Messages in this thread Patch in this message | | | Date | Fri, 15 Jun 2012 20:14:10 -0700 | From | tip-bot for Suresh Siddha <> | Subject | [tip:x86/urgent] x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery |
| |
Commit-ID: 0b91f45b23cb73ce11acdc3cf4c6efd4441e3b3e Gitweb: http://git.kernel.org/tip/0b91f45b23cb73ce11acdc3cf4c6efd4441e3b3e Author: Suresh Siddha <suresh.b.siddha@intel.com> AuthorDate: Thu, 14 Jun 2012 18:07:15 -0700 Committer: H. Peter Anvin <hpa@zytor.com> CommitDate: Thu, 14 Jun 2012 18:16:04 -0700
x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery
Signal delivery compat path may not have the 'TS_COMPAT' flag (that flag indicates how we entered the kernel). So use test_thread_flag(TIF_IA32) instead of is_ia32_task(): one of the functions of TIF_IA32 is just what kind of signal frame we want.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1339722435.3475.57.camel@sbsiddha-desk.sc.intel.com Cc: stable@kernel.org # v3.4 Signed-off-by: H. Peter Anvin <hpa@zytor.com> --- arch/x86/ia32/ia32_signal.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index daeca56..673ac9b 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -38,7 +38,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) { int err = 0; - bool ia32 = is_ia32_task(); + bool ia32 = test_thread_flag(TIF_IA32); if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t))) return -EFAULT;
| |