idank wrote: > Hi all, > I was running fstest (http://www.tuxera.com/community/posix-test-suite/) on btrfs. Only one test failed, and I believe it to be a bug in btrfs. The scenario is as follows: > * crate a file. > * note its times with stat. > * sleep a few seconds > * call truncate() on the file (not ftruncate(). ftruncate() works). > * sync > * note the file's times again with stat. > expected result: ctime and mtime are greater. > actual result: ctime and mtime remain unchanged. > > Example: I followed your example, but got the expected result: [root@lizf pjd-fstest-20090130-RC]# stat ctime_test File: "ctime_test" Size: 0 Blocks: 0 IO Block: 4096 普通空文件 Device: 1bh/27d Inode: 1589980 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-01-06 10:27:53.900570365 +0800 Modify: 2012-01-06 10:27:53.900570365 +0800 Change: 2012-01-06 10:27:53.900570365 +0800 [root@lizf pjd-fstest-20090130-RC]# ./fstest truncate ctime_test 200 0 [root@lizf pjd-fstest-20090130-RC]# sleep 2 [root@lizf pjd-fstest-20090130-RC]# stat ctime_test File: "ctime_test" Size: 200 Blocks: 0 IO Block: 4096 普通文件 Device: 1bh/27d Inode: 1589980 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-01-06 10:27:53.900570365 +0800 Modify: 2012-01-06 10:28:12.238569720 +0800 Change: 2012-01-06 10:28:12.238569720 +0800 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
