On (02/12/14 16:08), Minchan Kim wrote:
[..]
> > +#include <linux/kernel.h>
> > +#include <linux/string.h>
> > +#include <linux/slab.h>
> > +#include <linux/vmalloc.h>
> > +#include <linux/wait.h>
> > +#include <linux/sched.h>
> > +
> > +#include "zram_comp.h"
> > +
> > +extern struct zram_comp_backend zcomp_lzo;
> > +
> > +static void workmem_free(struct zram_comp *comp, struct zcomp_workmem
> > *workmem)
> > +{
> > + comp->backend->destroy(workmem->private);
> > + free_pages((unsigned long)workmem->buffer, 1);
> > + kfree(workmem);
> > +}
> > +
> > +/* allocate new workmem structure with ->mem of requested size,
> > + * return NULL on error */
> > +static struct zcomp_workmem *workmem_alloc(struct zram_comp *comp)
> > +{
> > + struct zcomp_workmem *workmem = kmalloc(sizeof(*workmem), GFP_NOFS);
>
>
> One more thing, pz, say why we need GFP_NOFS in here.
>
my bad. it definitely should be GFP_KERNEL.
-ss
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