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authorLuciano Coelho <coelho@ti.com>2011-12-01 14:14:48 +0400
committerLuciano Coelho <coelho@ti.com>2011-12-01 14:14:48 +0400
commite4da3fbfbd1de56d2367653e3823e6445e49f8a9 (patch)
treef69f424f731b89a75f881967903ff2f38f4b6a92 /include/linux/shrinker.h
parentb693289406f0b8ca70ab77e745be6196d5740eb0 (diff)
parentba5736a5e9ac20c378ae4179e8a0ed3cc4b44351 (diff)
downloadlinux-e4da3fbfbd1de56d2367653e3823e6445e49f8a9.tar.xz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into wl12xx-next
Diffstat (limited to 'include/linux/shrinker.h')
-rw-r--r--include/linux/shrinker.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 790651b4e5ba..a83833a1f7a2 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -20,6 +20,7 @@ struct shrink_control {
* 'nr_to_scan' entries and attempt to free them up. It should return
* the number of objects which remain in the cache. If it returns -1, it means
* it cannot do any scanning at this time (eg. there is a risk of deadlock).
+ * The callback must not return -1 if nr_to_scan is zero.
*
* The 'gfpmask' refers to the allocation we are currently trying to
* fulfil.