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| author | Stefan Richter <[email protected]> | 2008-11-29 18:00:56 +0000 |
|---|---|---|
| committer | Stefan Richter <[email protected]> | 2009-01-04 22:50:38 +0000 |
| commit | c8a12d45d543905a2718fccafd612edbd73a1341 (patch) | |
| tree | b14e18eb68be2da1e9971ce5094ccc54b9030ef8 /fs/btrfs/struct-funcs.c | |
| parent | firewire: fix resetting of bus manager retry counter (diff) | |
| download | kernel-c8a12d45d543905a2718fccafd612edbd73a1341.tar.gz kernel-c8a12d45d543905a2718fccafd612edbd73a1341.zip | |
firewire: reorder struct fw_card for better cache efficiency
topology_map is by far the largest member in struct fw_card. Move it to
the very end of the struct so that card pointer dereferences have better
chances to hit the CPU cache.
This requires to increase the topology_map backing store to the size
specified in IEEE 1394, i.e. 256 rather than 255 quadlets. Otherwise
the topology_map response handler may access invalid memory.
Signed-off-by: Stefan Richter <[email protected]>
Diffstat (limited to 'fs/btrfs/struct-funcs.c')
0 files changed, 0 insertions, 0 deletions