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cgroup files: convert devcgroup_access_write() into a cgroup write_st…
…ring() handler This patch converts devcgroup_access_write() from a raw file handler into a handler for the cgroup write_string() method. This allows some boilerplate copying/locking/checking to be removed and simplifies the cleanup path, since these functions are performed by the cgroups framework before calling the handler. Signed-off-by: Paul Menage <[email protected]> Cc: Paul Jackson <[email protected]> Cc: Pavel Emelyanov <[email protected]> Cc: Balbir Singh <[email protected]> Acked-by: Serge Hallyn <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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