X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finfiniband%2Fhw%2Fipath%2Fipath_user_pages.c;h=0190edc8044e664a0cba534db6c1737a974cb233;hb=49739b3e24a10d819d3167a1c5b319d0b1186245;hp=413754b1d8a254d6fb26111dfe743a74d13ddcfc;hpb=7ff3e52cf2947ebd38c84159af68e5a29d228f6c;p=linux-2.6-omap-h63xx.git diff --git a/drivers/infiniband/hw/ipath/ipath_user_pages.c b/drivers/infiniband/hw/ipath/ipath_user_pages.c index 413754b1d8a..0190edc8044 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_pages.c +++ b/drivers/infiniband/hw/ipath/ipath_user_pages.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006 QLogic, Inc. All rights reserved. + * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -171,32 +171,6 @@ int ipath_get_user_pages(unsigned long start_page, size_t num_pages, return ret; } -/** - * ipath_get_user_pages_nocopy - lock a single page for I/O and mark shared - * @start_page: the page to lock - * @p: the output page structure - * - * This is similar to ipath_get_user_pages, but it's always one page, and we - * mark the page as locked for I/O, and shared. This is used for the user - * process page that contains the destination address for the rcvhdrq tail - * update, so we need to have the vma. If we don't do this, the page can be - * taken away from us on fork, even if the child never touches it, and then - * the user process never sees the tail register updates. - */ -int ipath_get_user_pages_nocopy(unsigned long page, struct page **p) -{ - struct vm_area_struct *vma; - int ret; - - down_write(¤t->mm->mmap_sem); - - ret = __get_user_pages(page, 1, p, &vma); - - up_write(¤t->mm->mmap_sem); - - return ret; -} - void ipath_release_user_pages(struct page **p, size_t num_pages) { down_write(¤t->mm->mmap_sem); @@ -214,9 +188,10 @@ struct ipath_user_pages_work { unsigned long num_pages; }; -static void user_pages_account(void *ptr) +static void user_pages_account(struct work_struct *_work) { - struct ipath_user_pages_work *work = ptr; + struct ipath_user_pages_work *work = + container_of(_work, struct ipath_user_pages_work, work); down_write(&work->mm->mmap_sem); work->mm->locked_vm -= work->num_pages; @@ -242,7 +217,7 @@ void ipath_release_user_pages_on_close(struct page **p, size_t num_pages) goto bail; - INIT_WORK(&work->work, user_pages_account, work); + INIT_WORK(&work->work, user_pages_account); work->mm = mm; work->num_pages = num_pages;