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| author | David Woodhouse <dwmw2@shinybook.infradead.org> | 2005-06-18 08:36:46 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@shinybook.infradead.org> | 2005-06-18 08:36:46 +0100 |
| commit | 0107b3cf3225aed6ddde4fa8dbcd4ed643b34f4d (patch) | |
| tree | 9b9337ae627fc56a0eda43c60860765f25efaa0b /arch/ia64/kernel/ptrace.c | |
| parent | 1c3f45ab2f7f879ea482501c83899505c31f7539 (diff) | |
| parent | 9ee1c939d1cb936b1f98e8d81aeffab57bae46ab (diff) | |
Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'arch/ia64/kernel/ptrace.c')
| -rw-r--r-- | arch/ia64/kernel/ptrace.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 08c8a5eb25a..575a8f657b3 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -635,11 +635,17 @@ ia64_flush_fph (struct task_struct *task) { struct ia64_psr *psr = ia64_psr(ia64_task_regs(task)); + /* + * Prevent migrating this task while + * we're fiddling with the FPU state + */ + preempt_disable(); if (ia64_is_local_fpu_owner(task) && psr->mfh) { psr->mfh = 0; task->thread.flags |= IA64_THREAD_FPH_VALID; ia64_save_fpu(&task->thread.fph[0]); } + preempt_enable(); } /* |