",
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[Odump] "dump",
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[Orele] "rele",
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};
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Centry* getcentry(Bucket*, Off);
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int cwio(Device*, Off, void*, int);
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void cmd_cwcmd(int, char*[]);
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/*
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* console command
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* initiate a dump
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*/
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void
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cmd_dump(int argc, char *argv[])
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{
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Filsys *fs;
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fs = cons.curfs;
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if(argc > 1)
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fs = fsstr(argv[1]);
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if(fs == 0) {
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print("%s: unknown file system\n", argv[1]);
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return;
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}
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cfsdump(fs);
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}
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/*
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* console command
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* worm stats
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*/
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static void
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cmd_statw(int, char*[])
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{
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Filsys *fs;
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Iobuf *p;
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Superb *sb;
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Cache *h;
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Bucket *b;
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Centry *c, *ce;
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Off m, nw, bw, state[Onone];
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Off sbfsize, sbcwraddr, sbroraddr, sblast, sbnext;
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Off hmsize, hmaddr, dsize, dsizepct;
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Device *dev;
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Cw *cw;
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int s;
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fs = cons.curfs;
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dev = fs->dev;
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if(dev->type != Devcw) {
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print("curfs not type cw\n");
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return;
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}
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cw = dev->private;
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if(cw == 0) {
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print("curfs not inited\n");
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return;
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}
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print("cwstats %s\n", fs->name);
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sbfsize = 0;
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sbcwraddr = 0;
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sbroraddr = 0;
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sblast = 0;
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sbnext = 0;
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print("\tfilesys %s\n", fs->name);
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// print("\tnio =%7W%7W%7W\n", cw->ncwio+0, cw->ncwio+1, cw->ncwio+2);
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p = getbuf(dev, cwsaddr(dev), Brd);
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if(!p || checktag(p, Tsuper, QPSUPER)) {
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print("cwstats: checktag super\n");
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if(p) {
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putbuf(p);
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p = 0;
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}
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}
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if(p) {
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sb = (Superb*)p->iobuf;
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sbfsize = sb->fsize;
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sbcwraddr = sb->cwraddr;
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sbroraddr = sb->roraddr;
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sblast = sb->last;
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sbnext = sb->next;
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putbuf(p);
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}
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p = getbuf(cw->cdev, CACHE_ADDR, Brd|Bres);
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if(!p || checktag(p, Tcache, QPSUPER)) {
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print("cwstats: checktag c bucket\n");
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if(p)
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putbuf(p);
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return;
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}
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h = (Cache*)p->iobuf;
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hmaddr = h->maddr;
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hmsize = h->msize;
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print("\t\tmaddr = %8lld\n", (Wideoff)hmaddr);
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print("\t\tmsize = %8lld\n", (Wideoff)hmsize);
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print("\t\tcaddr = %8lld\n", (Wideoff)h->caddr);
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print("\t\tcsize = %8lld\n", (Wideoff)h->csize);
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print("\t\tsbaddr = %8lld\n", (Wideoff)h->sbaddr);
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print("\t\tcraddr = %8lld %8lld\n",
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(Wideoff)h->cwraddr, (Wideoff)sbcwraddr);
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print("\t\troaddr = %8lld %8lld\n",
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(Wideoff)h->roraddr, (Wideoff)sbroraddr);
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/* print stats in terms of (first-)disc sides */
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dsize = wormsizeside(dev, 0);
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if (dsize < 1) {
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dsize = h->wsize; /* it's probably a fake worm */
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if (dsize < 1)
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dsize = 1000; /* don't divide by zero */
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}
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dsizepct = dsize/100;
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print("\t\tfsize = %8lld %8lld %2lld+%2lld%%\n", (Wideoff)h->fsize,
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(Wideoff)sbfsize, (Wideoff)h->fsize/dsize,
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(Wideoff)(h->fsize%dsize)/dsizepct);
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print("\t\tslast = %8lld\n", (Wideoff)sblast);
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print("\t\tsnext = %8lld\n", (Wideoff)sbnext);
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print("\t\twmax = %8lld %2lld+%2lld%%\n",
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(Wideoff)h->wmax, (Wideoff)h->wmax/dsize,
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(Wideoff)(h->wmax%dsize)/dsizepct);
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print("\t\twsize = %8lld %2lld+%2lld%%\n",
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(Wideoff)h->wsize, (Wideoff)h->wsize/dsize,
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(Wideoff)(h->wsize%dsize)/dsizepct);
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putbuf(p);
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bw = 0; /* max filled bucket */
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memset(state, 0, sizeof(state));
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for(m = 0; m < hmsize; m++) {
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p = getbuf(cw->cdev, hmaddr + m/BKPERBLK, Brd);
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if(!p || checktag(p, Tbuck, hmaddr + m/BKPERBLK)) {
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print("cwstats: checktag c bucket\n");
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if(p)
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putbuf(p);
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return;
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}
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b = (Bucket*)p->iobuf + m%BKPERBLK;
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ce = b->entry + CEPERBK;
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nw = 0;
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for(c = b->entry; c < ce; c++) {
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s = c->state;
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state[s]++;
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if(s != Cnone && s != Cread)
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nw++;
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}
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putbuf(p);
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if(nw > bw)
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bw = nw;
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}
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for(s = Cnone; s < Cerror; s++)
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print("\t\t%6lld %s\n", (Wideoff)state[s], cwnames[s]);
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print("\t\tcache %2lld%% full\n", ((Wideoff)bw*100)/CEPERBK);
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}
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int
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dumpblock(Device *dev)
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{
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Iobuf *p, *cb, *p1, *p2;
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Cache *h;
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Centry *c, *ce, *bc;
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Bucket *b;
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Off m, a, msize, maddr, wmax, caddr;
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int s1, s2, count;
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Cw *cw;
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cw = dev->private;
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if(cw == 0 || cw->nodump)
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return 0;
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cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bres);
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h = (Cache*)cb->iobuf;
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msize = h->msize;
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maddr = h->maddr;
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wmax = h->wmax;
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caddr = h->caddr;
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putbuf(cb);
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for(m=msize; m>=0; m--) {
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a = cw->dbucket + 1;
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if(a < 0 || a >= msize)
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a = 0;
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cw->dbucket = a;
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p = getbuf(cw->cdev, maddr + a/BKPERBLK, Brd);
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b = (Bucket*)p->iobuf + a%BKPERBLK;
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ce = b->entry + CEPERBK;
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bc = 0;
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for(c = b->entry; c < ce; c++)
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if(c->state == Cdump) {
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if(bc == 0) {
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bc = c;
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continue;
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}
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if(c->waddr < cw->daddr) {
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if(bc->waddr < cw->daddr &&
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bc->waddr > c->waddr)
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bc = c;
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continue;
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}
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if(bc->waddr < cw->daddr ||
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bc->waddr > c->waddr)
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bc = c;
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}
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if(bc) {
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c = bc;
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goto found;
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}
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putbuf(p);
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}
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if(cw->ncopy){
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if(chatty)
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print("%lld blocks copied to worm\n", (Wideoff)cw->ncopy);
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cw->ncopy = 0;
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}
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cw->nodump = 1;
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return 0;
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found:
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if (conf.newcache)
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a += (c - b->entry)*msize + caddr;
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else
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a = a*CEPERBK + (c - b->entry) + caddr;
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p1 = getbuf(devnone, Cwdump1, 0);
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count = 0;
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retry:
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count++;
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if(count > 10 || devread(cw->cdev, a, p1->iobuf))
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goto stop;
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m = c->waddr;
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cw->daddr = m;
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s1 = devwrite(cw->wdev, m, p1->iobuf);
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if(s1) {
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p2 = getbuf(devnone, Cwdump2, 0);
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s2 = devread(cw->wdev, m, p2->iobuf);
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if(s2) {
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if(s1 == 0x61 && s2 == 0x60) {
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putbuf(p2);
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goto retry;
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}
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goto stop1;
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}
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if(memcmp(p1->iobuf, p2->iobuf, RBUFSIZE))
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goto stop1;
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putbuf(p2);
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}
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/*
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* reread and compare
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*/
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if(conf.dumpreread) {
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p2 = getbuf(devnone, Cwdump2, 0);
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s1 = devread(cw->wdev, m, p2->iobuf);
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if(s1)
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goto stop1;
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if(memcmp(p1->iobuf, p2->iobuf, RBUFSIZE)) {
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fprint(2, "reread C%lld W%lld didnt compare\n",
|
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(Wideoff)a, (Wideoff)m);
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goto stop1;
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}
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putbuf(p2);
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}
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putbuf(p1);
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c->state = Cread;
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p->flags |= Bmod;
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putbuf(p);
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if(m > wmax) {
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cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bmod|Bres);
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h = (Cache*)cb->iobuf;
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if(m > h->wmax)
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h->wmax = m;
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putbuf(cb);
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}
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cw->ncopy++;
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return 1;
|
|
|
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stop1:
|
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putbuf(p2);
|
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putbuf(p1);
|
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c->state = Cdump1;
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p->flags |= Bmod;
|
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putbuf(p);
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return 1;
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stop:
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putbuf(p1);
|
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putbuf(p);
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print("stopping dump!!\n");
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cw->nodump = 1;
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return 0;
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}
|
|
|
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void
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cwinit1(Device *dev)
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{
|
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Cw *cw;
|
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static int first;
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cw = dev->private;
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if(cw)
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return;
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if(first == 0) {
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cmd_install("dump", "-- make dump backup to worm", cmd_dump);
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cmd_install("statw", "-- cache/worm stats", cmd_statw);
|
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cmd_install("cwcmd", "subcommand -- cache/worm errata", cmd_cwcmd);
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roflag = flag_install("ro", "-- ro reads and writes");
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first = 1;
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}
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cw = malloc(sizeof(Cw));
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dev->private = cw;
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|
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cw->allflag = 0;
|
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|
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cw->dev = dev;
|
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cw->cdev = CDEV(dev);
|
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cw->wdev = WDEV(dev);
|
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cw->rodev = RDEV(dev);
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|
|
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devinit(cw->cdev);
|
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devinit(cw->wdev);
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}
|
|
|
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void
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cwinit(Device *dev)
|
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{
|
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Cw *cw;
|
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Cache *h;
|
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Iobuf *cb, *p;
|
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Off l, m;
|
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|
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cwinit1(dev);
|
|
|
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cw = dev->private;
|
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l = devsize(cw->wdev);
|
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cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bmod|Bres);
|
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h = (Cache*)cb->iobuf;
|
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h->toytime = toytime() + SECOND(30);
|
|
h->time = time(nil);
|
|
m = h->wsize;
|
|
if(l != m) {
|
|
if(chatty)
|
|
print("wdev changed size %lld to %lld\n",
|
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(Wideoff)m, (Wideoff)l);
|
|
h->wsize = l;
|
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cb->flags |= Bmod;
|
|
}
|
|
|
|
for(m=0; m<h->msize; m++) {
|
|
p = getbuf(cw->cdev, h->maddr + m/BKPERBLK, Brd);
|
|
if(!p || checktag(p, Tbuck, h->maddr + m/BKPERBLK))
|
|
panic("cwinit: checktag c bucket");
|
|
putbuf(p);
|
|
}
|
|
putbuf(cb);
|
|
}
|
|
|
|
Off
|
|
cwsaddr(Device *dev)
|
|
{
|
|
Iobuf *cb;
|
|
Off sa;
|
|
|
|
cb = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bres);
|
|
sa = ((Cache*)cb->iobuf)->sbaddr;
|
|
putbuf(cb);
|
|
return sa;
|
|
}
|
|
|
|
Off
|
|
cwraddr(Device *dev)
|
|
{
|
|
Iobuf *cb;
|
|
Off ra;
|
|
|
|
switch(dev->type) {
|
|
default:
|
|
fprint(2, "unknown dev in cwraddr %Z\n", dev);
|
|
return 1;
|
|
|
|
case Devcw:
|
|
cb = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bres);
|
|
ra = ((Cache*)cb->iobuf)->cwraddr;
|
|
break;
|
|
|
|
case Devro:
|
|
cb = getbuf(CDEV(dev->ro.parent), CACHE_ADDR, Brd|Bres);
|
|
ra = ((Cache*)cb->iobuf)->roraddr;
|
|
break;
|
|
}
|
|
putbuf(cb);
|
|
return ra;
|
|
}
|
|
|
|
Devsize
|
|
cwsize(Device *dev)
|
|
{
|
|
Iobuf *cb;
|
|
Devsize fs;
|
|
|
|
cb = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bres);
|
|
fs = ((Cache*)cb->iobuf)->fsize;
|
|
putbuf(cb);
|
|
return fs;
|
|
}
|
|
|
|
int
|
|
cwread(Device *dev, Off b, void *c)
|
|
{
|
|
return cwio(dev, b, c, Oread) == Cerror;
|
|
}
|
|
|
|
int
|
|
cwwrite(Device *dev, Off b, void *c)
|
|
{
|
|
return cwio(dev, b, c, Owrite) == Cerror;
|
|
}
|
|
|
|
int
|
|
roread(Device *dev, Off b, void *c)
|
|
{
|
|
Device *d;
|
|
int s;
|
|
|
|
/*
|
|
* maybe better is to try buffer pool first
|
|
*/
|
|
d = dev->ro.parent;
|
|
if(d == 0 || d->type != Devcw ||
|
|
d->private == 0 || RDEV(d) != dev) {
|
|
fprint(2, "bad rodev %Z\n", dev);
|
|
return 1;
|
|
}
|
|
s = cwio(d, b, 0, Onone);
|
|
if(s == Cdump || s == Cdump1 || s == Cread) {
|
|
s = cwio(d, b, c, Oread);
|
|
if(s == Cdump || s == Cdump1 || s == Cread) {
|
|
if(cons.flags & roflag)
|
|
print("roread: %Z %lld -> %Z(hit)\n",
|
|
dev, (Wideoff)b, d);
|
|
return 0;
|
|
}
|
|
}
|
|
if(cons.flags & roflag)
|
|
print("roread: %Z %lld -> %Z(miss)\n",
|
|
dev, (Wideoff)b, WDEV(d));
|
|
return devread(WDEV(d), b, c);
|
|
}
|
|
|
|
int
|
|
cwio(Device *dev, Off addr, void *buf, int opcode)
|
|
{
|
|
Iobuf *p, *p1, *p2, *cb;
|
|
Cache *h;
|
|
Bucket *b;
|
|
Centry *c;
|
|
Off bn, a1, a2, max, newmax;
|
|
int state;
|
|
Cw *cw;
|
|
|
|
cw = dev->private;
|
|
|
|
cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bres);
|
|
h = (Cache*)cb->iobuf;
|
|
if(toytime() >= h->toytime) {
|
|
cb->flags |= Bmod;
|
|
h->toytime = toytime() + SECOND(30);
|
|
h->time = time(nil);
|
|
}
|
|
|
|
if(addr < 0) {
|
|
putbuf(cb);
|
|
return Cerror;
|
|
}
|
|
|
|
bn = addr % h->msize;
|
|
a1 = h->maddr + bn/BKPERBLK;
|
|
if (conf.newcache)
|
|
a2 = bn + h->caddr;
|
|
else
|
|
a2 = bn*CEPERBK + h->caddr;
|
|
max = h->wmax;
|
|
|
|
putbuf(cb);
|
|
newmax = 0;
|
|
|
|
p = getbuf(cw->cdev, a1, Brd|Bmod);
|
|
if(!p || checktag(p, Tbuck, a1))
|
|
panic("cwio: checktag c bucket");
|
|
b = (Bucket*)p->iobuf + bn%BKPERBLK;
|
|
|
|
c = getcentry(b, addr);
|
|
if(c == 0) {
|
|
putbuf(p);
|
|
fprint(2, "%Z disk cache bucket %lld is full\n",
|
|
cw->cdev, (Wideoff)a1);
|
|
return Cerror;
|
|
}
|
|
if (conf.newcache)
|
|
a2 += (c - b->entry) * h->msize;
|
|
else
|
|
a2 += c - b->entry;
|
|
|
|
state = c->state;
|
|
switch(opcode) {
|
|
default:
|
|
goto bad;
|
|
|
|
case Onone:
|
|
break;
|
|
|
|
case Oread:
|
|
switch(state) {
|
|
default:
|
|
goto bad;
|
|
|
|
case Cread:
|
|
if(!devread(cw->cdev, a2, buf))
|
|
break;
|
|
c->state = Cnone;
|
|
|
|
case Cnone:
|
|
if(devread(cw->wdev, addr, buf)) {
|
|
state = Cerror;
|
|
break;
|
|
}
|
|
if(addr > max)
|
|
newmax = addr;
|
|
if(!devwrite(cw->cdev, a2, buf))
|
|
c->state = Cread;
|
|
break;
|
|
|
|
case Cdirty:
|
|
case Cdump:
|
|
case Cdump1:
|
|
case Cwrite:
|
|
if(devread(cw->cdev, a2, buf))
|
|
state = Cerror;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case Owrite:
|
|
switch(state) {
|
|
default:
|
|
goto bad;
|
|
|
|
case Cdump:
|
|
case Cdump1:
|
|
/*
|
|
* this is hard part -- a dump block must be
|
|
* sent to the worm if it is rewritten.
|
|
* if this causes an error, there is no
|
|
* place to save the dump1 data. the block
|
|
* is just reclassified as 'dump1' (botch)
|
|
*/
|
|
p1 = getbuf(devnone, Cwio1, 0);
|
|
if(devread(cw->cdev, a2, p1->iobuf)) {
|
|
putbuf(p1);
|
|
fprint(2, "cwio: write induced dump error - r cache\n");
|
|
|
|
casenone:
|
|
if(devwrite(cw->cdev, a2, buf)) {
|
|
state = Cerror;
|
|
break;
|
|
}
|
|
c->state = Cdump1;
|
|
break;
|
|
}
|
|
if(devwrite(cw->wdev, addr, p1->iobuf)) {
|
|
p2 = getbuf(devnone, Cwio2, 0);
|
|
if(devread(cw->wdev, addr, p2->iobuf)) {
|
|
putbuf(p1);
|
|
putbuf(p2);
|
|
fprint(2, "cwio: write induced dump error - r+w worm\n");
|
|
goto casenone;
|
|
}
|
|
if(memcmp(p1->iobuf, p2->iobuf, RBUFSIZE)) {
|
|
putbuf(p1);
|
|
putbuf(p2);
|
|
fprint(2, "cwio: write induced dump error - w worm\n");
|
|
goto casenone;
|
|
}
|
|
putbuf(p2);
|
|
}
|
|
putbuf(p1);
|
|
c->state = Cread;
|
|
if(addr > max)
|
|
newmax = addr;
|
|
cw->ncopy++;
|
|
|
|
case Cnone:
|
|
case Cread:
|
|
if(devwrite(cw->cdev, a2, buf)) {
|
|
state = Cerror;
|
|
break;
|
|
}
|
|
c->state = Cwrite;
|
|
break;
|
|
|
|
case Cdirty:
|
|
case Cwrite:
|
|
if(devwrite(cw->cdev, a2, buf))
|
|
state = Cerror;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case Ogrow:
|
|
if(state != Cnone) {
|
|
fprint(2, "%Z for block %lld cwgrow with state = %s\n",
|
|
cw->cdev, (Wideoff)addr, cwnames[state]);
|
|
break;
|
|
}
|
|
c->state = Cdirty;
|
|
break;
|
|
|
|
case Odump:
|
|
if(state != Cdirty) { /* BOTCH */
|
|
fprint(2, "%Z for block %lld cwdump with state = %s\n",
|
|
cw->cdev, (Wideoff)addr, cwnames[state]);
|
|
break;
|
|
}
|
|
c->state = Cdump;
|
|
cw->ndump++; /* only called from dump command */
|
|
break;
|
|
|
|
case Orele:
|
|
if(state != Cwrite) {
|
|
if(state != Cdump1)
|
|
fprint(2, "%Z for block %lld cwrele with state = %s\n",
|
|
cw->cdev, (Wideoff)addr, cwnames[state]);
|
|
break;
|
|
}
|
|
c->state = Cnone;
|
|
break;
|
|
|
|
case Ofree:
|
|
if(state == Cwrite || state == Cread)
|
|
c->state = Cnone;
|
|
break;
|
|
}
|
|
if(chatty > 1)
|
|
print("cwio: %Z %lld s=%s o=%s ns=%s\n",
|
|
dev, (Wideoff)addr, cwnames[state],
|
|
cwnames[opcode],
|
|
cwnames[c->state]);
|
|
putbuf(p);
|
|
if(newmax) {
|
|
cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bmod|Bres);
|
|
h = (Cache*)cb->iobuf;
|
|
if(newmax > h->wmax)
|
|
h->wmax = newmax;
|
|
putbuf(cb);
|
|
}
|
|
return state;
|
|
|
|
bad:
|
|
fprint(2, "%Z block %lld cw state = %s; cw opcode = %s",
|
|
dev, (Wideoff)addr, cwnames[state], cwnames[opcode]);
|
|
return Cerror;
|
|
}
|
|
|
|
|
|
int
|
|
cwgrow(Device *dev, Superb *sb, int)
|
|
{
|
|
Iobuf *cb;
|
|
Cache *h;
|
|
Off fs, nfs, ws;
|
|
|
|
cb = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bmod|Bres);
|
|
h = (Cache*)cb->iobuf;
|
|
ws = h->wsize;
|
|
fs = h->fsize;
|
|
if(fs >= ws)
|
|
return 0;
|
|
nfs = fs + ADDFREE;
|
|
if(nfs >= ws)
|
|
nfs = ws;
|
|
h->fsize = nfs;
|
|
putbuf(cb);
|
|
|
|
sb->fsize = nfs;
|
|
for(nfs--; nfs>=fs; nfs--)
|
|
switch(cwio(dev, nfs, 0, Ogrow)) {
|
|
case Cerror:
|
|
return 0;
|
|
case Cnone:
|
|
addfree(dev, nfs, sb);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
cwfree(Device *dev, Off addr)
|
|
{
|
|
int state;
|
|
|
|
if(dev->type == Devcw) {
|
|
state = cwio(dev, addr, 0, Ofree);
|
|
if(state != Cdirty)
|
|
return 1; /* do not put in freelist */
|
|
}
|
|
return 0; /* put in freelist */
|
|
}
|
|
|
|
#ifdef unused
|
|
int
|
|
bktcheck(Bucket *b)
|
|
{
|
|
Centry *c, *c1, *c2, *ce;
|
|
int err;
|
|
|
|
err = 0;
|
|
if(b->agegen < CEPERBK || b->agegen > MAXAGE) {
|
|
print("agegen %ld\n", b->agegen);
|
|
err = 1;
|
|
}
|
|
|
|
ce = b->entry + CEPERBK;
|
|
c1 = 0; /* lowest age last pass */
|
|
for(;;) {
|
|
c2 = 0; /* lowest age this pass */
|
|
for(c = b->entry; c < ce; c++) {
|
|
if(c1 != 0 && c != c1) {
|
|
if(c->age == c1->age) {
|
|
print("same age %d\n", c->age);
|
|
err = 1;
|
|
}
|
|
if(c1->waddr == c->waddr)
|
|
if(c1->state != Cnone)
|
|
if(c->state != Cnone) {
|
|
print("same waddr %lld\n",
|
|
(Wideoff)c->waddr);
|
|
err = 1;
|
|
}
|
|
}
|
|
if(c1 != 0 && c->age <= c1->age)
|
|
continue;
|
|
if(c2 == 0 || c->age < c2->age)
|
|
c2 = c;
|
|
}
|
|
if(c2 == 0)
|
|
break;
|
|
c1 = c2;
|
|
if(c1->age >= b->agegen) {
|
|
print("age >= generator %d %ld\n", c1->age, b->agegen);
|
|
err = 1;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
void
|
|
resequence(Bucket *b)
|
|
{
|
|
Centry *c, *ce, *cr;
|
|
int age, i;
|
|
|
|
ce = b->entry + CEPERBK;
|
|
for(c = b->entry; c < ce; c++) {
|
|
c->age += CEPERBK;
|
|
if(c->age < CEPERBK)
|
|
c->age = MAXAGE;
|
|
}
|
|
b->agegen += CEPERBK;
|
|
|
|
age = 0;
|
|
for(i=0;; i++) {
|
|
cr = 0;
|
|
for(c = b->entry; c < ce; c++) {
|
|
if(c->age < i)
|
|
continue;
|
|
if(cr == 0 || c->age < age) {
|
|
cr = c;
|
|
age = c->age;
|
|
}
|
|
}
|
|
if(cr == 0)
|
|
break;
|
|
cr->age = i;
|
|
}
|
|
b->agegen = i;
|
|
cons.nreseq++;
|
|
}
|
|
|
|
Centry*
|
|
getcentry(Bucket *b, Off addr)
|
|
{
|
|
Centry *c, *ce, *cr;
|
|
int s, age;
|
|
|
|
/*
|
|
* search for cache hit
|
|
* find oldest block as byproduct
|
|
*/
|
|
ce = b->entry + CEPERBK;
|
|
age = 0;
|
|
cr = 0;
|
|
for(c = b->entry; c < ce; c++) {
|
|
s = c->state;
|
|
if(s == Cnone) {
|
|
cr = c;
|
|
age = 0;
|
|
continue;
|
|
}
|
|
if(c->waddr == addr)
|
|
goto found;
|
|
if(s == Cread)
|
|
if(cr == 0 || c->age < age) {
|
|
cr = c;
|
|
age = c->age;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* remap entry
|
|
*/
|
|
c = cr;
|
|
if(c == 0)
|
|
return 0; /* bucket is full */
|
|
|
|
c->state = Cnone;
|
|
c->waddr = addr;
|
|
|
|
found:
|
|
/*
|
|
* update the age to get filo cache.
|
|
* small number in age means old
|
|
*/
|
|
if(!cons.noage || c->state == Cnone) {
|
|
age = b->agegen;
|
|
c->age = age;
|
|
age++;
|
|
b->agegen = age;
|
|
if(age < 0 || age >= MAXAGE)
|
|
resequence(b);
|
|
}
|
|
return c;
|
|
}
|
|
|
|
/*
|
|
* ream the cache
|
|
* calculate new buckets
|
|
*/
|
|
Iobuf*
|
|
cacheinit(Device *dev)
|
|
{
|
|
Iobuf *cb, *p;
|
|
Cache *h;
|
|
Device *cdev;
|
|
Off m;
|
|
|
|
if(chatty)
|
|
print("cache init %Z\n", dev);
|
|
cdev = CDEV(dev);
|
|
devinit(cdev);
|
|
|
|
cb = getbuf(cdev, CACHE_ADDR, Bmod|Bres);
|
|
memset(cb->iobuf, 0, RBUFSIZE);
|
|
settag(cb, Tcache, QPSUPER);
|
|
h = (Cache*)cb->iobuf;
|
|
|
|
/*
|
|
* calculate csize such that
|
|
* tsize = msize/BKPERBLK + csize and
|
|
* msize = csize/CEPERBK
|
|
*/
|
|
h->maddr = CACHE_ADDR + 1;
|
|
m = devsize(cdev) - h->maddr;
|
|
h->csize = ((Devsize)(m-1) * CEPERBK*BKPERBLK) / (CEPERBK*BKPERBLK+1);
|
|
h->msize = h->csize/CEPERBK - 5;
|
|
while(!prime(h->msize))
|
|
h->msize--;
|
|
h->csize = h->msize*CEPERBK;
|
|
h->caddr = h->maddr + (h->msize+BKPERBLK-1)/BKPERBLK;
|
|
h->wsize = devsize(WDEV(dev));
|
|
|
|
if(h->msize <= 0)
|
|
panic("cache too small");
|
|
if(h->caddr + h->csize > m)
|
|
panic("cache size error");
|
|
|
|
/*
|
|
* setup cache map
|
|
*/
|
|
for(m=h->maddr; m<h->caddr; m++) {
|
|
p = getbuf(cdev, m, Bmod);
|
|
memset(p->iobuf, 0, RBUFSIZE);
|
|
settag(p, Tbuck, m);
|
|
putbuf(p);
|
|
}
|
|
return cb;
|
|
}
|
|
|
|
Off
|
|
getstartsb(Device *dev)
|
|
{
|
|
Filsys *f;
|
|
Startsb *s;
|
|
|
|
for(f=filsys; f->name; f++){
|
|
if(devcmpr(f->dev, dev) == 0) {
|
|
for(s=startsb; s->name; s++)
|
|
if(strcmp(f->name, s->name) == 0)
|
|
return s->startsb;
|
|
fprint(2, "getstartsb: no special starting superblock for %Z %s\n",
|
|
dev, f->name);
|
|
return FIRST;
|
|
}
|
|
}
|
|
fprint(2, "getstartsb: no filsys for device %Z\n", dev);
|
|
return FIRST;
|
|
}
|
|
|
|
/*
|
|
* ream the cache
|
|
* calculate new buckets
|
|
* get superblock from
|
|
* last worm dump block.
|
|
*/
|
|
void
|
|
cwrecover(Device *dev)
|
|
{
|
|
Iobuf *p, *cb;
|
|
Cache *h;
|
|
Superb *s;
|
|
Off m, baddr;
|
|
Device *wdev;
|
|
|
|
if(chatty)
|
|
print("cwrecover %Z\n", dev);
|
|
cwinit1(dev);
|
|
wdev = WDEV(dev);
|
|
|
|
p = getbuf(devnone, Cwxx1, 0);
|
|
s = (Superb*)p->iobuf;
|
|
baddr = 0;
|
|
m = getstartsb(dev);
|
|
localconfinit();
|
|
if(conf.firstsb)
|
|
m = conf.firstsb;
|
|
for(;;) {
|
|
memset(p->iobuf, 0, RBUFSIZE);
|
|
if(devread(wdev, m, p->iobuf) ||
|
|
checktag(p, Tsuper, QPSUPER))
|
|
break;
|
|
baddr = m;
|
|
m = s->next;
|
|
if(chatty)
|
|
print("dump %lld is good; %lld next\n", (Wideoff)baddr, (Wideoff)m);
|
|
if(baddr == conf.recovsb)
|
|
break;
|
|
}
|
|
putbuf(p);
|
|
if(!baddr)
|
|
panic("recover: no superblock");
|
|
|
|
p = getbuf(wdev, baddr, Brd);
|
|
s = (Superb*)p->iobuf;
|
|
|
|
cb = cacheinit(dev);
|
|
h = (Cache*)cb->iobuf;
|
|
h->sbaddr = baddr;
|
|
h->cwraddr = s->cwraddr;
|
|
h->roraddr = s->roraddr;
|
|
h->fsize = s->fsize + 100; /* this must be conservative */
|
|
if(conf.recovcw)
|
|
h->cwraddr = conf.recovcw;
|
|
if(conf.recovro)
|
|
h->roraddr = conf.recovro;
|
|
|
|
putbuf(cb);
|
|
putbuf(p);
|
|
|
|
p = getbuf(dev, baddr, Brd|Bmod);
|
|
s = (Superb*)p->iobuf;
|
|
|
|
memset(&s->fbuf, 0, sizeof(s->fbuf));
|
|
s->fbuf.free[0] = 0;
|
|
s->fbuf.nfree = 1;
|
|
s->tfree = 0;
|
|
if(conf.recovcw)
|
|
s->cwraddr = conf.recovcw;
|
|
if(conf.recovro)
|
|
s->roraddr = conf.recovro;
|
|
|
|
putbuf(p);
|
|
}
|
|
|
|
/*
|
|
* ream the cache
|
|
* calculate new buckets
|
|
* initialize superblock.
|
|
*/
|
|
void
|
|
cwream(Device *dev)
|
|
{
|
|
Iobuf *p, *cb;
|
|
Cache *h;
|
|
Superb *s;
|
|
Off m, baddr;
|
|
Device *cdev;
|
|
|
|
if(chatty)
|
|
print("cwream %Z\n", dev);
|
|
cwinit1(dev);
|
|
cdev = CDEV(dev);
|
|
devinit(cdev);
|
|
|
|
baddr = FIRST; /* baddr = super addr
|
|
baddr+1 = cw root
|
|
baddr+2 = ro root
|
|
baddr+3 = reserved next superblock */
|
|
|
|
cb = cacheinit(dev);
|
|
h = (Cache*)cb->iobuf;
|
|
|
|
h->sbaddr = baddr;
|
|
h->cwraddr = baddr+1;
|
|
h->roraddr = baddr+2;
|
|
h->fsize = 0; /* prevents superream from freeing */
|
|
|
|
putbuf(cb);
|
|
|
|
for(m=0; m<3; m++)
|
|
cwio(dev, baddr+m, 0, Ogrow);
|
|
superream(dev, baddr);
|
|
rootream(dev, baddr+1); /* cw root */
|
|
rootream(dev, baddr+2); /* ro root */
|
|
|
|
cb = getbuf(cdev, CACHE_ADDR, Brd|Bmod|Bres);
|
|
h = (Cache*)cb->iobuf;
|
|
h->fsize = baddr+4;
|
|
putbuf(cb);
|
|
|
|
p = getbuf(dev, baddr, Brd|Bmod|Bimm);
|
|
s = (Superb*)p->iobuf;
|
|
s->last = baddr;
|
|
s->cwraddr = baddr+1;
|
|
s->roraddr = baddr+2;
|
|
s->next = baddr+3;
|
|
s->fsize = baddr+4;
|
|
putbuf(p);
|
|
|
|
for(m=0; m<3; m++)
|
|
cwio(dev, baddr+m, 0, Odump);
|
|
}
|
|
|
|
Off
|
|
rewalk1(Cw *cw, Off addr, int slot, Wpath *up)
|
|
{
|
|
Iobuf *p, *p1;
|
|
Dentry *d;
|
|
|
|
if(up == 0)
|
|
return cwraddr(cw->dev);
|
|
up->addr = rewalk1(cw, up->addr, up->slot, up->up);
|
|
p = getbuf(cw->dev, up->addr, Brd|Bmod);
|
|
d = getdir(p, up->slot);
|
|
if(!d || !(d->mode & DALLOC)) {
|
|
fprint(2, "rewalk1 1\n");
|
|
if(p)
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
p1 = dnodebuf(p, d, slot/DIRPERBUF, 0, 0);
|
|
if(!p1) {
|
|
fprint(2, "rewalk1 2\n");
|
|
if(p)
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
if(chatty > 1)
|
|
print("rewalk1 %lld to %lld \"%s\"\n",
|
|
(Wideoff)addr, (Wideoff)p1->addr, d->name);
|
|
addr = p1->addr;
|
|
p1->flags |= Bmod;
|
|
putbuf(p1);
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
|
|
Off
|
|
rewalk2(Cw *cw, Off addr, int slot, Wpath *up)
|
|
{
|
|
Iobuf *p, *p1;
|
|
Dentry *d;
|
|
|
|
if(up == 0)
|
|
return cwraddr(cw->rodev);
|
|
up->addr = rewalk2(cw, up->addr, up->slot, up->up);
|
|
p = getbuf(cw->rodev, up->addr, Brd);
|
|
d = getdir(p, up->slot);
|
|
if(!d || !(d->mode & DALLOC)) {
|
|
fprint(2, "rewalk2 1\n");
|
|
if(p)
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
p1 = dnodebuf(p, d, slot/DIRPERBUF, 0, 0);
|
|
if(!p1) {
|
|
fprint(2, "rewalk2 2\n");
|
|
if(p)
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
if(chatty > 1)
|
|
print("rewalk2 %lld to %lld \"%s\"\n",
|
|
(Wideoff)addr, (Wideoff)p1->addr, d->name);
|
|
addr = p1->addr;
|
|
putbuf(p1);
|
|
putbuf(p);
|
|
return addr;
|
|
}
|
|
|
|
void
|
|
rewalk(Cw *cw)
|
|
{
|
|
int h;
|
|
File *f;
|
|
|
|
for(h=0; h<nelem(flist); h++)
|
|
for(f=flist[h]; f; f=f->next) {
|
|
if(!f->fs)
|
|
continue;
|
|
if(cw->dev == f->fs->dev)
|
|
f->addr = rewalk1(cw, f->addr, f->slot, f->wpath);
|
|
else
|
|
if(cw->rodev == f->fs->dev)
|
|
f->addr = rewalk2(cw, f->addr, f->slot, f->wpath);
|
|
}
|
|
}
|
|
|
|
Off
|
|
split(Cw *cw, Iobuf *p, Off addr)
|
|
{
|
|
Off na;
|
|
int state;
|
|
|
|
na = 0;
|
|
if(p && (p->flags & Bmod)) {
|
|
p->flags |= Bimm;
|
|
putbuf(p);
|
|
p = 0;
|
|
}
|
|
|
|
state = cwio(cw->dev, addr, 0, Onone); /* read the state (twice?) */
|
|
switch(state) {
|
|
default:
|
|
panic("split: unknown state %s", cwnames[state]);
|
|
|
|
case Cerror:
|
|
case Cnone:
|
|
case Cdump:
|
|
case Cread:
|
|
break;
|
|
|
|
case Cdump1:
|
|
case Cwrite:
|
|
/*
|
|
* botch.. could be done by relabeling
|
|
*/
|
|
if(!p){
|
|
p = getbuf(cw->dev, addr, Brd);
|
|
if(p == nil) {
|
|
fprint(2, "split: null getbuf\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
na = cw->fsize;
|
|
cw->fsize = na+1;
|
|
cwio(cw->dev, na, 0, Ogrow);
|
|
cwio(cw->dev, na, p->iobuf, Owrite);
|
|
cwio(cw->dev, na, 0, Odump);
|
|
cwio(cw->dev, addr, 0, Orele);
|
|
break;
|
|
|
|
case Cdirty:
|
|
cwio(cw->dev, addr, 0, Odump);
|
|
break;
|
|
}
|
|
if(p)
|
|
putbuf(p);
|
|
return na;
|
|
}
|
|
|
|
int
|
|
isdirty(Cw *cw, Iobuf *p, Off addr, int tag)
|
|
{
|
|
int s;
|
|
|
|
if(p && (p->flags & Bmod))
|
|
return 1;
|
|
s = cwio(cw->dev, addr, 0, Onone);
|
|
if(s == Cdirty || s == Cwrite)
|
|
return 1;
|
|
if(tag >= Tind1 && tag <= Tmaxind)
|
|
/* botch, get these modified */
|
|
if(s != Cnone)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
Off
|
|
cwrecur(Cw *cw, Off addr, int tag, int tag1, long qp)
|
|
{
|
|
Iobuf *p, *b;
|
|
Dentry *d;
|
|
long qp1;
|
|
int i, j, shouldstop;
|
|
Off na;
|
|
char *np;
|
|
|
|
shouldstop = 0;
|
|
p = getbuf(cw->dev, addr, Bprobe);
|
|
if(!isdirty(cw, p, addr, tag)) {
|
|
if(!cw->all) {
|
|
if(chatty > 1)
|
|
print("cwrecur: %lld t=%s not dirty %s\n",
|
|
(Wideoff)addr, tagnames[tag], cw->name);
|
|
if(p)
|
|
putbuf(p);
|
|
return 0;
|
|
}
|
|
shouldstop = 1;
|
|
}
|
|
if(chatty > 1)
|
|
print("cwrecur: %lld t=%s %s\n",
|
|
(Wideoff)addr, tagnames[tag], cw->name);
|
|
if(cw->depth >= 100) {
|
|
fprint(2, "dump depth too great %s\n", cw->name);
|
|
if(p)
|
|
putbuf(p);
|
|
return 0;
|
|
}
|
|
cw->depth++;
|
|
|
|
b = nil;
|
|
switch(tag) {
|
|
default:
|
|
fprint(2, "cwrecur: unknown tag %d %s\n", tag, cw->name);
|
|
|
|
case Tfile:
|
|
break;
|
|
|
|
case Tsuper:
|
|
case Tdir:
|
|
if(!p) {
|
|
p = getbuf(cw->dev, addr, Brd);
|
|
if(!p || checktag(p, tag, qp)) {
|
|
fprint(2, "cwrecur: Tdir p null %s\n", cw->name);
|
|
if(p){
|
|
putbuf(p);
|
|
p = nil;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if(tag == Tdir) {
|
|
cw->namepad[0] = 0; /* force room */
|
|
np = strchr(cw->name, 0);
|
|
*np++ = '/';
|
|
} else {
|
|
np = 0; /* set */
|
|
cw->name[0] = 0;
|
|
}
|
|
|
|
for(i=0; i<DIRPERBUF; i++) {
|
|
d = getdir(p, i);
|
|
if(!(d->mode & DALLOC))
|
|
continue;
|
|
if(d->mode & DTMP)
|
|
continue;
|
|
qp1 = d->qid.path & ~QPDIR;
|
|
if(tag == Tdir)
|
|
strncpy(np, d->name, NAMELEN);
|
|
else if(i > 0)
|
|
fprint(2, "cwrecur: root with >1 directory\n");
|
|
tag1 = Tfile;
|
|
if(d->mode & DDIR)
|
|
tag1 = Tdir;
|
|
for(j=0; j<NDBLOCK; j++) {
|
|
na = d->dblock[j];
|
|
if(na) {
|
|
na = cwrecur(cw, na, tag1, 0, qp1);
|
|
if(na) {
|
|
d->dblock[j] = na;
|
|
p->flags |= Bmod;
|
|
}
|
|
}
|
|
}
|
|
for (j = 0; j < NIBLOCK; j++) {
|
|
na = d->iblocks[j];
|
|
if(na) {
|
|
na = cwrecur(cw, na, Tind1+j, tag1, qp1);
|
|
if(na) {
|
|
d->iblocks[j] = na;
|
|
p->flags |= Bmod;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for(i=0; i<DIRPERBUF; i++){
|
|
d = getdir(p, i);
|
|
if(!(d->mode & DALLOC))
|
|
continue;
|
|
if(d->mode & DTMP){
|
|
if(!b){
|
|
b = getbuf(devnone, Cwtmp, 0);
|
|
memmove(b->iobuf, p->iobuf, RBUFSIZE);
|
|
}
|
|
memset(d, 0, sizeof(Dentry));
|
|
p->flags |= Bmod;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case Tind1:
|
|
j = tag1;
|
|
tag1 = 0;
|
|
goto tind;
|
|
|
|
case Tind2:
|
|
#ifndef COMPAT32
|
|
case Tind3:
|
|
case Tind4:
|
|
/* add more Tind tags here ... */
|
|
#endif
|
|
j = tag-1;
|
|
tind:
|
|
if(!p) {
|
|
p = getbuf(cw->dev, addr, Brd);
|
|
if(!p || checktag(p, tag, qp)) {
|
|
fprint(2, "cwrecur: Tind p null %s\n", cw->name);
|
|
if(p){
|
|
putbuf(p);
|
|
p = nil;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
for(i=0; i<INDPERBUF; i++) {
|
|
na = ((Off *)p->iobuf)[i];
|
|
if(na) {
|
|
na = cwrecur(cw, na, j, tag1, qp);
|
|
if(na) {
|
|
((Off *)p->iobuf)[i] = na;
|
|
p->flags |= Bmod;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
na = split(cw, p, addr);
|
|
|
|
cw->depth--;
|
|
|
|
if(b){
|
|
p = getbuf(cw->dev, na ? na : addr, Brd);
|
|
if(!p || checktag(p, tag, qp)){
|
|
fprint(2, "cwrecur: b/p null\n");
|
|
na = 0;
|
|
} else {
|
|
memmove(p->iobuf, b->iobuf, RBUFSIZE);
|
|
p->flags |= Bmod|Bimm;
|
|
}
|
|
if(p)
|
|
putbuf(p);
|
|
putbuf(b);
|
|
}
|
|
|
|
if(na){
|
|
if(shouldstop){
|
|
if(cw->falsehits < 10)
|
|
fprint(2, "shouldstop %lld %lld t=%s %s\n",
|
|
(Wideoff)addr, (Wideoff)na,
|
|
tagnames[tag], cw->name);
|
|
cw->falsehits++;
|
|
}
|
|
}
|
|
|
|
return na;
|
|
}
|
|
|
|
Timet nextdump(Timet t);
|
|
|
|
void
|
|
cfsdump(Filsys *fs)
|
|
{
|
|
long m, n, i;
|
|
Off orba, rba, oroa, roa, sba, a;
|
|
Timet tim;
|
|
char tstr[20];
|
|
Iobuf *pr, *p1, *p;
|
|
Dentry *dr, *d1, *d;
|
|
Cache *h;
|
|
Superb *s;
|
|
Cw *cw;
|
|
|
|
if(fs->dev->type != Devcw) {
|
|
fprint(2, "cant dump; not cw device: %Z\n", fs->dev);
|
|
return;
|
|
}
|
|
cw = fs->dev->private;
|
|
if(cw == 0) {
|
|
fprint(2, "cant dump: has not been inited: %Z\n", fs->dev);
|
|
return;
|
|
}
|
|
|
|
tim = toytime();
|
|
wlock(&mainlock); /* dump */
|
|
|
|
/*
|
|
* set up static structure
|
|
* with frequent variables
|
|
*/
|
|
cw->ndump = 0;
|
|
cw->name[0] = 0;
|
|
cw->depth = 0;
|
|
|
|
/*
|
|
* cw root
|
|
*/
|
|
sync("before dump");
|
|
cw->fsize = cwsize(cw->dev);
|
|
orba = cwraddr(cw->dev);
|
|
if(chatty)
|
|
print("cwroot %lld", (Wideoff)orba);
|
|
cons.noage = 1;
|
|
cw->all = cw->allflag;
|
|
rba = cwrecur(cw, orba, Tsuper, 0, QPROOT);
|
|
if(rba == 0)
|
|
rba = orba;
|
|
if(chatty)
|
|
print("->%lld\n", (Wideoff)rba);
|
|
sync("after cw");
|
|
|
|
/*
|
|
* partial super block
|
|
*/
|
|
p = getbuf(cw->dev, cwsaddr(cw->dev), Brd|Bmod|Bimm);
|
|
s = (Superb*)p->iobuf;
|
|
s->fsize = cw->fsize;
|
|
s->cwraddr = rba;
|
|
putbuf(p);
|
|
|
|
/*
|
|
* partial cache block
|
|
*/
|
|
p = getbuf(cw->cdev, CACHE_ADDR, Brd|Bmod|Bimm|Bres);
|
|
h = (Cache*)p->iobuf;
|
|
h->fsize = cw->fsize;
|
|
h->cwraddr = rba;
|
|
putbuf(p);
|
|
|
|
/*
|
|
* ro root
|
|
*/
|
|
oroa = cwraddr(cw->rodev);
|
|
pr = getbuf(cw->dev, oroa, Brd|Bmod);
|
|
dr = getdir(pr, 0);
|
|
|
|
datestr(tstr, time(nil)); /* tstr = "yyyymmdd" */
|
|
n = 0;
|
|
for(a=0;; a++) {
|
|
p1 = dnodebuf(pr, dr, a, Tdir, 0);
|
|
if(!p1)
|
|
goto bad;
|
|
n++;
|
|
for(i=0; i<DIRPERBUF; i++) {
|
|
d1 = getdir(p1, i);
|
|
if(!d1)
|
|
goto bad;
|
|
if(!(d1->mode & DALLOC))
|
|
goto found1;
|
|
if(!memcmp(d1->name, tstr, 4))
|
|
goto found2; /* found entry */
|
|
}
|
|
putbuf(p1);
|
|
}
|
|
|
|
/*
|
|
* no year directory, create one
|
|
*/
|
|
found1:
|
|
p = getbuf(cw->dev, rba, Brd);
|
|
d = getdir(p, 0);
|
|
d1->qid = d->qid;
|
|
d1->qid.version += n;
|
|
memmove(d1->name, tstr, 4);
|
|
d1->mode = d->mode;
|
|
d1->uid = d->uid;
|
|
d1->gid = d->gid;
|
|
putbuf(p);
|
|
accessdir(p1, d1, FWRITE, 0);
|
|
|
|
/*
|
|
* put mmdd[count] in year directory
|
|
*/
|
|
found2:
|
|
accessdir(p1, d1, FREAD, 0);
|
|
putbuf(pr);
|
|
pr = p1;
|
|
dr = d1;
|
|
|
|
n = 0;
|
|
m = 0;
|
|
for(a=0;; a++) {
|
|
p1 = dnodebuf(pr, dr, a, Tdir, 0);
|
|
if(!p1)
|
|
goto bad;
|
|
n++;
|
|
for(i=0; i<DIRPERBUF; i++) {
|
|
d1 = getdir(p1, i);
|
|
if(!d1)
|
|
goto bad;
|
|
if(!(d1->mode & DALLOC))
|
|
goto found;
|
|
if(!memcmp(d1->name, tstr+4, 4))
|
|
m++;
|
|
}
|
|
putbuf(p1);
|
|
}
|
|
|
|
/*
|
|
* empty slot put in root
|
|
*/
|
|
found:
|
|
if(m) /* how many dumps this date */
|
|
sprint(tstr+8, "%ld", m);
|
|
|
|
p = getbuf(cw->dev, rba, Brd);
|
|
d = getdir(p, 0);
|
|
*d1 = *d; /* qid is QPROOT */
|
|
putbuf(p);
|
|
strcpy(d1->name, tstr+4);
|
|
d1->qid.version += n;
|
|
accessdir(p1, d1, FWRITE, 0);
|
|
putbuf(p1);
|
|
putbuf(pr);
|
|
|
|
cw->fsize = cwsize(cw->dev);
|
|
oroa = cwraddr(cw->rodev); /* probably redundant */
|
|
if(chatty)
|
|
print("roroot %lld", (Wideoff)oroa);
|
|
|
|
cons.noage = 0;
|
|
cw->all = 0;
|
|
roa = cwrecur(cw, oroa, Tsuper, 0, QPROOT);
|
|
if(roa == 0)
|
|
roa = oroa;
|
|
if(chatty)
|
|
print("->%lld /%.4s/%s\n", (Wideoff)roa, tstr, tstr+4);
|
|
sync("after ro");
|
|
|
|
/*
|
|
* final super block
|
|
*/
|
|
a = cwsaddr(cw->dev);
|
|
if(chatty)
|
|
print("sblock %lld", (Wideoff)a);
|
|
p = getbuf(cw->dev, a, Brd|Bmod|Bimm);
|
|
s = (Superb*)p->iobuf;
|
|
s->last = a;
|
|
sba = s->next;
|
|
s->next = cw->fsize;
|
|
cw->fsize++;
|
|
s->fsize = cw->fsize;
|
|
s->roraddr = roa;
|
|
|
|
cwio(cw->dev, sba, 0, Ogrow);
|
|
cwio(cw->dev, sba, p->iobuf, Owrite);
|
|
cwio(cw->dev, sba, 0, Odump);
|
|
if(chatty)
|
|
print("->%lld (->%lld)\n", (Wideoff)sba, (Wideoff)s->next);
|
|
|
|
putbuf(p);
|
|
|
|
/*
|
|
* final cache block
|
|
*/
|
|
p = getbuf(cw->cdev, CACHE_ADDR, Brd|Bmod|Bimm|Bres);
|
|
h = (Cache*)p->iobuf;
|
|
h->fsize = cw->fsize;
|
|
h->roraddr = roa;
|
|
h->sbaddr = sba;
|
|
putbuf(p);
|
|
|
|
rewalk(cw);
|
|
sync("all done");
|
|
|
|
if(chatty){
|
|
print("%lld blocks queued for worm\n", (Wideoff)cw->ndump);
|
|
print("%lld falsehits\n", (Wideoff)cw->falsehits);
|
|
}
|
|
cw->nodump = 0;
|
|
|
|
/*
|
|
* extend all of the locks
|
|
*/
|
|
tim = toytime() - tim;
|
|
for(i=0; i<NTLOCK; i++)
|
|
if(tlocks[i].time > 0)
|
|
tlocks[i].time += tim;
|
|
|
|
wunlock(&mainlock);
|
|
nextdump(time(nil));
|
|
return;
|
|
|
|
bad:
|
|
panic("dump: bad");
|
|
}
|
|
|
|
void
|
|
mvstates(Device *dev, int s1, int s2, int side)
|
|
{
|
|
Iobuf *p, *cb;
|
|
Cache *h;
|
|
Bucket *b;
|
|
Centry *c, *ce;
|
|
Off m, lo, hi, msize, maddr;
|
|
Cw *cw;
|
|
|
|
cw = dev->private;
|
|
lo = 0;
|
|
hi = lo + devsize(dev->cw.w); /* size of all sides totalled */
|
|
if(side >= 0) {
|
|
/* operate on only a single disc side */
|
|
Sidestarts ss;
|
|
|
|
wormsidestarts(dev, side, &ss);
|
|
lo = ss.sstart;
|
|
hi = ss.s1start;
|
|
}
|
|
cb = getbuf(cw->cdev, CACHE_ADDR, Brd|Bres);
|
|
if(!cb || checktag(cb, Tcache, QPSUPER))
|
|
panic("cwstats: checktag c bucket");
|
|
h = (Cache*)cb->iobuf;
|
|
msize = h->msize;
|
|
maddr = h->maddr;
|
|
putbuf(cb);
|
|
|
|
for(m=0; m<msize; m++) {
|
|
p = getbuf(cw->cdev, maddr + m/BKPERBLK, Brd|Bmod);
|
|
if(!p || checktag(p, Tbuck, maddr + m/BKPERBLK))
|
|
panic("cwtest: checktag c bucket");
|
|
b = (Bucket*)p->iobuf + m%BKPERBLK;
|
|
ce = b->entry + CEPERBK;
|
|
for(c=b->entry; c<ce; c++)
|
|
if(c->state == s1 && c->waddr >= lo && c->waddr < hi)
|
|
c->state = s2;
|
|
putbuf(p);
|
|
}
|
|
}
|
|
|
|
void
|
|
prchain(Device *dev, Off m, int flg)
|
|
{
|
|
Iobuf *p;
|
|
Superb *s;
|
|
|
|
if(m == 0) {
|
|
if(flg)
|
|
m = cwsaddr(dev);
|
|
else
|
|
m = getstartsb(dev);
|
|
}
|
|
p = getbuf(devnone, Cwxx2, 0);
|
|
s = (Superb*)p->iobuf;
|
|
for(;;) {
|
|
memset(p->iobuf, 0, RBUFSIZE);
|
|
if(devread(WDEV(dev), m, p->iobuf) ||
|
|
checktag(p, Tsuper, QPSUPER))
|
|
break;
|
|
if(flg) {
|
|
print("dump %lld is good; %lld prev\n", (Wideoff)m,
|
|
(Wideoff)s->last);
|
|
print("\t%lld cwroot; %lld roroot\n",
|
|
(Wideoff)s->cwraddr, (Wideoff)s->roraddr);
|
|
if(m <= s->last)
|
|
break;
|
|
m = s->last;
|
|
} else {
|
|
print("dump %lld is good; %lld next\n", (Wideoff)m,
|
|
(Wideoff)s->next);
|
|
print("\t%lld cwroot; %lld roroot\n",
|
|
(Wideoff)s->cwraddr, (Wideoff)s->roraddr);
|
|
if(m >= s->next)
|
|
break;
|
|
m = s->next;
|
|
}
|
|
}
|
|
putbuf(p);
|
|
}
|
|
|
|
void
|
|
touchsb(Device *dev)
|
|
{
|
|
Iobuf *p;
|
|
Off m;
|
|
|
|
m = cwsaddr(dev);
|
|
p = getbuf(devnone, Cwxx2, 0);
|
|
|
|
memset(p->iobuf, 0, RBUFSIZE);
|
|
if(devread(WDEV(dev), m, p->iobuf) ||
|
|
checktag(p, Tsuper, QPSUPER))
|
|
fprint(2, "%Z block %lld WORM SUPER BLOCK READ FAILED\n",
|
|
WDEV(dev), (Wideoff)m);
|
|
else if(chatty)
|
|
print("%Z touch superblock %lld\n", WDEV(dev), (Wideoff)m);
|
|
putbuf(p);
|
|
}
|
|
|
|
void
|
|
storesb(Device *dev, Off last, int doit)
|
|
{
|
|
Iobuf *ph, *ps;
|
|
Cache *h;
|
|
Superb *s;
|
|
Off sbaddr, qidgen;
|
|
|
|
sbaddr = cwsaddr(dev);
|
|
|
|
ps = getbuf(devnone, Cwxx2, 0);
|
|
if(!ps) {
|
|
fprint(2, "sbstore: getbuf\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* try to read last sb
|
|
*/
|
|
memset(ps->iobuf, 0, RBUFSIZE);
|
|
if(devread(WDEV(dev), last, ps->iobuf) ||
|
|
checktag(ps, Tsuper, QPSUPER))
|
|
print("read last failed\n");
|
|
else
|
|
print("read last succeeded\n");
|
|
|
|
s = (Superb*)ps->iobuf;
|
|
qidgen = s->qidgen;
|
|
if(qidgen == 0)
|
|
qidgen = 0x31415;
|
|
qidgen += 1000;
|
|
if(s->next != sbaddr)
|
|
print("next(last) is not sbaddr %lld %lld\n",
|
|
(Wideoff)s->next, (Wideoff)sbaddr);
|
|
else
|
|
print("next(last) is sbaddr\n");
|
|
|
|
/*
|
|
* read cached superblock
|
|
*/
|
|
ph = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bres);
|
|
if(!ph || checktag(ph, Tcache, QPSUPER)) {
|
|
print("cwstats: checktag c bucket\n");
|
|
if(ph)
|
|
putbuf(ph);
|
|
putbuf(ps);
|
|
return;
|
|
} else
|
|
print("read cached sb succeeded\n");
|
|
|
|
h = (Cache*)ph->iobuf;
|
|
|
|
memset(ps->iobuf, 0, RBUFSIZE);
|
|
settag(ps, Tsuper, QPSUPER);
|
|
ps->flags = 0;
|
|
s = (Superb*)ps->iobuf;
|
|
|
|
s->cwraddr = h->cwraddr;
|
|
s->roraddr = h->roraddr;
|
|
s->fsize = h->fsize;
|
|
s->fstart = 2;
|
|
s->last = last;
|
|
s->next = h->roraddr+1;
|
|
|
|
s->qidgen = qidgen;
|
|
putbuf(ph);
|
|
|
|
if(s->fsize-1 != s->next ||
|
|
s->fsize-2 != s->roraddr ||
|
|
s->fsize-5 != s->cwraddr) {
|
|
print("addrs not in relationship %lld %lld %lld %lld\n",
|
|
(Wideoff)s->cwraddr, (Wideoff)s->roraddr,
|
|
(Wideoff)s->next, (Wideoff)s->fsize);
|
|
putbuf(ps);
|
|
return;
|
|
} else
|
|
print("addresses in relation\n");
|
|
|
|
if(doit)
|
|
if(devwrite(WDEV(dev), sbaddr, ps->iobuf))
|
|
print("%Z block %lld WORM SUPER BLOCK WRITE FAILED\n",
|
|
WDEV(dev), (Wideoff)sbaddr);
|
|
ps->flags = 0;
|
|
putbuf(ps);
|
|
}
|
|
|
|
void
|
|
savecache(Device *dev)
|
|
{
|
|
Iobuf *p, *cb;
|
|
Cache *h;
|
|
Bucket *b;
|
|
Centry *c, *ce;
|
|
long n, left;
|
|
Off m, maddr, msize, *longp, nbyte;
|
|
Device *cdev;
|
|
|
|
if(walkto("/adm/cache") || con_open(FID2, OWRITE|OTRUNC)) {
|
|
fprint(2, "cant open /adm/cache\n");
|
|
return;
|
|
}
|
|
cdev = CDEV(dev);
|
|
cb = getbuf(cdev, CACHE_ADDR, Brd|Bres);
|
|
if(!cb || checktag(cb, Tcache, QPSUPER))
|
|
panic("savecache: checktag c bucket");
|
|
h = (Cache*)cb->iobuf;
|
|
msize = h->msize;
|
|
maddr = h->maddr;
|
|
putbuf(cb);
|
|
|
|
n = BUFSIZE; /* calculate write size */
|
|
if(n > MAXDAT)
|
|
n = MAXDAT;
|
|
|
|
cb = getbuf(devnone, Cwxx4, 0);
|
|
longp = (Off *)cb->iobuf;
|
|
left = n/sizeof(Off);
|
|
cons.offset = 0;
|
|
|
|
for(m=0; m<msize; m++) {
|
|
if(left < BKPERBLK) {
|
|
nbyte = (n/sizeof(Off) - left) * sizeof(Off);
|
|
con_write(FID2, cb->iobuf, cons.offset, nbyte);
|
|
cons.offset += nbyte;
|
|
longp = (Off *)cb->iobuf;
|
|
left = n/sizeof(Off);
|
|
}
|
|
p = getbuf(cdev, maddr + m/BKPERBLK, Brd);
|
|
if(!p || checktag(p, Tbuck, maddr + m/BKPERBLK))
|
|
panic("cwtest: checktag c bucket");
|
|
b = (Bucket*)p->iobuf + m%BKPERBLK;
|
|
ce = b->entry + CEPERBK;
|
|
for(c = b->entry; c < ce; c++)
|
|
if(c->state == Cread) {
|
|
*longp++ = c->waddr;
|
|
left--;
|
|
}
|
|
putbuf(p);
|
|
}
|
|
nbyte = (n/sizeof(Off) - left) * sizeof(Off);
|
|
con_write(FID2, cb->iobuf, cons.offset, nbyte);
|
|
putbuf(cb);
|
|
}
|
|
|
|
void
|
|
loadcache(Device *dev, int dskno)
|
|
{
|
|
Iobuf *p, *cb;
|
|
Off m, nbyte, *longp, count;
|
|
Sidestarts ss;
|
|
|
|
if(walkto("/adm/cache") || con_open(FID2, OREAD)) {
|
|
fprint(2, "cant open /adm/cache\n");
|
|
return;
|
|
}
|
|
|
|
cb = getbuf(devnone, Cwxx4, 0);
|
|
cons.offset = 0;
|
|
count = 0;
|
|
|
|
if (dskno >= 0)
|
|
wormsidestarts(dev, dskno, &ss);
|
|
for(;;) {
|
|
memset(cb->iobuf, 0, BUFSIZE);
|
|
nbyte = con_read(FID2, cb->iobuf, cons.offset, 100) / sizeof(Off);
|
|
if(nbyte <= 0)
|
|
break;
|
|
cons.offset += nbyte * sizeof(Off);
|
|
longp = (Off *)cb->iobuf;
|
|
while(nbyte > 0) {
|
|
m = *longp++;
|
|
nbyte--;
|
|
if(m == 0)
|
|
continue;
|
|
/* if given a diskno, restrict to just that disc side */
|
|
if(dskno < 0 || m >= ss.sstart && m < ss.s1start) {
|
|
p = getbuf(dev, m, Brd);
|
|
if(p)
|
|
putbuf(p);
|
|
count++;
|
|
}
|
|
}
|
|
}
|
|
putbuf(cb);
|
|
print("%lld blocks loaded from worm %d\n", (Wideoff)count, dskno);
|
|
}
|
|
|
|
void
|
|
morecache(Device *dev, int dskno, Off size)
|
|
{
|
|
Iobuf *p;
|
|
Off m, ml, mh, mm, count;
|
|
Cache *h;
|
|
Sidestarts ss;
|
|
|
|
p = getbuf(CDEV(dev), CACHE_ADDR, Brd|Bres);
|
|
if(!p || checktag(p, Tcache, QPSUPER))
|
|
panic("savecache: checktag c bucket");
|
|
h = (Cache*)p->iobuf;
|
|
mm = h->wmax;
|
|
putbuf(p);
|
|
|
|
wormsidestarts(dev, dskno, &ss);
|
|
ml = ss.sstart; /* start at beginning of disc side #dskno */
|
|
mh = ml + size;
|
|
if(mh > mm) {
|
|
mh = mm;
|
|
print("limited to %lld\n", (Wideoff)mh-ml);
|
|
}
|
|
|
|
count = 0;
|
|
for(m=ml; m < mh; m++) {
|
|
p = getbuf(dev, m, Brd);
|
|
if(p)
|
|
putbuf(p);
|
|
count++;
|
|
}
|
|
print("%lld blocks loaded from worm %d\n", (Wideoff)count, dskno);
|
|
}
|
|
|
|
void
|
|
blockcmp(Device *dev, Off wa, Off ca)
|
|
{
|
|
Iobuf *p1, *p2;
|
|
int i, c;
|
|
|
|
p1 = getbuf(WDEV(dev), wa, Brd);
|
|
if(!p1) {
|
|
fprint(2, "blockcmp: wdev error\n");
|
|
return;
|
|
}
|
|
|
|
p2 = getbuf(CDEV(dev), ca, Brd);
|
|
if(!p2) {
|
|
fprint(2, "blockcmp: cdev error\n");
|
|
putbuf(p1);
|
|
return;
|
|
}
|
|
|
|
c = 0;
|
|
for(i=0; i<RBUFSIZE; i++)
|
|
if(p1->iobuf[i] != p2->iobuf[i]) {
|
|
print("%4d: %.2x %.2x\n",
|
|
i,
|
|
p1->iobuf[i]&0xff,
|
|
p2->iobuf[i]&0xff);
|
|
c++;
|
|
if(c >= 10)
|
|
break;
|
|
}
|
|
|
|
putbuf(p1);
|
|
putbuf(p2);
|
|
}
|
|
|
|
void
|
|
wblock(Device *dev, Off addr)
|
|
{
|
|
Iobuf *p1;
|
|
int i;
|
|
|
|
p1 = getbuf(dev, addr, Brd);
|
|
if(p1) {
|
|
i = devwrite(WDEV(dev), addr, p1->iobuf);
|
|
print("i = %d\n", i);
|
|
putbuf(p1);
|
|
}
|
|
}
|
|
|
|
void
|
|
cwtest(Device*)
|
|
{
|
|
}
|
|
|
|
#ifdef XXX
|
|
/* garbage to change sb size
|
|
* probably will need it someday
|
|
*/
|
|
fsz = number(0, 0, 10);
|
|
count = 0;
|
|
if(fsz == number(0, -1, 10))
|
|
count = -1; /* really do it */
|
|
print("fsize = %ld\n", fsz);
|
|
cdev = CDEV(dev);
|
|
cb = getbuf(cdev, CACHE_ADDR, Brd|Bres);
|
|
if(!cb || checktag(cb, Tcache, QPSUPER))
|
|
panic("cwstats: checktag c bucket");
|
|
h = (Cache*)cb->iobuf;
|
|
for(m=0; m<h->msize; m++) {
|
|
p = getbuf(cdev, h->maddr + m/BKPERBLK, Brd|Bmod);
|
|
if(!p || checktag(p, Tbuck, h->maddr + m/BKPERBLK))
|
|
panic("cwtest: checktag c bucket");
|
|
b = (Bucket*)p->iobuf + m%BKPERBLK;
|
|
ce = b->entry + CEPERBK;
|
|
for(c=b->entry; c<ce; c++) {
|
|
if(c->waddr < fsz)
|
|
continue;
|
|
if(count < 0) {
|
|
c->state = Cnone;
|
|
continue;
|
|
}
|
|
if(c->state != Cdirty)
|
|
count++;
|
|
}
|
|
putbuf(p);
|
|
}
|
|
if(count < 0) {
|
|
print("old cache hsize = %ld\n", h->fsize);
|
|
h->fsize = fsz;
|
|
cb->flags |= Bmod;
|
|
p = getbuf(dev, h->sbaddr, Brd|Bmod);
|
|
s = (Superb*)p->iobuf;
|
|
print("old super hsize = %ld\n", s->fsize);
|
|
s->fsize = fsz;
|
|
putbuf(p);
|
|
}
|
|
putbuf(cb);
|
|
print("count = %lld\n", (Wideoff)count);
|
|
#endif
|
|
|
|
int
|
|
convstate(char *name)
|
|
{
|
|
int i;
|
|
|
|
for(i=0; i<nelem(cwnames); i++)
|
|
if(cwnames[i])
|
|
if(strcmp(cwnames[i], name) == 0)
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
searchtag(Device *d, Off a, int tag, int n)
|
|
{
|
|
Iobuf *p;
|
|
Tag *t;
|
|
int i;
|
|
|
|
if(a == 0)
|
|
a = getstartsb(d);
|
|
p = getbuf(devnone, Cwxx2, 0);
|
|
t = (Tag*)(p->iobuf+BUFSIZE);
|
|
for(i=0; i<n; i++) {
|
|
memset(p->iobuf, 0, RBUFSIZE);
|
|
if(devread(WDEV(d), a+i, p->iobuf)) {
|
|
if(n == 1000)
|
|
break;
|
|
continue;
|
|
}
|
|
if(t->tag == tag) {
|
|
print("tag %d found at %Z %lld\n", tag, d, (Wideoff)a+i);
|
|
break;
|
|
}
|
|
}
|
|
putbuf(p);
|
|
}
|
|
|
|
void
|
|
cmd_cwcmd(int argc, char *argv[])
|
|
{
|
|
Device *dev;
|
|
char *arg;
|
|
char str[28];
|
|
Off s1, s2, a, b, n;
|
|
Cw *cw;
|
|
|
|
if(argc <= 1) {
|
|
print("\tcwcmd mvstate state1 state2 [platter]\n");
|
|
print("\tcwcmd prchain [start] [bakflg]\n");
|
|
print("\tcwcmd searchtag [start] [tag] [blocks]\n");
|
|
print("\tcwcmd touchsb\n");
|
|
print("\tcwcmd savecache\n");
|
|
print("\tcwcmd loadcache [dskno]\n");
|
|
print("\tcwcmd morecache dskno [count]\n");
|
|
print("\tcwcmd blockcmp wbno cbno\n");
|
|
print("\tcwcmd startdump [01]\n");
|
|
print("\tcwcmd acct\n");
|
|
print("\tcwcmd clearacct\n");
|
|
return;
|
|
}
|
|
arg = argv[1];
|
|
|
|
/*
|
|
* items not depend on a cw filesystem
|
|
*/
|
|
if(strcmp(arg, "acct") == 0) {
|
|
for(a=0; a<nelem(growacct); a++) {
|
|
b = growacct[a];
|
|
if(b) {
|
|
uidtostr(str, a, 1);
|
|
print("%10lld %s\n",
|
|
((Wideoff)b*ADDFREE*RBUFSIZE+500000)/1000000,
|
|
str);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
if(strcmp(arg, "clearacct") == 0) {
|
|
memset(growacct, 0, sizeof(growacct));
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* items depend on cw filesystem
|
|
*/
|
|
dev = cons.curfs->dev;
|
|
if(dev == 0 || dev->type != Devcw || dev->private == 0) {
|
|
print("cfs not a cw filesystem: %Z\n", dev);
|
|
return;
|
|
}
|
|
cw = dev->private;
|
|
if(strcmp(arg, "searchtag") == 0) {
|
|
a = 0;
|
|
if(argc > 2)
|
|
a = number(argv[2], 0, 10);
|
|
b = Tsuper;
|
|
if(argc > 3)
|
|
b = number(argv[3], 0, 10);
|
|
n = 1000;
|
|
if(argc > 4)
|
|
n = number(argv[4], 0, 10);
|
|
searchtag(dev, a, b, n);
|
|
} else if(strcmp(arg, "mvstate") == 0) {
|
|
if(argc < 4)
|
|
goto bad;
|
|
s1 = convstate(argv[2]);
|
|
s2 = convstate(argv[3]);
|
|
if(s1 < 0 || s2 < 0)
|
|
goto bad;
|
|
a = -1;
|
|
if(argc > 4)
|
|
a = number(argv[4], 0, 10);
|
|
mvstates(dev, s1, s2, a);
|
|
return;
|
|
bad:
|
|
print("cwcmd mvstate: bad args\n");
|
|
} else if(strcmp(arg, "prchain") == 0) {
|
|
a = 0;
|
|
if(argc > 2)
|
|
a = number(argv[2], 0, 10);
|
|
s1 = 0;
|
|
if(argc > 3)
|
|
s1 = number(argv[3], 0, 10);
|
|
prchain(dev, a, s1);
|
|
} else if(strcmp(arg, "touchsb") == 0)
|
|
touchsb(dev);
|
|
else if(strcmp(arg, "savecache") == 0)
|
|
savecache(dev);
|
|
else if(strcmp(arg, "loadcache") == 0) {
|
|
s1 = -1;
|
|
if(argc > 2)
|
|
s1 = number(argv[2], 0, 10);
|
|
loadcache(dev, s1);
|
|
} else if(strcmp(arg, "morecache") == 0) {
|
|
if(argc <= 2) {
|
|
print("arg count\n");
|
|
return;
|
|
}
|
|
s1 = number(argv[2], 0, 10);
|
|
if(argc > 3)
|
|
s2 = number(argv[3], 0, 10);
|
|
else
|
|
s2 = wormsizeside(dev, s1); /* default to 1 disc side */
|
|
morecache(dev, s1, s2);
|
|
} else if(strcmp(arg, "blockcmp") == 0) {
|
|
if(argc < 4) {
|
|
print("cannot arg count\n");
|
|
return;
|
|
}
|
|
s1 = number(argv[2], 0, 10);
|
|
s2 = number(argv[3], 0, 10);
|
|
blockcmp(dev, s1, s2);
|
|
} else if(strcmp(arg, "startdump") == 0) {
|
|
if(argc > 2)
|
|
cw->nodump = number(argv[2], 0, 10);
|
|
cw->nodump = !cw->nodump;
|
|
if(cw->nodump)
|
|
print("dump stopped\n");
|
|
else
|
|
print("dump allowed\n");
|
|
} else if(strcmp(arg, "allflag") == 0) {
|
|
if(argc > 2)
|
|
cw->allflag = number(argv[2], 0, 10);
|
|
else
|
|
cw->allflag = !cw->allflag;
|
|
print("allflag = %d; falsehits = %lld\n",
|
|
cw->allflag, (Wideoff)cw->falsehits);
|
|
} else if(strcmp(arg, "storesb") == 0) {
|
|
a = 4168344;
|
|
b = 0;
|
|
if(argc > 2)
|
|
a = number(argv[2], 4168344, 10);
|
|
if(argc > 3)
|
|
b = number(argv[3], 0, 10);
|
|
storesb(dev, a, b);
|
|
} else if(strcmp(arg, "test") == 0)
|
|
cwtest(dev);
|
|
else
|
|
print("unknown cwcmd %s\n", arg);
|
|
}
|