/* part of tail2extent. replace tail items with extent one. Content of tail
items (@count bytes) being cut are copied already into
pages. extent_writepage method is called to create extents corresponding to
those pages */
static int replace(struct inode *inode, struct page **pages, unsigned nr_pages, int count)
{
int result;
unsigned i;
STORE_COUNTERS;
if (nr_pages == 0)
return 0;
assert("vs-596", pages[0]);
/* cut copied items */
result = cut_formatting_items(inode, page_offset(pages[0]), count);
if (result)
return result;
CHECK_COUNTERS;
/* put into tree replacement for just removed items: extent item, namely */
for (i = 0; i < nr_pages; i++) {
result = add_to_page_cache_lru(pages[i], inode->i_mapping,
pages[i]->index,
mapping_gfp_mask(inode->
i_mapping));
if (result)
break;
unlock_page(pages[i]);
result = find_or_create_extent(pages[i]);
if (result)
break;
SetPageUptodate(pages[i]);
}
return result;
}
/* part of tail2extent. replace tail items with extent one. Content of tail
items (@count bytes) being cut are copied already into
pages. extent_writepage method is called to create extents corresponding to
those pages */
static int replace(struct inode *inode, struct page **pages, unsigned nr_pages, int count)
{
int result;
unsigned i;
STORE_COUNTERS;
if (nr_pages == 0)
return 0;
assert("vs-596", pages[0]);
/* cut copied items */
result = cut_formatting_items(inode, page_offset(pages[0]), count);
if (result)
return result;
CHECK_COUNTERS;
/* put into tree replacement for just removed items: extent item, namely */
for (i = 0; i < nr_pages; i++) {
result = add_to_page_cache_lru(pages[i], inode->i_mapping,
pages[i]->index,
mapping_gfp_mask(inode->
i_mapping));
if (result)
break;
unlock_page(pages[i]);
result = find_or_create_extent(pages[i]);
if (result) {
/*
* Unsuccess in critical place:
* tail has been removed,
* but extent hasn't been created
*/
warning("edward-1572",
"Report the error code %i to developers. Run FSCK",
result);
break;
}
SetPageUptodate(pages[i]);
}
return result;
}
