From eb415b8f6d1b259ea31b3093df958054380f7f8f Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Thu, 13 Dec 2007 16:16:40 +0100 Subject: [PATCH] [ALSA] alsa: usx2y nopage Convert alsa usx2y driver from nopage to fault. Signed-off-by: Nick Piggin Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usx2y/usX2Yhwdep.c | 23 ++++++++++------------- sound/usb/usx2y/usx2yhwdeppcm.c | 20 +++++++------------- 2 files changed, 17 insertions(+), 26 deletions(-) diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c index b76b3dd..a1dca344 100644 --- a/sound/usb/usx2y/usX2Yhwdep.c +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -34,34 +34,31 @@ int usX2Y_hwdep_pcm_new(struct snd_card *card); -static struct page * snd_us428ctls_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) +static int snd_us428ctls_vm_fault(struct vm_area_struct *area, + struct vm_fault *vmf) { unsigned long offset; struct page * page; void *vaddr; - snd_printdd("ENTER, start %lXh, ofs %lXh, pgoff %ld, addr %lXh\n", + snd_printdd("ENTER, start %lXh, pgoff %ld\n", area->vm_start, - address - area->vm_start, - (address - area->vm_start) >> PAGE_SHIFT, - address); + vmf->pgoff); - offset = area->vm_pgoff << PAGE_SHIFT; - offset += address - area->vm_start; - snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_SIGBUS); + offset = vmf->pgoff << PAGE_SHIFT; vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset; page = virt_to_page(vaddr); get_page(page); - snd_printdd( "vaddr=%p made us428ctls_vm_nopage() return %p; offset=%lX\n", vaddr, page, offset); + vmf->page = page; - if (type) - *type = VM_FAULT_MINOR; + snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n", + vaddr, page); - return page; + return 0; } static struct vm_operations_struct us428ctls_vm_ops = { - .nopage = snd_us428ctls_vm_nopage, + .fault = snd_us428ctls_vm_fault, }; static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area) diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c index a5e7bcd..800b5ce 100644 --- a/sound/usb/usx2y/usx2yhwdeppcm.c +++ b/sound/usb/usx2y/usx2yhwdeppcm.c @@ -683,30 +683,24 @@ static void snd_usX2Y_hwdep_pcm_vm_close(struct vm_area_struct *area) } -static struct page * snd_usX2Y_hwdep_pcm_vm_nopage(struct vm_area_struct *area, unsigned long address, int *type) +static int snd_usX2Y_hwdep_pcm_vm_fault(struct vm_area_struct *area, + struct vm_fault *vmf) { unsigned long offset; - struct page *page; void *vaddr; - offset = area->vm_pgoff << PAGE_SHIFT; - offset += address - area->vm_start; - snd_assert((offset % PAGE_SIZE) == 0, return NOPAGE_OOM); + offset = vmf->pgoff << PAGE_SHIFT; vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->hwdep_pcm_shm + offset; - page = virt_to_page(vaddr); - get_page(page); - - if (type) - *type = VM_FAULT_MINOR; - - return page; + vmf->page = virt_to_page(vaddr); + get_page(vmf->page); + return 0; } static struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = { .open = snd_usX2Y_hwdep_pcm_vm_open, .close = snd_usX2Y_hwdep_pcm_vm_close, - .nopage = snd_usX2Y_hwdep_pcm_vm_nopage, + .fault = snd_usX2Y_hwdep_pcm_vm_fault, }; -- 2.7.4