On Sat, Nov 22, 2008 at 6:32 AM, Theodore Tso <tytso@xxxxxxx> wrote:> So the problem is that even if we were to add that enhancement to> ext4, there are lots of other things, both in and outside of the> kernel, that would likely need to be changed in order to support this.> I will say personally that its rare for me to use filenames longer> than 50-60 characters, just because they are a pain in the *ss to> type. However, I can see how someone using a graphical interface> might be happy with filenames in the 100-120 character range. The> question though is whether it is worth trying to fix this by> increasing the filename length beyond 255 bytes or not, given the> amount of effort that would be required in the kernel, libc,> userspace, etc. In China, there's also a trend moving ahead from 2bytes charsets(GB2312/GBK/GB18030/BIG5) to UTF-8, so all Chinese characters willneed 3 bytes for each to each instead of 2 from then on. The 255filename length limit the Chinese filename to 85 characters: now try to touch a file with 86 Chinese characters: gektop@tux ~/tmp 0 $ touch中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中国touch: cannot touch`中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中中国':File name too long It's very difficult to solve all these problems in the kernel, libc,userspace, I know, but I think we should keep the option to fix themin the future. Maybe in the next POSIX standard, we should changeNAME_MAX to [255 * max_bytes_per_character] ? Regards, >> - Ted> --> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in> the body of a message to majordomo@xxxxxxxxxxxxxxx> More majordomo info at http://vger.kernel.org/majordomo-info.html> -- Cheng Renquan, Shenzhen, ChinaYogi Berra - "I never said most of the things I said."��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
