mm: remove the leftovers of noswapaccount
In commit a2c8990aed
("memsw: remove noswapaccount kernel parameter"),
Michal forgot to remove some left pieces of noswapaccount in the tree,
this patch removes them all.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -518,22 +518,6 @@ Files: net/netfilter/xt_connlimit.c
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----------------------------
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What: noswapaccount kernel command line parameter
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When: 2.6.40
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Why: The original implementation of memsw feature enabled by
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CONFIG_CGROUP_MEM_RES_CTLR_SWAP could be disabled by the noswapaccount
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kernel parameter (introduced in 2.6.29-rc1). Later on, this decision
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turned out to be not ideal because we cannot have the feature compiled
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in and disabled by default and let only interested to enable it
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(e.g. general distribution kernels might need it). Therefore we have
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added swapaccount[=0|1] parameter (introduced in 2.6.37) which provides
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the both possibilities. If we remove noswapaccount we will have
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less command line parameters with the same functionality and we
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can also cleanup the parameter handling a bit ().
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Who: Michal Hocko <mhocko@suse.cz>
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----------------------------
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What: ipt_addrtype match include file
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When: 2012
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Why: superseded by xt_addrtype
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@ -673,7 +673,7 @@ config CGROUP_MEM_RES_CTLR_SWAP
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be careful about enabling this. When memory resource controller
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is disabled by boot option, this will be automatically disabled and
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there will be no overhead from this. Even when you set this config=y,
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if boot option "noswapaccount" is set, swap will not be accounted.
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if boot option "swapaccount=0" is set, swap will not be accounted.
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Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
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size is 4096bytes, 512k per 1Gbytes of swap.
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config CGROUP_MEM_RES_CTLR_SWAP_ENABLED
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@ -688,7 +688,7 @@ config CGROUP_MEM_RES_CTLR_SWAP_ENABLED
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parameter should have this option unselected.
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For those who want to have the feature enabled by default should
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select this option (if, for some reason, they need to disable it
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then noswapaccount does the trick).
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then swapaccount=0 does the trick).
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config CGROUP_PERF
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bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
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@ -537,7 +537,7 @@ int swap_cgroup_swapon(int type, unsigned long max_pages)
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nomem:
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printk(KERN_INFO "couldn't allocate enough memory for swap_cgroup.\n");
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printk(KERN_INFO
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"swap_cgroup can be disabled by noswapaccount boot option\n");
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"swap_cgroup can be disabled by swapaccount=0 boot option\n");
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return -ENOMEM;
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}
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