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David Rientjes c6c8fe79a8 net, sunrpc: suppress allocation warning in rpc_malloc() 
rpc_malloc() allocates with GFP_NOWAIT without making any attempt at
reclaim so it easily fails when low on memory.  This ends up spamming the
kernel log:

SLAB: Unable to allocate memory on node 0 (gfp=0x4000)
  cache: kmalloc-8192, object size: 8192, order: 1
  node 0: slabs: 207/207, objs: 207/207, free: 0
rekonq: page allocation failure: order:1, mode:0x204000
CPU: 2 PID: 14321 Comm: rekonq Tainted: G           O  3.15.0-rc3-12.gfc9498b-desktop+ #6
Hardware name: System manufacturer System Product Name/M4A785TD-V EVO, BIOS 2105    07/23/2010
 0000000000000000 ffff880010ff17d0 ffffffff815e693c 0000000000204000
 ffff880010ff1858 ffffffff81137bd2 0000000000000000 0000001000000000
 ffff88011ffebc38 0000000000000001 0000000000204000 ffff88011ffea000
Call Trace:
 [<ffffffff815e693c>] dump_stack+0x4d/0x6f
 [<ffffffff81137bd2>] warn_alloc_failed+0xd2/0x140
 [<ffffffff8113be19>] __alloc_pages_nodemask+0x7e9/0xa30
 [<ffffffff811824a8>] kmem_getpages+0x58/0x140
 [<ffffffff81183de6>] fallback_alloc+0x1d6/0x210
 [<ffffffff81183be3>] ____cache_alloc_node+0x123/0x150
 [<ffffffff81185953>] __kmalloc+0x203/0x490
 [<ffffffffa06b0ee2>] rpc_malloc+0x32/0xa0 [sunrpc]
 [<ffffffffa06a6999>] call_allocate+0xb9/0x170 [sunrpc]
 [<ffffffffa06b19d8>] __rpc_execute+0x88/0x460 [sunrpc]
 [<ffffffffa06b2da9>] rpc_execute+0x59/0xc0 [sunrpc]
 [<ffffffffa06a932b>] rpc_run_task+0x6b/0x90 [sunrpc]
 [<ffffffffa077b5c1>] nfs4_call_sync_sequence+0x51/0x80 [nfsv4]
 [<ffffffffa077d45d>] _nfs4_do_setattr+0x1ed/0x280 [nfsv4]
 [<ffffffffa0782a72>] nfs4_do_setattr+0x72/0x180 [nfsv4]
 [<ffffffffa078334c>] nfs4_proc_setattr+0xbc/0x140 [nfsv4]
 [<ffffffffa074a7e8>] nfs_setattr+0xd8/0x240 [nfs]
 [<ffffffff811baa71>] notify_change+0x231/0x380
 [<ffffffff8119cf5c>] chmod_common+0xfc/0x120
 [<ffffffff8119df80>] SyS_chmod+0x40/0x90
 [<ffffffff815f4cfd>] system_call_fastpath+0x1a/0x1f
...

If the allocation fails, simply return NULL and avoid spamming the kernel
log.

Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
 		2014-05-29 11:11:51 -04:00
..
9p A bunch of updates and cleanup within the transport layer, 2014-04-11 14:14:57 -07:00
802 neigh: use NEIGH_VAR_INIT in ndo_neigh_setup functions. 2014-01-16 11:31:58 -08:00
8021q Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-29 18:48:54 -04:00
appletalk appletalk: fix checkpatch error with indent 2014-02-14 16:18:32 -05:00
atm net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
ax25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
batman-adv batman-adv: Start new development cycle 2014-03-22 09:18:59 +01:00
bluetooth net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
bridge bridge: Fix double free and memory leak around br_allowed_ingress 2014-04-11 15:12:47 -04:00
caif net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
can can: remove CAN FD compatibility for CAN 2.0 sockets 2014-03-03 14:29:52 +01:00
ceph net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
core pktgen: be friendly to LLTX devices 2014-04-12 01:59:38 -04:00
dcb dcb: use __dev_get_by_name instead of dev_get_by_name to find interface 2014-01-14 18:50:46 -08:00
dccp net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
decnet net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
dns_resolver net/*: Fix FSF address in file headers 2013-12-06 12:37:57 -05:00
dsa dsa: Use ether_addr_copy 2014-01-21 18:13:05 -08:00
ethernet net: eth_type_trans() should use skb_header_pointer() 2014-01-16 15:30:31 -08:00
hsr hsr: replace del_timer by del_timer_sync 2014-03-27 15:28:06 -04:00
ieee802154 mac802154: make csma/cca parameters per-wpan 2014-04-01 16:25:51 -04:00
ipv4 vti: don't allow to add the same tunnel twice 2014-04-12 17:03:11 -04:00
ipv6 net: ipv6: Fix oif in TCP SYN+ACK route lookup. 2014-04-11 16:43:47 -04:00
ipx ipx: implement shutdown() 2014-02-12 19:26:32 -05:00
irda net: add build-time checks for msg->msg_name size 2014-01-18 23:04:16 -08:00
iucv net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
key net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
l2tp l2tp: take PMTU from tunnel UDP socket 2014-04-09 15:24:38 -04:00
lapb
…
llc llc: remove noisy WARN from llc_mac_hdr_init 2014-01-28 18:01:32 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2014-03-21 14:02:04 -04:00
mac802154 mac802154: fix duplicate #include headers 2014-04-07 13:18:44 -04:00
mpls ipip: add GSO/TSO support 2013-10-19 19:36:19 -04:00
netfilter netfilter: nf_tables: fix wrong format in request_module() 2014-04-03 23:52:50 +02:00
netlabel netlabel: Fix FSF address in file headers 2013-12-06 12:37:56 -05:00
netlink net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
netrom net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
nfc net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-29 18:48:54 -04:00
packet net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
phonet net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
rds net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
rfkill net: rfkill: move poll work to power efficient workqueue 2014-02-04 21:58:16 +01:00
rose net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
rxrpc net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
sched net-sysfs: expose number of carrier on/off changes 2014-03-31 16:24:52 -04:00
sctp net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
sunrpc net, sunrpc: suppress allocation warning in rpc_malloc() 2014-05-29 11:11:51 -04:00
tipc net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
unix net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
vmw_vsock net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
wimax wimax: remove dead code 2013-11-21 13:09:42 -05:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2014-03-21 14:02:04 -04:00
x25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
Kconfig Merge branch 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2014-04-03 13:05:42 -07:00
Makefile net: move 6lowpan compression code to separate module 2014-01-15 15:36:38 -08:00
compat.c net/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types 2014-03-06 16:30:45 +01:00
nonet.c
…
socket.c net: ptp: move PTP classifier in its own file 2014-04-01 16:43:18 -04:00
sysctl_net.c net: Update the sysctl permissions handler to test effective uid/gid 2013-10-07 15:57:56 -04:00