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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2007-10-16 23:25:46 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:45 -0700
commite0bf68ddec4f4f90e5871404be4f1854c17f3120 (patch)
tree36203a3558cbe26d698bed18be69b3822fb5eef2 /mm/readahead.c
parentdc62a30e274d003a4d08fb888f1520add4b21373 (diff)
downloadlinux-e0bf68ddec4f4f90e5871404be4f1854c17f3120.tar.bz2
mm: bdi init hooks
provide BDI constructor/destructor hooks [akpm@linux-foundation.org: compile fix] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 229788884010..c9c50ca1ec38 100644
--- 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.
*/