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authorMichal Hocko <mhocko@suse.cz>2012-04-05 14:25:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-05 15:25:51 -0700
commitdac23b0d0513916498d40412818bd2c581b365f7 (patch)
treee758624d444ab8d93f5f38cbcc34de5a8b77248d /scripts/coccinelle
parent6ede3d832aaa038e7465e677569f7acc96b4dcdf (diff)
downloadvexpress-lsk-dac23b0d0513916498d40412818bd2c581b365f7.tar.gz
memcg swap: use mem_cgroup_uncharge_swap fix
Although mem_cgroup_uncharge_swap has an empty placeholder for !CONFIG_CGROUP_MEM_RES_CTLR_SWAP the definition is placed in the CONFIG_SWAP ifdef block so we are missing the same definition for !CONFIG_SWAP which implies !CONFIG_CGROUP_MEM_RES_CTLR_SWAP. This has not been an issue before, because mem_cgroup_uncharge_swap was not called from !CONFIG_SWAP context. But Hugh Dickins has a cleanup patch to call __mem_cgroup_commit_charge_swapin which is defined also for !CONFIG_SWAP. Let's move both the empty definition and declaration outside of the CONFIG_SWAP block to avoid the following compilation error: mm/memcontrol.c: In function '__mem_cgroup_commit_charge_swapin': mm/memcontrol.c:2837: error: implicit declaration of function 'mem_cgroup_uncharge_swap' if CONFIG_SWAP is disabled. Reported-by: David Rientjes <rientjes@google.com> Signed-off-by: Michal Hocko <mhocko@suse.cz> Cc: Hugh Dickins <hughd@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/coccinelle')
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