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Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[firefly-linux-kernel-4.4.55.git]
/
mm
/
page-writeback.c
diff --git
a/mm/page-writeback.c
b/mm/page-writeback.c
index 650846b615841c14f092bdae6aa58acb276aae88..9c31199dae9a4a29c84651c7c2fe59929eeb99dc 100644
(file)
--- a/
mm/page-writeback.c
+++ b/
mm/page-writeback.c
@@
-251,7
+251,9
@@
static void bdi_writeout_fraction(struct backing_dev_info *bdi,
}
/*
- *
+ * bdi_min_ratio keeps the sum of the minimum dirty shares of all
+ * registered backing devices, which, for obvious reasons, can not
+ * exceed 100%.
*/
static unsigned int bdi_min_ratio;