On 07/04/2016 12:34 AM, Chandan Rajendra wrote:
In order to handle multiple extent buffers per page, first we need to create a
way to handle all the extent buffers that are attached to a page.
This patch creates a new data structure 'struct extent_buffer_head', and moves
fields that are common to all extent buffers from 'struct extent_buffer' to
'struct extent_buffer_head'
Also, this patch moves EXTENT_BUFFER_TREE_REF, EXTENT_BUFFER_DUMMY and
EXTENT_BUFFER_IN_TREE flags from extent_buffer->ebflags to
extent_buffer_head->bflags.
Reviewed-by: Liu Bo <bo.li....@oracle.com>
Signed-off-by: Chandan Rajendra <chan...@linux.vnet.ibm.com>
I'm sorry Chandan I'm still having problems with this one. XFS kmalloc()'s its
sub pagesize ranges for it's metadata buffers, how about we do that instead of
doing the extent_buffer_head. Look at xfs_buf_allocate_memory() for what I'm
thinking. Thanks,
Josef
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