On Wed, 2015-08-12 at 23:41 -0800, Kent Overstreet wrote:

On Thu, Aug 13, 2015 at 12:39:07AM -0700, Ming Lin wrote:

quoted

Hi Kent,

Seems the max length of xattr name+value is only 2004 bytes.
Why the limit of U8_MAX below?

The size of the key and value is stored as a u8 in units of u64s - the u64s
field of struct bkey.

xfstests/generic/020 failed.
Got it now.

xfs supports 64KB values.
In order to support larger size of value, does it make sense to store
the value in "extent"?