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net: add LINUX_MIB_PFMEMALLOCDROP counter

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Debugging issues caused by pfmemalloc is often tedious.

Add a new SNMP counter to more easily diagnose these problems.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Josef Bacik <jbacik@fb.com>
Acked-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2017-02-02 23:34:19 -05:00
committed by David S. Miller
parent 6610910939
commit 8fe809a992
3 changed files with 5 additions and 2 deletions
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include/uapi/linux/snmp.h
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@@ -240,6 +240,7 @@ enum
LINUX_MIB_SACKMERGED,
LINUX_MIB_SACKSHIFTFALLBACK,
LINUX_MIB_TCPBACKLOGDROP,
LINUX_MIB_PFMEMALLOCDROP,
LINUX_MIB_TCPMINTTLDROP, /* RFC 5082 */
LINUX_MIB_TCPDEFERACCEPTDROP,
LINUX_MIB_IPRPFILTER, /* IP Reverse Path Filter (rp_filter) */