diff options
| author | Eric Dumazet <dada1@cosmosbay.com> | 2007-05-02 13:27:11 -0400 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 13:27:11 -0400 |
| commit | 272a3713bb9e302e0455c894c41180a482d2c8a3 (patch) | |
| tree | 2dad036c75c0523db5f5f0f9618f4f3b9f21e28c /arch/x86_64/kernel/ptrace.c | |
| parent | bd8559c38ee5be40ce2c57a80fd3c3e978cca267 (diff) | |
[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>
Diffstat (limited to 'arch/x86_64/kernel/ptrace.c')
0 files changed, 0 insertions, 0 deletions