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[PATCH] read_mapping_page for address space

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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
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6
fs/ntfs/attrib.c
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@ -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);