xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] read_mapping_page for address space

Browse Source 
Add read_mapping_page() which is used for callers that pass
mapping->a_ops->readpage as the filler for read_cache_page.  This removes
some duplication from filesystem code.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pekka Enberg
2006-06-23 02:05:08 -07:00
committed by Linus Torvalds
parent c330dda908
commit 090d2b185d
22 changed files with 38 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
fs/ntfs/aops.h
View File

@@ -86,8 +86,7 @@ static inline void ntfs_unmap_page(struct page *page)
static inline struct page *ntfs_map_page(struct address_space *mapping,
unsigned long index)
{
struct page *page = read_cache_page(mapping, index,
(filler_t*)mapping->a_ops->readpage, NULL);
struct page *page = read_mapping_page(mapping, index, NULL);
if (!IS_ERR(page)) {
wait_on_page_locked(page);

6
fs/ntfs/attrib.c
View File

@@ -2529,8 +2529,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const s64 cnt, const u8 val)
end >>= PAGE_CACHE_SHIFT;
/* If there is a first partial page, need to do it the slow way. */
if (start_ofs) {
page = read_cache_page(mapping, idx,
(filler_t*)mapping->a_ops->readpage, NULL);
page = read_mapping_page(mapping, idx, NULL);
if (IS_ERR(page)) {
ntfs_error(vol->sb, "Failed to read first partial "
"page (sync error, index 0x%lx).", idx);
@@ -2600,8 +2599,7 @@ int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const s64 cnt, const u8 val)
}
/* If there is a last partial page, need to do it the slow way. */
if (end_ofs) {
page = read_cache_page(mapping, idx,
(filler_t*)mapping->a_ops->readpage, NULL);
page = read_mapping_page(mapping, idx, NULL);
if (IS_ERR(page)) {
ntfs_error(vol->sb, "Failed to read last partial page "
"(sync error, index 0x%lx).", idx);

3
fs/ntfs/file.c
View File

@@ -231,8 +231,7 @@ do_non_resident_extend:
* Read the page. If the page is not present, this will zero
* the uninitialized regions for us.
*/
page = read_cache_page(mapping, index,
(filler_t*)mapping->a_ops->readpage, NULL);
page = read_mapping_page(mapping, index, NULL);
if (IS_ERR(page)) {
err = PTR_ERR(page);
goto init_err_out;