information on block size in ext2

Stephen C. Tweedie sct at
Wed Mar 31 12:56:04 UTC 2004


On Mon, 2004-03-29 at 20:58, Anandanam Rama Kotaiah wrote:

>  I want to know wt does s_log_blocksize represent in ext2's superblock
> structure in memory.. Is is 1024 for 1kb block size in ext2 file system..
> Also wt does s_blocksize and s_blocksize_bits members of VFS
> superblock represent..

Checking the source code is always the best way to find the answers to
such questions.  In particular, see how s_log_blocksize is used in
ext2_fill_super(); for the other two, check sb_set_blocksize().

> BTW are there any ext2 file system specific mailing lists..

ext2-devel at

although it's a developer list, not a general ext2 user list.


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