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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-11-21 23:42:06 +0000
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-11-21 23:42:06 +0000
commit300e812db26f4aa022e346f5fb9af1af134d98d8 (patch)
tree382b45253a704087e8aa0c770bf3fc2ad67d4b02 /include/linux/shrinker.h
parent4420dd2b306f1997232a13462bca0d420be5b1b8 (diff)
parentcfcfc9eca2bcbd26a8e206baeb005b055dbf8e37 (diff)
Merge commit 'v3.2-rc2' into fbdev-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 790651b4e5b..a83833a1f7a 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.