afs: Dump bad status record (888b3384) · Commits · 戴 / test

fs/afs/fsclient.c

+35 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,26 @@ static void xdr_decode_AFSFid(const __be32 *_bp, struct afs_fid fid)
		*_bp = bp;
		}

		/*
		* Dump a bad file status record.
		*/
		static void xdr_dump_bad(const __be32 *bp)
		{
		__be32 x[4];
		int i;

		pr_notice("AFS XDR: Bad status record\n");
		for (i = 0; i < 5 * 4 * 4; i += 16) {
		memcpy(x, bp, 16);
		bp += 4;
		pr_notice("%03x: %08x %08x %08x %08x\n",
		i, ntohl(x[0]), ntohl(x[1]), ntohl(x[2]), ntohl(x[3]));
		}

		memcpy(x, bp, 4);
		pr_notice("0x50: %08x\n", ntohl(x[0]));
		}

		/*
		* decode an AFSFetchStatus block
		*/
		@@ -97,6 +117,20 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
		EXTRACT(status->abort_code); /* spare 4 */
		*_bp = bp;

		switch (status->type) {
		case AFS_FTYPE_FILE:
		case AFS_FTYPE_DIR:
		case AFS_FTYPE_SYMLINK:
		break;
		case AFS_FTYPE_INVALID:
		if (status->abort_code != 0)
		goto out;
		/* Fall through */
		default:
		xdr_dump_bad(bp - 2);
		goto out;
		}

		if (size != status->size) {
		status->size = size;
		changed \|= true;
		@@ -145,6 +179,7 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp,
		status->data_version = data_version;
		}

		out:
		if (vnode)
		write_sequnlock(&vnode->cb_lock);
		}