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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix whitespace coding style issues
  nilfs2: fix oops due to a bad aops initialization
  nilfs2: fix data loss in mmap page write for hole blocks
This commit is contained in:
Linus Torvalds 2011-03-30 09:46:36 -07:00
commit 85cf0ac38c
3 changed files with 15 additions and 14 deletions
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11
fs/nilfs2/file.c
View file

@ -72,10 +72,9 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
/*
* check to see if the page is mapped already (no holes)
*/
if (PageMappedToDisk(page)) {
unlock_page(page);
if (PageMappedToDisk(page))
goto mapped;
}
if (page_has_buffers(page)) {
struct buffer_head *bh, *head;
int fully_mapped = 1;
@ -90,7 +89,6 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
if (fully_mapped) {
SetPageMappedToDisk(page);
unlock_page(page);
goto mapped;
}
}
@ -105,16 +103,17 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
return VM_FAULT_SIGBUS;
ret = block_page_mkwrite(vma, vmf, nilfs_get_block);
if (unlikely(ret)) {
if (ret != VM_FAULT_LOCKED) {
nilfs_transaction_abort(inode->i_sb);
return ret;
}
nilfs_set_file_dirty(inode, 1 << (PAGE_SHIFT - inode->i_blkbits));
nilfs_transaction_commit(inode->i_sb);
mapped:
SetPageChecked(page);
wait_on_page_writeback(page);
return 0;
return VM_FAULT_LOCKED;
}
static const struct vm_operations_struct nilfs_file_vm_ops = {

4
fs/nilfs2/page.c
View file

@ -495,12 +495,14 @@ unsigned nilfs_page_count_clean_buffers(struct page *page,
void nilfs_mapping_init(struct address_space *mapping,
struct backing_dev_info *bdi)
{
static const struct address_space_operations empty_aops;
mapping->host = NULL;
mapping->flags = 0;
mapping_set_gfp_mask(mapping, GFP_NOFS);
mapping->assoc_mapping = NULL;
mapping->backing_dev_info = bdi;
mapping->a_ops = NULL;
mapping->a_ops = &empty_aops;
}
/*