autofs: fix inconsistent use of now variable
The global variable "now" in fs/autofs/expire.c is used in an inconsistent way, sometimes using jiffies directly, and sometimes using the "now" variable, and setting it isn't done consistently either. But the autofs dentry info last_used field is only updated during path walks or during expire so jiffies can be used directly and the global variable "now" removed. Link: http://lkml.kernel.org/r/152937731702.21213.7371321165189170865.stgit@pluto.themaw.netSigned-off-by: NIan Kent <raven@themaw.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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