> -----Original Message----- > From: Arnd Bergmann [mailto:arnd@xxxxxxxx] > Sent: Tuesday, March 29, 2011 10:43 PM > To: Guan Xuetao > Cc: Paul Mundt; linux-kernel@xxxxxxxxxxxxxxx; linux-fbdev@xxxxxxxxxxxxxxx > Subject: Re: [PATCH] unicore32 framebuffer driver fix: make videomemory kmalloc-ed and floatable > > On Tuesday 29 March 2011, Guan Xuetao wrote: > > > > 1. make videomemory kmalloc-ed in fb-puv3.c > > 2. remove resource reservation for old fixed UNIGFX_MMAP & UVC_MMAP space > > 3. remove unused PKUNTIY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE, > > PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE and KUSER_UNIGFX_BASE > > 4. remove unused header linux/vmalloc.h in fb-puv3.c > > > > Signed-off-by: Guan Xuetao <gxt@xxxxxxxxxxxxxxx> > > How does this work? UNIFB_MEMSIZE seems to be 4 MB, much more than the > maximum of 128 KB that kmalloc can allocate. > > Shouldn't this use get_free_pages() instead of kmalloc? > > Arnd When using SLUB allocator, if required memory size is larger than 2*PAGE_SIZE, kmalloc_large is called, and eventually __get_free_pages will be called. So, it would be the same as __get_free_pages. -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
