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mm: bdi init hooks
[linux-2.6-block.git]
/
mm
/
readahead.c
diff --git
a/mm/readahead.c
b/mm/readahead.c
index 229788884010d18a8dba50f65dbcfe7bb37df744..c9c50ca1ec3866b839a85173f3d416a1b17211d1 100644
(file)
--- a/
mm/readahead.c
+++ b/
mm/readahead.c
@@
-233,6
+233,12
@@
unsigned long max_sane_readahead(unsigned long nr)
+ node_page_state(numa_node_id(), NR_FREE_PAGES)) / 2);
}
+static int __init readahead_init(void)
+{
+ return bdi_init(&default_backing_dev_info);
+}
+subsys_initcall(readahead_init);
+
/*
* Submit IO for the read-ahead request in file_ra_state.
*/