From: Oleg Nesterov Date: Wed, 16 Oct 2013 20:09:45 +0000 (+0200) Subject: perf: Kill the dead !vma->vm_mm code in perf_event_mmap_event() X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~41^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32c5fb7e7d18b4fd37c5e29dea731151e9d66866;p=pandora-kernel.git perf: Kill the dead !vma->vm_mm code in perf_event_mmap_event() 1. perf_event_mmap(vma) is never called with a gate_vma-like arg, remove the "if (!vma->vm_mm)" code. 2. arch_vma_name() can use the chached value of mmap_event->vma. 3. Change the code to not call arch_vma_name() twice. 4. Purely cosmetic, but since we use "goto got_name" all the time remove "else" from "[stack]" branch just for symmetry. Signed-off-by: Oleg Nesterov Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20131016200945.GB23214@redhat.com Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed