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[PATCH] NFS: Add debugging code to NFSv4 readdir

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2005-06-22 17:16:39 +00:00
parent 6ebf3656fd
commit eadf4598e7
2 changed files with 23 additions and 0 deletions
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5
fs/nfs/nfs4proc.c
View File

@ -1722,6 +1722,10 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
}; };
int status; int status;
dprintk("%s: dentry = %s/%s, cookie = %Lu\n", __FUNCTION__,
dentry->d_parent->d_name.name,
dentry->d_name.name,
(unsigned long long)cookie);
lock_kernel(); lock_kernel();
nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args); nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
res.pgbase = args.pgbase; res.pgbase = args.pgbase;
@ -1729,6 +1733,7 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
if (status == 0) if (status == 0)
memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE); memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
unlock_kernel(); unlock_kernel();
dprintk("%s: returns %d\n", __FUNCTION__, status);
return status; return status;
} }

18
fs/nfs/nfs4xdr.c
View File

@ -1035,6 +1035,13 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
WRITE32(attrs[0] & readdir->bitmask[0]); WRITE32(attrs[0] & readdir->bitmask[0]);
WRITE32(attrs[1] & readdir->bitmask[1]); WRITE32(attrs[1] & readdir->bitmask[1]);
dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n",
__FUNCTION__,
(unsigned long long)readdir->cookie,
((u32 *)readdir->verifier.data)[0],
((u32 *)readdir->verifier.data)[1],
attrs[0] & readdir->bitmask[0],
attrs[1] & readdir->bitmask[1]);
/* set up reply kvec /* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status * toplevel_status + taglen + rescount + OP_PUTFH + status
@ -1043,6 +1050,9 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
readdir->pgbase, readdir->count); readdir->pgbase, readdir->count);
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
__FUNCTION__, replen, readdir->pages,
readdir->pgbase, readdir->count);
return 0; return 0;
} }
@ -3066,6 +3076,11 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
return status; return status;
READ_BUF(8); READ_BUF(8);
COPYMEM(readdir->verifier.data, 8); COPYMEM(readdir->verifier.data, 8);
dprintk("%s: verifier = 0x%x%x\n",
__FUNCTION__,
((u32 *)readdir->verifier.data)[0],
((u32 *)readdir->verifier.data)[1]);
hdrlen = (char *) p - (char *) iov->iov_base; hdrlen = (char *) p - (char *) iov->iov_base;
recvd = rcvbuf->len - hdrlen; recvd = rcvbuf->len - hdrlen;
@ -3080,12 +3095,14 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
for (nr = 0; *p++; nr++) { for (nr = 0; *p++; nr++) {
if (p + 3 > end) if (p + 3 > end)
goto short_pkt; goto short_pkt;
dprintk("cookie = %Lu, ", *((unsigned long long *)p));
p += 2; /* cookie */ p += 2; /* cookie */
len = ntohl(*p++); /* filename length */ len = ntohl(*p++); /* filename length */
if (len > NFS4_MAXNAMLEN) { if (len > NFS4_MAXNAMLEN) {
printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
goto err_unmap; goto err_unmap;
} }
dprintk("filename = %*s\n", len, (char *)p);
p += XDR_QUADLEN(len); p += XDR_QUADLEN(len);
if (p + 1 > end) if (p + 1 > end)
goto short_pkt; goto short_pkt;
@ -3105,6 +3122,7 @@ static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct n
kunmap_atomic(kaddr, KM_USER0); kunmap_atomic(kaddr, KM_USER0);
return 0; return 0;
short_pkt: short_pkt:
dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr);
entry[0] = entry[1] = 0; entry[0] = entry[1] = 0;
/* truncate listing ? */ /* truncate listing ? */
if (!nr) { if (!nr) {