Commit 174cb748 authored by Jan Kara's avatar Jan Kara

udf: Move udf_adinicb_readpage() to inode.c

udf_adinicb_readpage() is only called from aops functions, move it to
the same file as its callers and also drop the stale comment -
invalidate_lock is protecting us against races with truncate.
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 759e4d74
......@@ -38,25 +38,6 @@
#include "udf_i.h"
#include "udf_sb.h"
void udf_adinicb_readpage(struct page *page)
{
struct inode *inode = page->mapping->host;
char *kaddr;
struct udf_inode_info *iinfo = UDF_I(inode);
loff_t isize = i_size_read(inode);
/*
* We have to be careful here as truncate can change i_size under us.
* So just sample it once and use the same value everywhere.
*/
kaddr = kmap_atomic(page);
memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
memset(kaddr + isize, 0, PAGE_SIZE - isize);
flush_dcache_page(page);
SetPageUptodate(page);
kunmap_atomic(kaddr);
}
static vm_fault_t udf_page_mkwrite(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
......
......@@ -215,6 +215,21 @@ static int udf_writepages(struct address_space *mapping,
return write_cache_pages(mapping, wbc, udf_adinicb_writepage, NULL);
}
static void udf_adinicb_readpage(struct page *page)
{
struct inode *inode = page->mapping->host;
char *kaddr;
struct udf_inode_info *iinfo = UDF_I(inode);
loff_t isize = i_size_read(inode);
kaddr = kmap_atomic(page);
memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
memset(kaddr + isize, 0, PAGE_SIZE - isize);
flush_dcache_page(page);
SetPageUptodate(page);
kunmap_atomic(kaddr);
}
static int udf_read_folio(struct file *file, struct folio *folio)
{
struct udf_inode_info *iinfo = UDF_I(file_inode(file));
......
......@@ -137,7 +137,6 @@ static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi)
/* file.c */
extern long udf_ioctl(struct file *, unsigned int, unsigned long);
void udf_adinicb_readpage(struct page *page);
/* inode.c */
extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
......
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