wakeup_pdflush(1024);
yield();
- for_each_pgdat(pgdat) {
+ for_each_online_pgdat(pgdat) {
zones = pgdat->node_zonelists[gfp_zone(GFP_NOFS)].zones;
if (*zones)
try_to_free_pages(zones, GFP_NOFS);
if (!mapping->assoc_mapping) {
mapping->assoc_mapping = buffer_mapping;
} else {
- if (mapping->assoc_mapping != buffer_mapping)
- BUG();
+ BUG_ON(mapping->assoc_mapping != buffer_mapping);
}
if (list_empty(&bh->b_assoc_buffers)) {
spin_lock(&buffer_mapping->private_lock);
if (!page)
return NULL;
- if (!PageLocked(page))
- BUG();
+ BUG_ON(!PageLocked(page));
if (page_has_buffers(page)) {
bh = page_buffers(page);
struct page *page, unsigned long offset)
{
bh->b_page = page;
- if (offset >= PAGE_SIZE)
- BUG();
+ BUG_ON(offset >= PAGE_SIZE);
if (PageHighMem(page))
/*
* This catches illegal uses and preserves the offset:
sector_t block;
sector_t last_block;
struct buffer_head *bh, *head;
+ const unsigned blocksize = 1 << inode->i_blkbits;
int nr_underway = 0;
BUG_ON(!PageLocked(page));
last_block = (i_size_read(inode) - 1) >> inode->i_blkbits;
if (!page_has_buffers(page)) {
- create_empty_buffers(page, 1 << inode->i_blkbits,
+ create_empty_buffers(page, blocksize,
(1 << BH_Dirty)|(1 << BH_Uptodate));
}
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
} else if (!buffer_mapped(bh) && buffer_dirty(bh)) {
+ WARN_ON(bh->b_size != blocksize);
err = get_block(inode, block, bh, 1);
if (err)
goto recover;
if (buffer_new(bh))
clear_buffer_new(bh);
if (!buffer_mapped(bh)) {
+ WARN_ON(bh->b_size != blocksize);
err = get_block(inode, block, bh, 1);
if (err)
break;
fully_mapped = 0;
if (iblock < lblock) {
+ WARN_ON(bh->b_size != blocksize);
err = get_block(inode, iblock, bh, 0);
if (err)
SetPageError(page);
create = 1;
if (block_start >= to)
create = 0;
+ map_bh.b_size = blocksize;
ret = get_block(inode, block_in_file + block_in_page,
&map_bh, create);
if (ret)
err = 0;
if (!buffer_mapped(bh)) {
+ WARN_ON(bh->b_size != blocksize);
err = get_block(inode, iblock, bh, 0);
if (err)
goto unlock;
struct inode *inode = mapping->host;
tmp.b_state = 0;
tmp.b_blocknr = 0;
+ tmp.b_size = 1 << inode->i_blkbits;
get_block(inode, block, &tmp, 0);
return tmp.b_blocknr;
}