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Date: Sun, 9 Aug 2009 23:31:58 -0400 From: Theodore Ts'o <tytso@....edu> To: Ext4 Developers List <linux-ext4@...r.kernel.org> Cc: Andreas Dilger <adilger@....com>, Theodore Ts'o <tytso@....edu> Subject: [PATCH 6/6] libext2fs: Treat uninitialized parts of bitmaps as unallocated Signed-off-by: "Theodore Ts'o" <tytso@....edu> --- lib/ext2fs/rw_bitmaps.c | 4 +- tests/m_uninit/expect.1 | 48 +++++++++++++++++++++++----------------------- 2 files changed, 26 insertions(+), 26 deletions(-) diff --git a/lib/ext2fs/rw_bitmaps.c b/lib/ext2fs/rw_bitmaps.c index 341f834..56fcfd6 100644 --- a/lib/ext2fs/rw_bitmaps.c +++ b/lib/ext2fs/rw_bitmaps.c @@ -248,7 +248,7 @@ static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block) goto cleanup; } } else - memset(block_bitmap, 0xff, block_nbytes); + memset(block_bitmap, 0, block_nbytes); cnt = block_nbytes << 3; retval = ext2fs_set_block_bitmap_range(fs->block_map, blk_itr, cnt, block_bitmap); @@ -270,7 +270,7 @@ static errcode_t read_bitmaps(ext2_filsys fs, int do_inode, int do_block) goto cleanup; } } else - memset(inode_bitmap, 0xff, inode_nbytes); + memset(inode_bitmap, 0, inode_nbytes); cnt = inode_nbytes << 3; retval = ext2fs_set_inode_bitmap_range(fs->inode_map, ino_itr, cnt, inode_bitmap); diff --git a/tests/m_uninit/expect.1 b/tests/m_uninit/expect.1 index 549aced..67cd33d 100644 --- a/tests/m_uninit/expect.1 +++ b/tests/m_uninit/expect.1 @@ -71,13 +71,13 @@ Group 1: (Blocks 8193-16384) [INODE_UNINIT, ITABLE_ZEROED] Inode table at 8453-8708 (+260) 7676 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 8709-16384 - Free inodes: + Free inodes: 2049-4096 Group 2: (Blocks 16385-24576) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 16385 (+0), Inode bitmap at 16386 (+1) Inode table at 16387-16642 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 16385-24576 + Free inodes: 4097-6144 Group 3: (Blocks 24577-32768) [INODE_UNINIT, ITABLE_ZEROED] Backup superblock at 24577, Group descriptors at 24578-24578 Reserved GDT blocks at 24579-24834 @@ -85,13 +85,13 @@ Group 3: (Blocks 24577-32768) [INODE_UNINIT, ITABLE_ZEROED] Inode table at 24837-25092 (+260) 7676 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 25093-32768 - Free inodes: + Free inodes: 6145-8192 Group 4: (Blocks 32769-40960) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 32769 (+0), Inode bitmap at 32770 (+1) Inode table at 32771-33026 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 32769-40960 + Free inodes: 8193-10240 Group 5: (Blocks 40961-49152) [INODE_UNINIT, ITABLE_ZEROED] Backup superblock at 40961, Group descriptors at 40962-40962 Reserved GDT blocks at 40963-41218 @@ -99,13 +99,13 @@ Group 5: (Blocks 40961-49152) [INODE_UNINIT, ITABLE_ZEROED] Inode table at 41221-41476 (+260) 7676 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 41477-49152 - Free inodes: + Free inodes: 10241-12288 Group 6: (Blocks 49153-57344) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 49153 (+0), Inode bitmap at 49154 (+1) Inode table at 49155-49410 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 49153-57344 + Free inodes: 12289-14336 Group 7: (Blocks 57345-65536) [INODE_UNINIT, ITABLE_ZEROED] Backup superblock at 57345, Group descriptors at 57346-57346 Reserved GDT blocks at 57347-57602 @@ -113,13 +113,13 @@ Group 7: (Blocks 57345-65536) [INODE_UNINIT, ITABLE_ZEROED] Inode table at 57605-57860 (+260) 7676 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 57861-65536 - Free inodes: + Free inodes: 14337-16384 Group 8: (Blocks 65537-73728) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 65537 (+0), Inode bitmap at 65538 (+1) Inode table at 65539-65794 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 65537-73728 + Free inodes: 16385-18432 Group 9: (Blocks 73729-81920) [INODE_UNINIT, ITABLE_ZEROED] Backup superblock at 73729, Group descriptors at 73730-73730 Reserved GDT blocks at 73731-73986 @@ -127,40 +127,40 @@ Group 9: (Blocks 73729-81920) [INODE_UNINIT, ITABLE_ZEROED] Inode table at 73989-74244 (+260) 7676 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 74245-81920 - Free inodes: + Free inodes: 18433-20480 Group 10: (Blocks 81921-90112) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 81921 (+0), Inode bitmap at 81922 (+1) Inode table at 81923-82178 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 81921-90112 + Free inodes: 20481-22528 Group 11: (Blocks 90113-98304) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 90113 (+0), Inode bitmap at 90114 (+1) Inode table at 90115-90370 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 90113-98304 + Free inodes: 22529-24576 Group 12: (Blocks 98305-106496) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 98305 (+0), Inode bitmap at 98306 (+1) Inode table at 98307-98562 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 98305-106496 + Free inodes: 24577-26624 Group 13: (Blocks 106497-114688) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 106497 (+0), Inode bitmap at 106498 (+1) Inode table at 106499-106754 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 106497-114688 + Free inodes: 26625-28672 Group 14: (Blocks 114689-122880) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED] Block bitmap at 114689 (+0), Inode bitmap at 114690 (+1) Inode table at 114691-114946 (+2) 7934 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes - Free blocks: - Free inodes: + Free blocks: 114689-122880 + Free inodes: 28673-30720 Group 15: (Blocks 122881-131071) [INODE_UNINIT, ITABLE_ZEROED] Block bitmap at 122881 (+0), Inode bitmap at 122882 (+1) Inode table at 122883-123138 (+2) 7933 free blocks, 2048 free inodes, 0 directories, 2048 unused inodes Free blocks: 123139-131071 - Free inodes: + Free inodes: 30721-32768 -- 1.6.3.2.1.gb9f7d.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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