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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-12-15 08:59:11 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:43:19 +0100 |
| commit | 19f843aa08e2d8f87a09b4c2edc43b00638423a8 (patch) | |
| tree | 49919bd17ba7e03eb7cb76175910714d55704997 /mm/page_alloc.c | |
| parent | 95a0f10cddbf93ce89c175ac1c53dad2d20ad309 (diff) | |
drbd: bitmap keep track of changes vs on-disk bitmap
When we set or clear bits in a bitmap page,
also set a flag in the page->private pointer.
This allows us to skip writes of unchanged pages.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions