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authorDave Jiang <dave.jiang@intel.com>2017-02-25 01:56:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-25 04:46:54 +0300
commit11bac80004499ea59f361ef2a5516c84b6eab675 (patch)
treeb971df98b3fa9d4e62b8f4f7b5ec950181df4daa /drivers/video
parent374ad05ab64d696303cec5cc8ec3a65d457b7b1c (diff)
downloadlinux-11bac80004499ea59f361ef2a5516c84b6eab675.tar.xz
mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf
->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to take a vma and vmf parameter when the vma already resides in vmf. Remove the vma parameter to simplify things. [arnd@arndb.de: fix ARM build] Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/core/fb_defio.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index 74b5bcac8bf2..37f69c061210 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -37,12 +37,11 @@ static struct page *fb_deferred_io_page(struct fb_info *info, unsigned long offs
}
/* this is to find and return the vmalloc-ed fb pages */
-static int fb_deferred_io_fault(struct vm_area_struct *vma,
- struct vm_fault *vmf)
+static int fb_deferred_io_fault(struct vm_fault *vmf)
{
unsigned long offset;
struct page *page;
- struct fb_info *info = vma->vm_private_data;
+ struct fb_info *info = vmf->vma->vm_private_data;
offset = vmf->pgoff << PAGE_SHIFT;
if (offset >= info->fix.smem_len)
@@ -54,8 +53,8 @@ static int fb_deferred_io_fault(struct vm_area_struct *vma,
get_page(page);
- if (vma->vm_file)
- page->mapping = vma->vm_file->f_mapping;
+ if (vmf->vma->vm_file)
+ page->mapping = vmf->vma->vm_file->f_mapping;
else
printk(KERN_ERR "no mapping available\n");
@@ -91,11 +90,10 @@ int fb_deferred_io_fsync(struct file *file, loff_t start, loff_t end, int datasy
EXPORT_SYMBOL_GPL(fb_deferred_io_fsync);
/* vm_ops->page_mkwrite handler */
-static int fb_deferred_io_mkwrite(struct vm_area_struct *vma,
- struct vm_fault *vmf)
+static int fb_deferred_io_mkwrite(struct vm_fault *vmf)
{
struct page *page = vmf->page;
- struct fb_info *info = vma->vm_private_data;
+ struct fb_info *info = vmf->vma->vm_private_data;
struct fb_deferred_io *fbdefio = info->fbdefio;
struct page *cur;
@@ -105,7 +103,7 @@ static int fb_deferred_io_mkwrite(struct vm_area_struct *vma,
deferred framebuffer IO. then if userspace touches a page
again, we repeat the same scheme */
- file_update_time(vma->vm_file);
+ file_update_time(vmf->vma->vm_file);
/* protect against the workqueue changing the page list */
mutex_lock(&fbdefio->lock);