The patch titled
Subject: ipc: account for kmem usage on mqueue and msg
has been removed from the -mm tree. Its filename was
ipc-account-for-kmem-usage-on-mqueue-and-msg.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Aristeu Rozanski <arozansk@xxxxxxxxxx>
Subject: ipc: account for kmem usage on mqueue and msg
When kmem accounting switched from account by default to only account if
flagged by __GFP_ACCOUNT, IPC mqueue and messages was left out.
The production use case at hand is that mqueues should be customizable
via sysctls in Docker containers in a Kubernetes cluster. This can
only be safely allowed to the users of the cluster (without the risk
that they can cause resource shortage on a node, influencing other
users' containers) if all resources they control are bounded, i.e.
accounted for.
Link: http://lkml.kernel.org/r/1476806075-1210-1-git-send-email-arozansk@xxxxxxxxxx
Signed-off-by: Aristeu Rozanski <arozansk@xxxxxxxxxx>
Reported-by: Stefan Schimanski <sttts@xxxxxxxxxx>
Acked-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Stefan Schimanski <sttts@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/msgutil.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN ipc/msgutil.c~ipc-account-for-kmem-usage-on-mqueue-and-msg ipc/msgutil.c
--- a/ipc/msgutil.c~ipc-account-for-kmem-usage-on-mqueue-and-msg
+++ a/ipc/msgutil.c
@@ -53,7 +53,7 @@ static struct msg_msg *alloc_msg(size_t
size_t alen;
alen = min(len, DATALEN_MSG);
- msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL);
+ msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL_ACCOUNT);
if (msg == NULL)
return NULL;
@@ -65,7 +65,7 @@ static struct msg_msg *alloc_msg(size_t
while (len > 0) {
struct msg_msgseg *seg;
alen = min(len, DATALEN_SEG);
- seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL);
+ seg = kmalloc(sizeof(*seg) + alen, GFP_KERNEL_ACCOUNT);
if (seg == NULL)
goto out_err;
*pseg = seg;
_
Patches currently in -mm which might be from arozansk@xxxxxxxxxx are
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