Now that inode LRU and writeback lists and locking are separated, it makes sense to avoid LRU manipulation after completing a writeback, and instead rely on lazy-LRU algorithm to do the work for us. Signed-off-by: Nick Piggin <npiggin@xxxxxxxxx> --- fs/fs-writeback.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) Index: linux-2.6/fs/fs-writeback.c =================================================================== --- linux-2.6.orig/fs/fs-writeback.c 2010-10-19 14:19:00.000000000 +1100 +++ linux-2.6/fs/fs-writeback.c 2010-10-19 14:19:18.000000000 +1100 @@ -410,7 +410,11 @@ * The inode is clean */ list_del_init(&inode->i_io); - if (list_empty(&inode->i_lru)) + + /* + * Put it on the LRU if it is unused, otherwise lazy. + */ + if (!inode->i_count && list_empty(&inode->i_lru)) __inode_lru_list_add(inode); } } -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
