From patchwork Tue Oct 1 01:28:18 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Darrick Wong X-Patchwork-Id: 279294 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id A75C82C0084 for ; Tue, 1 Oct 2013 11:28:22 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755485Ab3JAB2W (ORCPT ); Mon, 30 Sep 2013 21:28:22 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:22594 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755105Ab3JAB2V (ORCPT ); Mon, 30 Sep 2013 21:28:21 -0400 Received: from acsinet21.oracle.com (acsinet21.oracle.com [141.146.126.237]) by aserp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id r911SKFD022123 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 1 Oct 2013 01:28:20 GMT Received: from aserz7021.oracle.com (aserz7021.oracle.com [141.146.126.230]) by acsinet21.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r911SJHY003882 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 1 Oct 2013 01:28:19 GMT Received: from abhmt115.oracle.com (abhmt115.oracle.com [141.146.116.67]) by aserz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id r911SJ8e003877; Tue, 1 Oct 2013 01:28:19 GMT Received: from localhost (/10.137.226.112) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 30 Sep 2013 18:28:19 -0700 Subject: [PATCH 15/31] e2fsck: Teach EA refcounting code to handle 48bit block addresses To: tytso@mit.edu, darrick.wong@oracle.com From: "Darrick J. Wong" Cc: linux-ext4@vger.kernel.org Date: Mon, 30 Sep 2013 18:28:18 -0700 Message-ID: <20131001012818.28415.49000.stgit@birch.djwong.org> In-Reply-To: <20131001012642.28415.89353.stgit@birch.djwong.org> References: <20131001012642.28415.89353.stgit@birch.djwong.org> User-Agent: StGit/0.15 MIME-Version: 1.0 X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org The extended attribute refcounting code only accepts blk_t, which is dangerous because EA blocks can exist at high addresses (> 2^32) as well. Therefore, widen the block fields to 64 bits. Signed-off-by: Darrick J. Wong --- e2fsck/e2fsck.h | 12 ++++++------ e2fsck/ea_refcount.c | 36 ++++++++++++++++++------------------ 2 files changed, 24 insertions(+), 24 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/e2fsck/e2fsck.h b/e2fsck/e2fsck.h index 13d70f1..f1df525 100644 --- a/e2fsck/e2fsck.h +++ b/e2fsck/e2fsck.h @@ -432,17 +432,17 @@ extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control); /* ea_refcount.c */ extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret); extern void ea_refcount_free(ext2_refcount_t refcount); -extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk, +extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk64_t blk, int *ret); extern errcode_t ea_refcount_increment(ext2_refcount_t refcount, - blk_t blk, int *ret); + blk64_t blk, int *ret); extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount, - blk_t blk, int *ret); + blk64_t blk, int *ret); extern errcode_t ea_refcount_store(ext2_refcount_t refcount, - blk_t blk, int count); -extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount); + blk64_t blk, int count); +extern blk64_t ext2fs_get_refcount_size(ext2_refcount_t refcount); extern void ea_refcount_intr_begin(ext2_refcount_t refcount); -extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret); +extern blk64_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret); /* ehandler.c */ extern const char *ehandler_operation(const char *op); diff --git a/e2fsck/ea_refcount.c b/e2fsck/ea_refcount.c index e66e636..bcce6a0 100644 --- a/e2fsck/ea_refcount.c +++ b/e2fsck/ea_refcount.c @@ -25,14 +25,14 @@ * checked, its bit is set in the block_ea_map bitmap. */ struct ea_refcount_el { - blk_t ea_blk; + blk64_t ea_blk; int ea_count; }; struct ea_refcount { - blk_t count; - blk_t size; - blk_t cursor; + blk64_t count; + blk64_t size; + blk64_t cursor; struct ea_refcount_el *list; }; @@ -111,11 +111,11 @@ static void refcount_collapse(ext2_refcount_t refcount) * specified position. */ static struct ea_refcount_el *insert_refcount_el(ext2_refcount_t refcount, - blk_t blk, int pos) + blk64_t blk, int pos) { struct ea_refcount_el *el; errcode_t retval; - blk_t new_size = 0; + blk64_t new_size = 0; int num; if (refcount->count >= refcount->size) { @@ -153,7 +153,7 @@ static struct ea_refcount_el *insert_refcount_el(ext2_refcount_t refcount, * and we can't find an entry, create one in the sorted list. */ static struct ea_refcount_el *get_refcount_el(ext2_refcount_t refcount, - blk_t blk, int create) + blk64_t blk, int create) { int low, high, mid; @@ -206,7 +206,7 @@ retry: return 0; } -errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk, +errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk64_t blk, int *ret) { struct ea_refcount_el *el; @@ -220,7 +220,7 @@ errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk, return 0; } -errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk_t blk, int *ret) +errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk64_t blk, int *ret) { struct ea_refcount_el *el; @@ -234,7 +234,7 @@ errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk_t blk, int *ret) return 0; } -errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk_t blk, int *ret) +errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk64_t blk, int *ret) { struct ea_refcount_el *el; @@ -249,7 +249,7 @@ errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk_t blk, int *ret) return 0; } -errcode_t ea_refcount_store(ext2_refcount_t refcount, blk_t blk, int count) +errcode_t ea_refcount_store(ext2_refcount_t refcount, blk64_t blk, int count) { struct ea_refcount_el *el; @@ -263,7 +263,7 @@ errcode_t ea_refcount_store(ext2_refcount_t refcount, blk_t blk, int count) return 0; } -blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount) +blk64_t ext2fs_get_refcount_size(ext2_refcount_t refcount) { if (!refcount) return 0; @@ -277,7 +277,7 @@ void ea_refcount_intr_begin(ext2_refcount_t refcount) } -blk_t ea_refcount_intr_next(ext2_refcount_t refcount, +blk64_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret) { struct ea_refcount_el *list; @@ -370,7 +370,7 @@ int main(int argc, char **argv) int i = 0; ext2_refcount_t refcount; int size, arg; - blk_t blk; + blk64_t blk; errcode_t retval; while (1) { @@ -394,7 +394,7 @@ int main(int argc, char **argv) printf("Freeing refcount\n"); break; case BCODE_STORE: - blk = (blk_t) bcode_program[i++]; + blk = (blk64_t) bcode_program[i++]; arg = bcode_program[i++]; printf("Storing blk %u with value %d\n", blk, arg); retval = ea_refcount_store(refcount, blk, arg); @@ -403,7 +403,7 @@ int main(int argc, char **argv) "while storing blk %u", blk); break; case BCODE_FETCH: - blk = (blk_t) bcode_program[i++]; + blk = (blk64_t) bcode_program[i++]; retval = ea_refcount_fetch(refcount, blk, &arg); if (retval) com_err("ea_refcount_fetch", retval, @@ -413,7 +413,7 @@ int main(int argc, char **argv) blk, arg); break; case BCODE_INCR: - blk = (blk_t) bcode_program[i++]; + blk = (blk64_t) bcode_program[i++]; retval = ea_refcount_increment(refcount, blk, &arg); if (retval) com_err("ea_refcount_increment", retval, @@ -423,7 +423,7 @@ int main(int argc, char **argv) blk, arg); break; case BCODE_DECR: - blk = (blk_t) bcode_program[i++]; + blk = (blk64_t) bcode_program[i++]; retval = ea_refcount_decrement(refcount, blk, &arg); if (retval) com_err("ea_refcount_decrement", retval,