Thank you! I will do the same change in our out-of-tree modules! Jesper will do the ack. > 6 okt 2015 kl. 11:43 skrev Jan Kara <jack@xxxxxxxx>: > > From: Jan Kara <jack@xxxxxxx> > > CC: linux-cris-kernel@xxxxxxxx > CC: Mikael Starvik <starvik@xxxxxxxx> > CC: Jesper Nilsson <jesper.nilsson@xxxxxxxx> > Signed-off-by: Jan Kara <jack@xxxxxxx> > --- > arch/cris/arch-v32/drivers/cryptocop.c | 35 ++++++++++------------------------ > 1 file changed, 10 insertions(+), 25 deletions(-) > > diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c > index 877da1908234..df7ceeff1086 100644 > --- a/arch/cris/arch-v32/drivers/cryptocop.c > +++ b/arch/cris/arch-v32/drivers/cryptocop.c > @@ -2716,43 +2716,28 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig > } > } > > - /* Acquire the mm page semaphore. */ > - down_read(¤t->mm->mmap_sem); > - > - err = get_user_pages(current, > - current->mm, > - (unsigned long int)(oper.indata + prev_ix), > - noinpages, > - 0, /* read access only for in data */ > - 0, /* no force */ > - inpages, > - NULL); > + err = get_user_pages_fast((unsigned long)(oper.indata + prev_ix), > + noinpages, > + 0, /* read access only for in data */ > + inpages); > > if (err < 0) { > - up_read(¤t->mm->mmap_sem); > nooutpages = noinpages = 0; > - DEBUG_API(printk("cryptocop_ioctl_process: get_user_pages indata\n")); > + DEBUG_API(printk("cryptocop_ioctl_process: get_user_pages_fast indata\n")); > goto error_cleanup; > } > noinpages = err; > if (oper.do_cipher){ > - err = get_user_pages(current, > - current->mm, > - (unsigned long int)oper.cipher_outdata, > - nooutpages, > - 1, /* write access for out data */ > - 0, /* no force */ > - outpages, > - NULL); > - up_read(¤t->mm->mmap_sem); > + err = get_user_pages_fast((unsigned long)oper.cipher_outdata, > + nooutpages, > + 1, /* write access for out data */ > + outpages); > if (err < 0) { > nooutpages = 0; > - DEBUG_API(printk("cryptocop_ioctl_process: get_user_pages outdata\n")); > + DEBUG_API(printk("cryptocop_ioctl_process: get_user_pages_fast outdata\n")); > goto error_cleanup; > } > nooutpages = err; > - } else { > - up_read(¤t->mm->mmap_sem); > } > > /* Add 6 to nooutpages to make room for possibly inserted buffers for storing digest and > -- > 2.1.4 > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href