Skip to content

Commit

Permalink
drm/ttm: use shmem_read_mapping_page
Browse files Browse the repository at this point in the history
Soon tmpfs will stop supporting ->readpage and read_mapping_page(): once
"tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can
be applied to ease the transition.

ttm_tt_swapin() and ttm_tt_swapout() use shmem_read_mapping_page() in
place of read_mapping_page(), since their swap_space has been created with
shmem_file_setup().

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  • Loading branch information
Hugh Dickins authored and Linus Torvalds committed Jun 28, 2011
1 parent a39bce7 commit 3142b65
Showing 1 changed file with 3 additions and 2 deletions.
5 changes: 3 additions & 2 deletions drivers/gpu/drm/ttm/ttm_tt.c
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
#include <linux/sched.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/shmem_fs.h>
#include <linux/file.h>
#include <linux/swap.h>
#include <linux/slab.h>
Expand Down Expand Up @@ -484,7 +485,7 @@ static int ttm_tt_swapin(struct ttm_tt *ttm)
swap_space = swap_storage->f_path.dentry->d_inode->i_mapping;

for (i = 0; i < ttm->num_pages; ++i) {
from_page = read_mapping_page(swap_space, i, NULL);
from_page = shmem_read_mapping_page(swap_space, i);
if (IS_ERR(from_page)) {
ret = PTR_ERR(from_page);
goto out_err;
Expand Down Expand Up @@ -557,7 +558,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
from_page = ttm->pages[i];
if (unlikely(from_page == NULL))
continue;
to_page = read_mapping_page(swap_space, i, NULL);
to_page = shmem_read_mapping_page(swap_space, i);
if (unlikely(IS_ERR(to_page))) {
ret = PTR_ERR(to_page);
goto out_err;
Expand Down

0 comments on commit 3142b65

Please sign in to comment.