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freevxfs: Convert vxfs_immed to read_folio

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This is a "weak" conversion which converts straight back to using pages.
A full conversion should be performed at some point, hopefully by
someone familiar with the filesystem.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-04-29 11:12:16 -04:00
parent be05584f06
commit 42d7a524e9
1 changed files with 8 additions and 7 deletions
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15
fs/freevxfs/vxfs_immed.c
View file

@ -38,33 +38,34 @@
#include "vxfs_inode.h"
static int vxfs_immed_readpage(struct file *, struct page *);
static int vxfs_immed_read_folio(struct file *, struct folio *);
/*
* Address space operations for immed files and directories.
*/
const struct address_space_operations vxfs_immed_aops = {
.readpage = vxfs_immed_readpage,
.read_folio = vxfs_immed_read_folio,
};
/**
* vxfs_immed_readpage - read part of an immed inode into pagecache
* vxfs_immed_read_folio - read part of an immed inode into pagecache
* @file: file context (unused)
* @page: page frame to fill in.
* @folio: folio to fill in.
*
* Description:
* vxfs_immed_readpage reads a part of the immed area of the
* vxfs_immed_read_folio reads a part of the immed area of the
* file that hosts @pp into the pagecache.
*
* Returns:
* Zero on success, else a negative error code.
*
* Locking status:
* @page is locked and will be unlocked.
* @folio is locked and will be unlocked.
*/
static int
vxfs_immed_readpage(struct file *fp, struct page *pp)
vxfs_immed_read_folio(struct file *fp, struct folio *folio)
{
struct page *pp = &folio->page;
struct vxfs_inode_info *vip = VXFS_INO(pp->mapping->host);
u_int64_t offset = (u_int64_t)pp->index << PAGE_SHIFT;
caddr_t kaddr;