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| author | Ryusuke Konishi | 2011-04-04 05:53:28 +0200 |
|---|---|---|
| committer | Ryusuke Konishi | 2011-05-10 15:21:44 +0200 |
| commit | 1cb2d38cb3e59d58e8321a0592e84b5761afb063 (patch) | |
| tree | 151e7ffccd72f786a3da511b0f23906961835a22 /fs/nilfs2/file.c | |
| parent | nilfs2: merge list_del()/list_add_tail() to list_move_tail() (diff) | |
| download | kernel-qcow2-linux-1cb2d38cb3e59d58e8321a0592e84b5761afb063.tar.gz kernel-qcow2-linux-1cb2d38cb3e59d58e8321a0592e84b5761afb063.tar.xz kernel-qcow2-linux-1cb2d38cb3e59d58e8321a0592e84b5761afb063.zip | |
nilfs2: get rid of private page allocator
Previously, nilfs was cloning pages for mmapped region to freeze their
data and ensure consistency of checksum during writeback cycles. A
private page allocator was used for this page cloning. But, we no
longer need to do that since clear_page_dirty_for_io function sets up
pte so that vm_ops->page_mkwrite function is called right before the
mmapped pages are modified and nilfs_page_mkwrite function can safely
wait for the pages to be written back to disk.
So, this stops making a copy of mmapped pages during writeback, and
eliminates the private page allocation and deallocation functions from
nilfs.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/file.c')
| -rw-r--r-- | fs/nilfs2/file.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c index 397e73258631..d7eeca62febd 100644 --- a/fs/nilfs2/file.c +++ b/fs/nilfs2/file.c @@ -111,7 +111,6 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) nilfs_transaction_commit(inode->i_sb); mapped: - SetPageChecked(page); wait_on_page_writeback(page); return VM_FAULT_LOCKED; } |