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authorDavid Rientjes <rientjes@google.com>2010-08-10 04:19:47 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-10 07:45:02 +0400
commit51b1bd2ace1595b72956224deda349efa880b693 (patch)
tree82732bb33d26379c05494dcdba8ea390ae0621db /Documentation/filesystems/proc.txt
parenta63d83f427fbce97a6cea0db2e64b0eb8435cd10 (diff)
downloadlinux-51b1bd2ace1595b72956224deda349efa880b693.tar.xz
oom: deprecate oom_adj tunable
/proc/pid/oom_adj is now deprecated so that that it may eventually be removed. The target date for removal is August 2012. A warning will be printed to the kernel log if a task attempts to use this interface. Future warning will be suppressed until the kernel is rebooted to prevent spamming the kernel log. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Nick Piggin <npiggin@suse.de> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/filesystems/proc.txt')
-rw-r--r--Documentation/filesystems/proc.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index cf1295c2bb66..a6aca8740883 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1285,6 +1285,9 @@ scaled linearly with /proc/<pid>/oom_score_adj.
Writing to /proc/<pid>/oom_score_adj or /proc/<pid>/oom_adj will change the
other with its scaled value.
+NOTICE: /proc/<pid>/oom_adj is deprecated and will be removed, please see
+Documentation/feature-removal-schedule.txt.
+
Caveat: when a parent task is selected, the oom killer will sacrifice any first
generation children with seperate address spaces instead, if possible. This
avoids servers and important system daemons from being killed and loses the