Re: fs block size and PAGE_CACHE_SIZE

Trond Myklebust
2003-05-06T21:22:22Z

>>>>> " " == David Chow <davidchow@shaolinmicro.com> writes:

> In other words, is it possible (or someone already done) to
> implement a file system that has 16k block size on a 4k paging
> system.

The NFS client does that. In 2.4.x, I had to invent a custom system
for coalescing the pages, but in 2.5.x, Andrew added the readpages()
op, and the ability to control page readahead via the backing_dev_info
struct.

Cheers,
Trond