From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 2 May 2007 17:27:11 +0000 (+0200)
Subject: [PATCH] x86-64: fix vtime() vsyscall
X-Git-Tag: v2.6.22-rc1~1011^2~133
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=272a3713bb9e302e0455c894c41180a482d2c8a3;p=pandora-kernel.git

[PATCH] x86-64: fix vtime() vsyscall

There is a tiny probability that the return value from vtime(time_t *t) is
Signed-off-by: Andi Kleen <ak@suse.de>

different than the value stored in *t

Using a temporary variable solves the problem and gives a faster code.

   17:   48 85 ff                test   %rdi,%rdi
   1a:   48 8b 05 00 00 00 00    mov    0(%rip),%rax        #
__vsyscall_gtod_data.wall_time_tv.tv_sec
   21:   74 03                   je     26
   23:   48 89 07                mov    %rax,(%rdi)
   26:   c9                      leaveq
   27:   c3                      retq

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
---

Reading git-diff-tree failed