On Mon, Feb 18, 2013 at 04:56:04PM +0900, Kyungsik Lee wrote: > @@ -55,8 +55,9 @@ static struct list_head *lzo_alloc_workspace(void) > return ERR_PTR(-ENOMEM); > > workspace->mem = vmalloc(LZO1X_MEM_COMPRESS); > - workspace->buf = vmalloc(PAGE_CACHE_SIZE); > - workspace->cbuf = vmalloc(lzo1x_worst_compress(PAGE_CACHE_SIZE)); > + workspace->buf = kmalloc(PAGE_CACHE_SIZE, GFP_NOFS); > + workspace->cbuf = kmalloc(lzo1x_worst_compress(PAGE_CACHE_SIZE), This is still larger than usual page size and allocator may issue a warning, so if we want to use kmalloc (it's ~4.4k in size and likely to be available, but not always due to possible page fragmentation), the __GFP_NOWARN should be supplied and if the allocation fails fall back to vmalloc. david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
