From: "Jose R. Santos" Subject: [Take2 PATCH 06/10][e2fsprogs] Add 64-bit alloc interface. Date: Wed, 21 May 2008 12:54:04 -0500 Message-ID: <20080521175404.18810.86928.stgit@gara> References: <20080521175325.18810.25160.stgit@gara> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: "Jose R. Santos" , "Theodore Ts'o" , linux-ext4@vger.kernel.org Return-path: Received: from e32.co.us.ibm.com ([32.97.110.150]:45507 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936480AbYEURyJ (ORCPT ); Wed, 21 May 2008 13:54:09 -0400 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e32.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id m4LHobLt023932 for ; Wed, 21 May 2008 13:50:37 -0400 Received: from d03av03.boulder.ibm.com (d03av03.boulder.ibm.com [9.17.195.169]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m4LHs5JZ068220 for ; Wed, 21 May 2008 11:54:06 -0600 Received: from d03av03.boulder.ibm.com (loopback [127.0.0.1]) by d03av03.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m4LHs5MN022276 for ; Wed, 21 May 2008 11:54:05 -0600 In-Reply-To: <20080521175325.18810.25160.stgit@gara> Sender: linux-ext4-owner@vger.kernel.org List-ID: From: Jose R. Santos Add 64-bit alloc interface. Add new ext2fs_new_block2(), ext2fs_get_free_blocks2() and ext2fs_alloc_block2() that take and return blk64_t. Signed-off-by: Jose R. Santos -- lib/ext2fs/alloc.c | 59 +++++++++++++++++++++++++++++++++++++++++---------- lib/ext2fs/ext2fs.h | 8 +++++++ 2 files changed, 55 insertions(+), 12 deletions(-) diff --git a/lib/ext2fs/alloc.c b/lib/ext2fs/alloc.c index 65f3ea1..15d1039 100644 --- a/lib/ext2fs/alloc.c +++ b/lib/ext2fs/alloc.c @@ -73,10 +73,10 @@ errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, * Stupid algorithm --- we now just search forward starting from the * goal. Should put in a smarter one someday.... */ -errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, - ext2fs_block_bitmap map, blk_t *ret) +errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal, + ext2fs_block_bitmap map, blk64_t *ret) { - blk_t i; + blk64_t i; EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); @@ -88,6 +88,7 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, goal = fs->super->s_first_data_block; i = goal; do { + /* FIXME-64 */ if (!ext2fs_fast_test_block_bitmap(map, i)) { *ret = i; return 0; @@ -99,15 +100,26 @@ errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, return EXT2_ET_BLOCK_ALLOC_FAIL; } +errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, + ext2fs_block_bitmap map, blk_t *ret) +{ + errcode_t retval; + blk64_t val; + retval = ext2fs_new_block2(fs, goal, map, &val); + if (!retval) + *ret = (blk_t) val; + return retval; +} + /* * This function zeros out the allocated block, and updates all of the * appropriate filesystem records. */ -errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, - char *block_buf, blk_t *ret) +errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal, + char *block_buf, blk64_t *ret) { errcode_t retval; - blk_t block; + blk64_t block; char *buf = 0; if (!block_buf) { @@ -119,20 +131,21 @@ errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, memset(block_buf, 0, fs->blocksize); if (!fs->block_map) { + /* FIXME-64 */ retval = ext2fs_read_block_bitmap(fs); if (retval) goto fail; } - retval = ext2fs_new_block(fs, goal, 0, &block); + retval = ext2fs_new_block2(fs, goal, 0, &block); if (retval) goto fail; - retval = io_channel_write_blk(fs->io, block, 1, block_buf); + retval = io_channel_write_blk64(fs->io, block, 1, block_buf); if (retval) goto fail; - ext2fs_block_alloc_stats(fs, block, +1); + ext2fs_block_alloc_stats2(fs, block, 1); *ret = block; fail: @@ -141,10 +154,21 @@ fail: return retval; } -errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish, - int num, ext2fs_block_bitmap map, blk_t *ret) +errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, + char *block_buf, blk_t *ret) +{ + errcode_t retval; + blk64_t val; + retval = ext2fs_alloc_block2(fs, goal, block_buf, &val); + if (!retval) + *ret = (blk_t) val; + return retval; +} + +errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start, blk64_t finish, + int num, ext2fs_block_bitmap map, blk64_t *ret) { - blk_t b = start; + blk64_t b = start; EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); @@ -161,6 +185,7 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish, do { if (b+num-1 > fs->super->s_blocks_count) b = fs->super->s_first_data_block; + /* FIXME-64 */ if (ext2fs_fast_test_block_bitmap_range(map, b, num)) { *ret = b; return 0; @@ -170,3 +195,13 @@ errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish, return EXT2_ET_BLOCK_ALLOC_FAIL; } +errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish, + int num, ext2fs_block_bitmap map, blk_t *ret) +{ + errcode_t retval; + blk64_t val; + retval = ext2fs_get_free_blocks2(fs, start, finish, num, map, &val); + if(!retval) + *ret = (blk_t) val; + return retval; +} diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h index de32dd4..00d1334 100644 --- a/lib/ext2fs/ext2fs.h +++ b/lib/ext2fs/ext2fs.h @@ -537,12 +537,20 @@ extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode, ext2fs_inode_bitmap map, ext2_ino_t *ret); extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal, ext2fs_block_bitmap map, blk_t *ret); +extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal, + ext2fs_block_bitmap map, blk64_t *ret); extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish, int num, ext2fs_block_bitmap map, blk_t *ret); +extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start, + blk64_t finish, int num, + ext2fs_block_bitmap map, + blk64_t *ret); extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal, char *block_buf, blk_t *ret); +extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal, + char *block_buf, blk64_t *ret); /* alloc_sb.c */ extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,