fs: Remove unlikely() from fput_light()
authorSteven Rostedt <srostedt@redhat.com>
Tue, 14 Dec 2010 00:38:08 +0000 (19:38 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Mon, 17 Jan 2011 08:26:26 +0000 (03:26 -0500)
commitc2b3e74b78b24cb367289a75a2bd30e569e56e0e
tree1ae2e53e0aa3831486afd2ec8c71a8cd32535b1b
parent2fe17c1075836b66678ed2a305fd09b6773883aa
fs: Remove unlikely() from fput_light()

In fput_light(), there's an unlikely(fput_needed), which running on
my normal desktop doing firefox, xchat, evolution and part of my distcc farm,
and running the annotate branch profiler shows that the unlikely is not
very unlikely.

 correct incorrect  %        Function             File              Line
 ------- ---------  -        --------             ----              ----
       0       48 100 fput_light                file.h               26
115828710 897415279  88 fput_light              file.h               26
865271179 5286128445  85 fput_light             file.h               26
19568539  8923664  31 fput_light                file.h               26
12353677  3562279  22 fput_light                file.h               26
  267691    67062  20 fput_light                file.h               26
15014853   348172   2 fput_light                file.h               26
  209258      205   0 fput_light                file.h               26
 1364164        0   0 fput_light                file.h               26

Which gives 1032903812 times it was correct and 6203351846 times it was
incorrect, or 85% incorrect.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
include/linux/file.h