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| author | Tkhai Kirill <tkhai@yandex.ru> | 2012-06-29 02:55:25 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-26 16:49:40 -0700 |
| commit | 427f23cb3abc21c3784df8ae907c4c3a31d885d1 (patch) | |
| tree | 6e903641bbc8f40c031bc2cfa32e2c319c77bae2 /arch/sparc/kernel/process_32.c | |
| parent | a0ce3ba03f6bd49459c6c40a03faf10b23831c1b (diff) | |
| download | op-kernel-dev-427f23cb3abc21c3784df8ae907c4c3a31d885d1.zip op-kernel-dev-427f23cb3abc21c3784df8ae907c4c3a31d885d1.tar.gz | |
sparc32, copy_thread: Clear TIF_USEDFPU flag of created task instead of current
FPU state is saved into task_struct of created task. Current task continues
use of the state, so it needs TIF_USEDFPU flag is not cleared.
Created task receives fresh FPU and cleared TIF_USEFPU flag is required for it.
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/process_32.c')
| -rw-r--r-- | arch/sparc/kernel/process_32.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index cb36e82..14006d8 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -333,9 +333,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, put_psr(get_psr() | PSR_EF); fpsave(&p->thread.float_regs[0], &p->thread.fsr, &p->thread.fpqueue[0], &p->thread.fpqdepth); -#ifdef CONFIG_SMP - clear_thread_flag(TIF_USEDFPU); -#endif } /* @@ -413,6 +410,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, #ifdef CONFIG_SMP /* FPU must be disabled on SMP. */ childregs->psr &= ~PSR_EF; + clear_tsk_thread_flag(p, TIF_USEDFPU); #endif /* Set the return value for the child. */ |
