[PATCH] proc: sysctl: add _proc_do_string helper
The logic in proc_do_string is worth re-using without passing in a ctl_table structure (say, we want to calculate a pointer and pass that in instead); pass in the two fields it uses from that structure as explicit arguments. Signed-off-by: NSam Vilain <sam.vilain@catalyst.net.nz> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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