file.c (d5abfb1b7b26086db19ee430dea7282f01d4ef44) file.c (60b99a1b9fa731453e1b69a3e0b3e4dcab7a6ea5)
1/*
2 * file.c
3 *
4 * PURPOSE
5 * File handling routines for the OSTA-UDF(tm) filesystem.
6 *
7 * COPYRIGHT
8 * This file is distributed under the terms of the GNU General Public

--- 43 unchanged lines hidden (view full) ---

52 kaddr = kmap_atomic(page);
53 memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
54 memset(kaddr + isize, 0, PAGE_SIZE - isize);
55 flush_dcache_page(page);
56 SetPageUptodate(page);
57 kunmap_atomic(kaddr);
58}
59
1/*
2 * file.c
3 *
4 * PURPOSE
5 * File handling routines for the OSTA-UDF(tm) filesystem.
6 *
7 * COPYRIGHT
8 * This file is distributed under the terms of the GNU General Public

--- 43 unchanged lines hidden (view full) ---

52 kaddr = kmap_atomic(page);
53 memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
54 memset(kaddr + isize, 0, PAGE_SIZE - isize);
55 flush_dcache_page(page);
56 SetPageUptodate(page);
57 kunmap_atomic(kaddr);
58}
59
60static int udf_adinicb_write_begin(struct file *file,
61 struct address_space *mapping, loff_t pos,
62 unsigned len, struct page **pagep,
63 void **fsdata)
64{
65 struct page *page;
66
67 if (WARN_ON_ONCE(pos >= PAGE_SIZE))
68 return -EIO;
69 page = grab_cache_page_write_begin(mapping, 0);
70 if (!page)
71 return -ENOMEM;
72 *pagep = page;
73
74 if (!PageUptodate(page))
75 udf_adinicb_readpage(page);
76 return 0;
77}
78
79static int udf_adinicb_write_end(struct file *file, struct address_space *mapping,
80 loff_t pos, unsigned len, unsigned copied,
81 struct page *page, void *fsdata)
82{
83 struct inode *inode = page->mapping->host;
84 loff_t last_pos = pos + copied;
85 if (last_pos > inode->i_size)
86 i_size_write(inode, last_pos);
87 set_page_dirty(page);
88 unlock_page(page);
89 put_page(page);
90 return copied;
91}
92
93const struct address_space_operations udf_adinicb_aops = {
94 .dirty_folio = block_dirty_folio,
95 .invalidate_folio = block_invalidate_folio,
96 .read_folio = udf_read_folio,
97 .writepages = udf_writepages,
60static int udf_adinicb_write_end(struct file *file, struct address_space *mapping,
61 loff_t pos, unsigned len, unsigned copied,
62 struct page *page, void *fsdata)
63{
64 struct inode *inode = page->mapping->host;
65 loff_t last_pos = pos + copied;
66 if (last_pos > inode->i_size)
67 i_size_write(inode, last_pos);
68 set_page_dirty(page);
69 unlock_page(page);
70 put_page(page);
71 return copied;
72}
73
74const struct address_space_operations udf_adinicb_aops = {
75 .dirty_folio = block_dirty_folio,
76 .invalidate_folio = block_invalidate_folio,
77 .read_folio = udf_read_folio,
78 .writepages = udf_writepages,
98 .write_begin = udf_adinicb_write_begin,
79 .write_begin = udf_write_begin,
99 .write_end = udf_adinicb_write_end,
100 .direct_IO = udf_direct_IO,
101};
102
103static vm_fault_t udf_page_mkwrite(struct vm_fault *vmf)
104{
105 struct vm_area_struct *vma = vmf->vma;
106 struct inode *inode = file_inode(vma->vm_file);

--- 210 unchanged lines hidden --- 		80 .write_end = udf_adinicb_write_end,
81 .direct_IO = udf_direct_IO,
82};
83
84static vm_fault_t udf_page_mkwrite(struct vm_fault *vmf)
85{
86 struct vm_area_struct *vma = vmf->vma;
87 struct inode *inode = file_inode(vma->vm_file);

--- 210 unchanged lines hidden ---