Re: [PATCH] Btrfs: shrink further sizeof(struct extent_buffer)

2014-08-26 Thread David Sterba
On Thu, Aug 14, 2014 at 12:25:14PM +0100, Filipe Manana wrote: The map_start and map_len fields aren't used anywhere, so just remove them. On a x86_64 system, this reduced sizeof(struct extent_buffer) from 296 bytes to 280 bytes, and therefore 14 extent_buffer structs can now fit into a page

[PATCH] Btrfs: shrink further sizeof(struct extent_buffer)

2014-08-14 Thread Filipe Manana
The map_start and map_len fields aren't used anywhere, so just remove them. On a x86_64 system, this reduced sizeof(struct extent_buffer) from 296 bytes to 280 bytes, and therefore 14 extent_buffer structs can now fit into a page instead of 13. Signed-off-by: Filipe Manana fdman...@suse.com ---