mirror of
https://github.com/torvalds/linux.git
synced 2024-12-01 08:31:37 +00:00
d3fcf834b2
Fix multiple kernel-doc warnings in freevxfs: fs/freevxfs/vxfs_subr.c:45: warning: Function parameter or member 'mapping' not described in 'vxfs_get_page' fs/freevxfs/vxfs_subr.c:45: warning: Excess function parameter 'ip' description in 'vxfs_get_page' 2 warnings fs/freevxfs/vxfs_subr.c:101: warning: expecting prototype for vxfs_get_block(). Prototype was for vxfs_getblk() instead fs/freevxfs/vxfs_super.c:184: warning: expecting prototype for vxfs_read_super(). Prototype was for vxfs_fill_super() instead Link: https://lkml.kernel.org/r/20230109022915.17504-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
153 lines
3.2 KiB
C
153 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2000-2001 Christoph Hellwig.
|
|
*/
|
|
|
|
/*
|
|
* Veritas filesystem driver - shared subroutines.
|
|
*/
|
|
#include <linux/fs.h>
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/pagemap.h>
|
|
|
|
#include "vxfs_extern.h"
|
|
|
|
|
|
static int vxfs_read_folio(struct file *, struct folio *);
|
|
static sector_t vxfs_bmap(struct address_space *, sector_t);
|
|
|
|
const struct address_space_operations vxfs_aops = {
|
|
.read_folio = vxfs_read_folio,
|
|
.bmap = vxfs_bmap,
|
|
};
|
|
|
|
inline void
|
|
vxfs_put_page(struct page *pp)
|
|
{
|
|
kunmap(pp);
|
|
put_page(pp);
|
|
}
|
|
|
|
/**
|
|
* vxfs_get_page - read a page into memory.
|
|
* @mapping: mapping to read from
|
|
* @n: page number
|
|
*
|
|
* Description:
|
|
* vxfs_get_page reads the @n th page of @ip into the pagecache.
|
|
*
|
|
* Returns:
|
|
* The wanted page on success, else a NULL pointer.
|
|
*/
|
|
struct page *
|
|
vxfs_get_page(struct address_space *mapping, u_long n)
|
|
{
|
|
struct page * pp;
|
|
|
|
pp = read_mapping_page(mapping, n, NULL);
|
|
|
|
if (!IS_ERR(pp)) {
|
|
kmap(pp);
|
|
/** if (!PageChecked(pp)) **/
|
|
/** vxfs_check_page(pp); **/
|
|
}
|
|
|
|
return (pp);
|
|
}
|
|
|
|
/**
|
|
* vxfs_bread - read buffer for a give inode,block tuple
|
|
* @ip: inode
|
|
* @block: logical block
|
|
*
|
|
* Description:
|
|
* The vxfs_bread function reads block no @block of
|
|
* @ip into the buffercache.
|
|
*
|
|
* Returns:
|
|
* The resulting &struct buffer_head.
|
|
*/
|
|
struct buffer_head *
|
|
vxfs_bread(struct inode *ip, int block)
|
|
{
|
|
struct buffer_head *bp;
|
|
daddr_t pblock;
|
|
|
|
pblock = vxfs_bmap1(ip, block);
|
|
bp = sb_bread(ip->i_sb, pblock);
|
|
|
|
return (bp);
|
|
}
|
|
|
|
/**
|
|
* vxfs_getblk - locate buffer for given inode,block tuple
|
|
* @ip: inode
|
|
* @iblock: logical block
|
|
* @bp: buffer skeleton
|
|
* @create: %TRUE if blocks may be newly allocated.
|
|
*
|
|
* Description:
|
|
* The vxfs_getblk function fills @bp with the right physical
|
|
* block and device number to perform a lowlevel read/write on
|
|
* it.
|
|
*
|
|
* Returns:
|
|
* Zero on success, else a negativ error code (-EIO).
|
|
*/
|
|
static int
|
|
vxfs_getblk(struct inode *ip, sector_t iblock,
|
|
struct buffer_head *bp, int create)
|
|
{
|
|
daddr_t pblock;
|
|
|
|
pblock = vxfs_bmap1(ip, iblock);
|
|
if (pblock != 0) {
|
|
map_bh(bp, ip->i_sb, pblock);
|
|
return 0;
|
|
}
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
/**
|
|
* vxfs_read_folio - read one page synchronously into the pagecache
|
|
* @file: file context (unused)
|
|
* @folio: folio to fill in.
|
|
*
|
|
* Description:
|
|
* The vxfs_read_folio routine reads @folio synchronously into the
|
|
* pagecache.
|
|
*
|
|
* Returns:
|
|
* Zero on success, else a negative error code.
|
|
*
|
|
* Locking status:
|
|
* @folio is locked and will be unlocked.
|
|
*/
|
|
static int vxfs_read_folio(struct file *file, struct folio *folio)
|
|
{
|
|
return block_read_full_folio(folio, vxfs_getblk);
|
|
}
|
|
|
|
/**
|
|
* vxfs_bmap - perform logical to physical block mapping
|
|
* @mapping: logical to physical mapping to use
|
|
* @block: logical block (relative to @mapping).
|
|
*
|
|
* Description:
|
|
* Vxfs_bmap find out the corresponding phsical block to the
|
|
* @mapping, @block pair.
|
|
*
|
|
* Returns:
|
|
* Physical block number on success, else Zero.
|
|
*
|
|
* Locking status:
|
|
* We are under the bkl.
|
|
*/
|
|
static sector_t
|
|
vxfs_bmap(struct address_space *mapping, sector_t block)
|
|
{
|
|
return generic_block_bmap(mapping, block, vxfs_getblk);
|
|
}
|