diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-02-27 14:04:40 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-02-27 14:04:40 -0700 |
| commit | 29f141fed01a09050207c4d41fc5811520d81146 (patch) | |
| tree | c55a51dca4a0e4da9fdc2b904eefbde37d2a5b03 /arch/x86/kernel/xsave.c | |
| parent | 2261cc627f5453004042b4f694612edae27e492e (diff) | |
| parent | 14cd3c15cfc8118586262a79bfa3b3123f13e2c2 (diff) | |
Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux into devicetree/merge
Diffstat (limited to 'arch/x86/kernel/xsave.c')
| -rw-r--r-- | arch/x86/kernel/xsave.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c index a3911343976..71109111411 100644 --- a/arch/x86/kernel/xsave.c +++ b/arch/x86/kernel/xsave.c @@ -47,7 +47,7 @@ void __sanitize_i387_state(struct task_struct *tsk) if (!fx) return; - BUG_ON(task_thread_info(tsk)->status & TS_USEDFPU); + BUG_ON(__thread_has_fpu(tsk)); xstate_bv = tsk->thread.fpu.state->xsave.xsave_hdr.xstate_bv; @@ -168,7 +168,7 @@ int save_i387_xstate(void __user *buf) if (!used_math()) return 0; - if (task_thread_info(tsk)->status & TS_USEDFPU) { + if (user_has_fpu()) { if (use_xsave()) err = xsave_user(buf); else @@ -176,8 +176,7 @@ int save_i387_xstate(void __user *buf) if (err) return err; - task_thread_info(tsk)->status &= ~TS_USEDFPU; - stts(); + user_fpu_end(); } else { sanitize_i387_state(tsk); if (__copy_to_user(buf, &tsk->thread.fpu.state->fxsave, @@ -292,10 +291,7 @@ int restore_i387_xstate(void __user *buf) return err; } - if (!(task_thread_info(current)->status & TS_USEDFPU)) { - clts(); - task_thread_info(current)->status |= TS_USEDFPU; - } + user_fpu_begin(); if (use_xsave()) err = restore_user_xstate(buf); else |