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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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Pekka Enberg 2006-06-23 02:05:08 -07:00 • committed by Linus Torvalds
commit 090d2b185d
22 changed files with 38 additions and 56 deletions
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4
fs/afs/dir.c
View file

@ -185,9 +185,7 @@ static struct page *afs_dir_get_page(struct inode *dir, unsigned long index)
_enter("{%lu},%lu", dir->i_ino, index);
page = read_cache_page(dir->i_mapping,index,
(filler_t *) dir->i_mapping->a_ops->readpage,
NULL);
page = read_mapping_page(dir->i_mapping, index, NULL);
if (!IS_ERR(page)) {
wait_on_page_locked(page);
kmap(page);

11
fs/afs/mntpt.c
View file

@ -63,7 +63,6 @@ unsigned long afs_mntpt_expiry_timeout = 20;
int afs_mntpt_check_symlink(struct afs_vnode *vnode)
{
struct page *page;
filler_t *filler;
size_t size;
char *buf;
int ret;
@ -71,10 +70,7 @@ int afs_mntpt_check_symlink(struct afs_vnode *vnode)
_enter("{%u,%u}", vnode->fid.vnode, vnode->fid.unique);
/* read the contents of the symlink into the pagecache */
filler = (filler_t *) AFS_VNODE_TO_I(vnode)->i_mapping->a_ops->readpage;
page = read_cache_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0,
filler, NULL);
page = read_mapping_page(AFS_VNODE_TO_I(vnode)->i_mapping, 0, NULL);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
goto out;
@ -160,7 +156,6 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
struct page *page = NULL;
size_t size;
char *buf, *devname = NULL, *options = NULL;
filler_t *filler;
int ret;
kenter("{%s}", mntpt->d_name.name);
@ -182,9 +177,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
goto error;
/* read the contents of the AFS special symlink */
filler = (filler_t *)mntpt->d_inode->i_mapping->a_ops->readpage;
page = read_cache_page(mntpt->d_inode->i_mapping, 0, filler, NULL);
page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL);
if (IS_ERR(page)) {
ret = PTR_ERR(page);
goto error;