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| author | Steve French <sfrench@us.ibm.com> | 2005-06-13 13:25:38 -0500 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-06-13 13:25:38 -0500 |
| commit | 5893a65711164e42fea4a58bb8adf47c2fac8a4b (patch) | |
| tree | 31b5f20e314aae236b06998de3fffeb729581af5 /arch/ia64/kernel/ptrace.c | |
| parent | d6e04ae64c6b06ef76a5d4fb49106b393b7fa50a (diff) | |
| parent | c0105338eb4e61e537ca34ae06921177cb6efcf0 (diff) | |
| download | kernel-crypto-5893a65711164e42fea4a58bb8adf47c2fac8a4b.tar.gz kernel-crypto-5893a65711164e42fea4a58bb8adf47c2fac8a4b.tar.xz kernel-crypto-5893a65711164e42fea4a58bb8adf47c2fac8a4b.zip | |
Merge with rsync://rsync.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-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(); } /* |