1 TEST SUITE: 2 3 The directory ext4-new-features contains the tests related to the ext4 4 filesystem's new features. 5 6 Ext4 is an advanced level of the ext3 filesystem which incorporates scalability 7 and reliability enhancements for supporting large filesystems(64 bit) in keeping 8 with increasing disk capacities and state-of-the-art feature requirements. More 9 extensive information of ext4 can be found at the ext4 wiki site at the URL: 10 http://ext4.wiki.kernel.org 11 12 There are total 117 testcases for ext4 new features test that have been added. 13 Now, these testcases can test multi-block alloc/delayed alloc, inode version 14 field on disk, journal checksumming, nanosec timestamps, online defrag, persist 15 prealloc, subdirectory limit and uninit groups of ext4. 16 The detail information of ext4 new features can be found at the URL: 17 http://ext4.wiki.kernel.org/index.php/New_ext4_features 18 19 20 TESTS AIM: 21 22 The aim of the tests is to test ext4 new features. 23 24 25 TEST STEPS: 26 # cd LTPROOT/testcases/kernel/fs/ext4-new-features 27 # make 28 # make install 29 # cd LTPROOT 30 # ./runltp -f fs_ext4 -z 'big unmounted block device partition' 31 32 33 NOTE: 34 35 1. This test can be run by root only. 36 37 2. These tests need a big unmounted block device partition. You MUST run runltp 38 with "-z" option to specify such a big block device, if not, these tests 39 will exit with TCONF. 40 41 Be CAREFUL the data on the specified partition would be DESTROYED. 42 43 The recommended size of partition is between 5G and 10G. If the partition is 44 too big, the test will run for a long time, which is unnecessary. 45 46 3. Before starting test ext4 new features, please check whether ext4 filesystem 47 is compiled into the kernel or not, and the kernel version is *2.6.31* or 48 above. 49 50 4. A snapshot of config file options is given below: 51 ONFIG_EXT4_FS=y 52 CONFIG_EXT4DEV_COMPAT=y 53 CONFIG_EXT4_FS_XATTR=y 54 CONFIG_EXT4_FS_POSIX_ACL=y 55 CONFIG_EXT4_FS_SECURITY=y 56 57 5. Beside that, the following packages are necessary: 58 e2fsprogs 59 (http://www.rpmfind.net/linux/rpm2html/search.php?query=e2fsprogs) 60 e2fsprogs-devel 61 (http://www.rpmfind.net/linux/rpm2html/search.php?query=e2fsprogs-devel) 62 e2fsprogs-libs 63 (http://www.rpmfind.net/linux/rpm2html/search.php?query=e2fsprogs-libs) 64 and the version of these packages should be 1.41.4 or above, otherwise the 65 test will fail. 66 67 68 FILES DESCRIPTION: 69 70 ext4-delalloc-mballoc 71 --------------------- 72 Directory containing the shell script which is used to test multi-block 73 allocation and delayed allocation of ext4. 74 75 ext4-ffsb-config 76 ---------------- 77 Directory containing the config of ffsb for test. 78 79 ext4-inode-version 80 ------------------ 81 Directory containing the shell script which is used to test inode version field 82 on disk of ext4. 83 84 ext4-journal-checksum 85 --------------------- 86 Directory containing the shell script which is used to test journal checksumming 87 of ext4. 88 89 ext4-nsec-timestamps 90 -------------------- 91 Directory containing the shell script which is used to test nanosec timestamps 92 of ext4. 93 94 ext4-online-defrag 95 ------------------ 96 Directory containing the shell script which is used to test online defrag 97 feature of ext4. 98 99 ext4-persist-prealloc 100 --------------------- 101 Directory containing the shell script which is used to test persist prealloc 102 feature of ext4. 103 104 ext4-subdir-limit 105 ----------------- 106 Directory containing the shell script which is used to test subdirectory limit 107 of ext4. According to the kernel documentation, we create more than 32000 108 subdirectorys on the ext4 filesystem. 109 110 ext4-uninit-groups 111 ------------------ 112 Directory containing the shell script which is used to test uninitialized groups 113 feature of ext4. 114 115 ext4_funcs.sh 116 ------------- 117 This script contains some functions for ext4 new features test script. 118 such as: ext4_setup, ext4_cleanup 119 120 Makefile 121 -------- 122 Each directory in this directory has its usual makefile, it is for its 123 directory. 124 125 README 126 ------ 127 The one you have gone through. 128
